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NOTE

When installing the belts DO NOT
wrap belt around the tensioner until af-
ter the belt has been wrapped around
all other pulleys and idlers.

2.

After installing the belt, carefully
allow the belt tensioner to spring
back to its normal position. If the
tensioner had been temporarily
blocked, relieve tensioner pressure
enough to remove the locking pin,
then allow the tensioner to spring
back to its normal position.

NOTE

DO NOT reuse nylon patch lock nuts.
Replace with new lock nuts when rein-
stalling parts.

3.

Reinstall fan blade using NEW
5/16-18 UNC-2A on Horton fans, or
3/8-24UNF-2A on BorgWarner
fans, with nylon patch lock nuts.

4.

Reconnect the electrical ground
wire to the battery.

Poly V-belt, Alternator, Air-

Conditioning Compressor Drive

and Coolant Pump Drive Removal

Follow the steps below to remove the poly
V-belt, alternator, air-conditioning
compressor drive and coolant pump drive
belts:

1.

Remove the poly V-belt from the
fan and coolant pump drive as
described in "Poly V-belt and Fan
Drive Belt Removal."

NOTE

Removing  the  fan  blade  is  not  neces-
sary  if  only  the  accessory  belt  is  re-
moved.  After  removing  the  fan  drive
belt from its pulleys the accessory belt
can be removed over the fan blade.

2.

Next, place a flex-bar with a 15 mm
socket on the alternator and air
conditioning compressor drive belt
tensioner roller fastener as shown.
Move the bar in the direction
shown to relieve pressure on the
belt tensioner.

Flex Bar on Tensioner - Compressor and Coolant
Pump Belt

3.

With the belt tensioner pressure
relieved, remove the poly V-belt
from the pulleys.

•

The tensioner can be
temporarily blocked with a
0.16-0.2 inch (4-5 mm) thick pin
(bore). This facilitates removal
and installation of the poly V-
belt.

4.

After removing the belt, carefully
allow the belt tensioner to spring

ENGINE MAINTENANCE - Maintenance Procedures

90

Y53-1166-1M1 (10/2020)

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Содержание MX-11

Страница 1: ...Operator s Manual Operator s Manual 2021 Model Year Warranty 2021 Emissions ...

Страница 2: ......

Страница 3: ...Engine Operation 1 Engine Maintenance 2 Engine Warranty 3 Contents ...

Страница 4: ......

Страница 5: ... on this vehicle Please disregard any illustrations or descriptions relating to features or equipment which are not on this vehicle PACCAR reserves the right to discontinue change specifications or change the design of its vehicles at any time without notice and without incurring any obligation The information contained in this manual is proprietary to PACCAR Reproduction in whole or in part by an...

Страница 6: ...Chapter 1 ENGINE OPERATION Safety Introduction 5 Emergency What To Do If 10 Operating Instructions 13 ENGINE OPERATION 4 Y53 1166 1M1 10 2020 1 ...

Страница 7: ...uickly and easily first is the Quick Table of Contents Located at the front of the manual this table lists the main subjects covered and gives section numbers where you can find these subjects Use the Quick Table of Contents to find information on a large subject and then use the detailed table of contents found on the first page of each chapter Cross referenced citations also help you get the inf...

Страница 8: ...hlight things that may not be obvious and is useful to your efficient operation of the vehicle Example NOTE Pumping the accelerator will not assist in starting the engine Forward This manual contains information for the correct operation and maintenance of your PACCAR engine Read and follow all safety instructions Refer to the WARNING in the General Safety Instructions on page 7 Keep this manual w...

Страница 9: ...d and understand all of the safety precautions and warnings The following is a list of general safety precautions that must be followed to provide personal safety Failure to follow these instructions may cause death or injury Special safety precautions are included in the procedures when they apply Keep in mind that even a well maintained vehicle must be operated within the range of its mechanical...

Страница 10: ...moving or disconnecting any lines fittings or related items relieve all pressure in the air oil fuel and cooling systems Remain alert for possible pressure when disconnecting any device from a system that contains pressure High pressure oil or fuel can cause death or personal injury Always wear protective clothing when working on any refrigerant lines and make sure that the workplace is well venti...

Страница 11: ...s in the United States of America have determined that used engine oil can be carcinogenic and can cause reproductive toxicity Avoid inhalation of vapors ingestion and prolonged contact with used engine oil DO NOT connect the jump starting or battery charging cables to any ignition or governor control wiring This can cause electrical damage to the ignition or governor Coolant is toxic If not reuse...

Страница 12: ... translation service to ensure quality assistance for customers in any language They can t answer your warranty questions but can get you in contact with an authorized dealer who can The PACCAR Customer Center service is FREE Stop Engine Lamp 1 2 The stop engine warning lamp will illuminate and an audible tone will sound when a major engine problem exists Your vehicle will be equipped with one of ...

Страница 13: ...light come on while driving do the following 1 Slow down carefully 2 Move a safe distance off the road and stop 3 Place the transmission in neutral N and set the parking brake See Parking Brake Valve and Operating the Transmission in your vehicle Operator s Manual for transmission shifting and parking brake information 4 Turn OFF the engine 5 Turn ON the emergency flasher and use other warning dev...

Страница 14: ...ing condi tions such as Climbing a hill on a hot day Stopping after high speed high load driving Debris blocking air flow through the cooling module radiator If the engine coolant temperature warning lamp comes on and the audible alarm sounds showing an overheat condition or if you have any other reason to suspect the engine may be overheating DO NOT TURN OFF THE ENGINE unless a low water warning ...

Страница 15: ... a warning icon turns on that re quires the engine to be shut off 2 Check to ensure the Oil Pressure Gauge reads normal 3 Make sure the engine fan is turning by switching the Engine Fan Switch from AUTO to MAN Manual 4 Idle the engine to see if this reduces the coolant temperature If the temperature does not begin to drop shut off the engine and contact your nearest authorized dealer 5 If the temp...

Страница 16: ...gines with the engine protection shutdown feature enabled the stop engine lamp will begin to flash 30 seconds before the engine automatically shuts down The warning lamp alerts the operator to the impending shutdown The lamp will also illuminate when the DEF tank is almost empty or the soot level in the DPF is at full capacity At this level warning regeneration cannot be performed and engine power...

Страница 17: ...ted message will appear when the DPF needs to be regenerated and then also during the regeneration cycle This may also appear if the system is attempting to automatically regenerate while the vehicle is in Power Take Off operation mode Engine aftertreatment system includes a diesel particulate filter and DPF warning light High Exhaust System Temperature HEST Warning Lamp Keep vehicle a safe distan...

Страница 18: ... If the lamp illuminates but the level is full seek service immediately for DEF fluid quality or DEF equipment repair Engine Braking System An engine compression brake is standard on the MX 11 engines Optionally this engine may be equipped with an exhaust brake When activated these devices supplement the service brakes by creating a braking effect on the drive wheels helping keep your vehicle s se...

Страница 19: ...ip due to operation on slippery surfa ces Ideally on normal road surfaces you should slow your vehicle with the engine compression brake or exhaust brake where permitted by law and use the service brakes only for stopping completely Operating this way will greatly prolong the life of the service brakes Engine Compression Brake With the engine compression brake switch ON the brake automatically cre...

Страница 20: ...y result in equipment or property damage Engine Compression Brake Level Switch Operation For the three position engine compression brake level switch there will be 100 percent engine braking when the switch is in the up HIGH position In the middle MEDIUM position there will be 66 percent engine braking In the down LOW position there will be 33 percent engine braking With the engine compression bra...

Страница 21: ...ngaging the starter motor for more than 30 seconds in any five minute pe riod may cause it to overheat and can damage the starter If starter is engaged continuous ly for 30 seconds you must wait five minutes before trying to start the engine to allow the starter motor to cool down With the key in the ON position the engine warning lamps will come on momentarily and then go out The engine warning l...

Страница 22: ...s may be present Failure to comply may result in death personal injury equipment or property damage NOTE IT IS THE RESPONSIBILITY OF THE OWNER AND OPERATOR TO OPER ATE THE VEHICLE IN A SAFE ENVI RONMENT Normal Starting Procedure Follow this engine starting procedure when the outside temperature is above 50 F 10 C 1 Ensure the parking brake is set ON and the transmission shift lever is in neutral F...

Страница 23: ...p goes out During cold weather the use of winter fuel blends can significantly improve the ease of starting performance and overall dependability of your vehicle Winter fuel blends are designed to reduce wax gelling in the fuel filter and lines If Starting a cold engine remember to slowly increase the engine speed This provides adequate lubrication to the bearings and gives ample time to allow the...

Страница 24: ...omentary conditions down to peak torque engine speed This is consistent with recommended operating practices CAUTION Operating the engine beyond the max imum engine speed can cause severe engine damage Use proper operating techniques for the vehicle to prevent engine overspeed See Engine Speci fications for maximum engine speed Failure to comply may result in equip ment or property damage Extended...

Страница 25: ...e removed from the DPF If the vehicle cannot perform an automatic cycle the driver may be prompted with message to regenerate the DPF with a Do Not Drive message The driver must complete a regeneration before driving If the Do Not Drive message is ignored and a DPF regeneration is not fully completed before driving there is a high possibility of equipment damage If an engine must idle for an exten...

Страница 26: ...cation equipment If any interference condition is noticed follow these suggestions to reduce the amount of EMI 1 Locate the accessory receiving antenna further away 2 Check with the accessory supplier representative in your area to Accurately calibrate the accessory for proper frequency power output and sensitivity Determine the optimum antenna location by obtaining antenna reflective energy data ...

Страница 27: ...tch pedal The engine brake or exhaust brake will immediately begin to operate slowing the vehicle For operation on dry and relatively flat surfaces when greater braking power is not required put the two position selector switch in the LOW position For operation on dry pavement when maximum braking power is required put the three position selector switch in the HI position Operating on Grades and D...

Страница 28: ... will affect the engine war ranty See Engine Specifications WARNING DO NOT operate the engine compres sion brake or exhaust brake when driv ing operating your vehicle bobtail or with a loaded or unloaded trailer on road surfaces with poor traction wet icy or snow covered roads or in heavy traffic There may not be enough weight on the rear axle to pro vide traction Braking caused by the normal oper...

Страница 29: ...ngine compression brake or exhaust brake is NOT intended as the primary brake for the vehicle nor is it an emergency brake The engine compression brake only helps the service brakes by using pressure to slow the drivetrain Use the service brakes for quick stops Braking Truck on Grade WARNING DO NOT drive with frequent or contin uous use of the service brakes This can overheat the brakes and result...

Страница 30: ...pression brake or exhaust brake instead of the service brakes may cause a loss of vehicle control which may result in an accident involving death or personal injury When driving on slick roads start with the ON OFF switch in the OFF position and the two position selector switch in the LOW position If your tractor is equipped with a twin screw rear axle position the power divider switch in the unlo...

Страница 31: ...if there is a fishtailing motion switch the ON OFF switch to the OFF position DO NOT attempt to use the engine compression brake or exhaust brake in the HI position ENGINE OPERATION Operating Instructions Y53 1166 1M1 10 2020 29 1 ...

Страница 32: ... Recommendations and Specifications 56 Engine Oil Capacities and Pressures 57 Engine Lubrication and Filter Intervals 57 Cooling System Maintenance 59 Engine Coolant Specifications 62 Extended Life Coolant 63 Fuel Recommendations 63 Warranty and the Use of Renewable and Other Paraffinic Diesel Fuels 65 Warranty and the Use of Biodiesel Fuel 65 Recommendations to Avoid Fuel Gelling 66 ENGINE MAINTE...

Страница 33: ...Maintenance Procedures 66 Engine Identification 97 ENGINE MAINTENANCE Y53 1166 1M1 10 2020 31 2 ...

Страница 34: ...ath personal injury equipment or property damage WARNING Exhaust fumes from the engine con tain carbon monoxide a colorless and odorless gas DO NOT breathe the en gine exhaust gas A poorly maintained damaged or corroded exhaust system can allow carbon monoxide to enter the cab Entry of carbon monoxide into the cab is also possible from other ve hicles nearby Failure to properly main tain your vehi...

Страница 35: ...ing maintenance checks 1 Inspect for cracks 2 Inspect for clearance to other components Coolant Level Replacement or top up coolant should have the same antifreeze concentration and corrosion inhibitor content as the original coolant in the cooling system If operating in sub freezing conditions a 60 40 mix of antifreeze and distilled water may be substituted Always dilute antifreeze to the correct...

Страница 36: ...nance checks 1 See Engine Oil Level on page 66 Preventative Maintenance Schedule Intervals Perform maintenance at whichever interval occurs first At Maintenance Schedule Intervals perform all previous maintenance checks that are due for scheduled maintenance NOTE This maintenance schedule is for a normal duty cycle engine operation Severe duty vocational applications will need to adjust mileage ki...

Страница 37: ... System Refer to Coolant Antifreeze Condition on page 83 for maintenance instructions Less than 20 Idle Time 75 000 mi 120 000 km 2 250 hrs 12 mo 1 yr Less than 20 Idle Time 75 000 mi 120 000 km 2 250 hrs 12 mo 1 yr 3 Charging Cranking System Refer to Batteries Cables and Connections on page 96 for maintenance instructions 2 Ensure that all maintenance intervals leading up to this point are repeat...

Страница 38: ...han 20 Idle Time 150 000 mi 240 000 km 4 500 hrs 24 mo 2 yrs 5 Cooling System Refer to Radiator Hoses on page 84 for maintenance instructions Crankshaft Refer to Crankshaft Vibration Damper on page 96 for maintenance instructions 3 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of those listed here 4 Use of poor quality fuel...

Страница 39: ...rategy Refer to Diesel Exhaust Fluid DEF Filter on page 92 for maintenance instructions Cooling System Refer to Replace Coolant Filter on page 84 for maintenance instructions Less than 20 Idle Time 375 000 mi 600 000 km 8 450 hrs 48 mo 4 yrs 5 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of those listed here 6 Ensure that ...

Страница 40: ...to Poly V belt and Fan Drive Belt Removal on page 89 Replace for maintenance instructions Less than 20 Idle Time 600 000 mi 965 000 km 18 000 hrs 72 mo 6 yrs 7 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of those listed here 8 Ensure that all maintenance intervals leading up to this point are repeated during this interval...

Страница 41: ...o 8 yrs 10 Cooling System Refer to Change Extended Life Coolant on page 63 for maintenance instructions Greater than 20 Idle Time Greater than 20 Idle Time 25 000 mi 40 000 km 750 hrs 6 mo 9 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of those listed here 10 Ensure that all maintenance intervals leading up to this point a...

Страница 42: ...em Refer to Coolant Antifreeze Condition on page 83 for maintenance instructions Greater than 20 Idle Time 50 000 mi 80 000 km 1 500 hrs 12 mo 1 yr Greater than 20 Idle Time 50 000 mi 80 000 km 1 500 hrs 12 mo 1 yr 12 Charging Cranking System Refer to Batteries Cables and Connections on page 96 for maintenance instructions 11 Ensure that all maintenance intervals leading up to this point are repea...

Страница 43: ...r than 20 Idle Time 150 000 mi 240 000 km 4 500 hrs 24 mo 2 yrs 14 Cooling System Refer to Radiator Hoses on page 84 for maintenance instructions Crankshaft Refer to Crankshaft Vibration Damper on page 96 for maintenance instructions 12 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of those listed here 13 Use of poor qualit...

Страница 44: ... Strategy Refer to Diesel Exhaust Fluid DEF Filter on page 92 for maintenance instructions Cooling System Refer to Replace Coolant Filter on page 84 for maintenance instructions Greater than 20 Idle Time 350 000 mi 560 000 km 7 850 hrs 48 mo 4 yrs 14 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of those listed here 15 Ensu...

Страница 45: ...er to Poly V belt and Fan Drive Belt Removal on page 89 Replace for maintenance instructions Greater than 20 Idle Time 600 000 mi 965 000 km 18 000 hrs 72 mo 6 yrs 16 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of those listed here 17 Ensure that all maintenance intervals leading up to this point are repeated during this ...

Страница 46: ...maintenance instructions Severe Duty Vocational Vocational vehicle applications include Agriculture Concrete Mixers Construction Crane Dumps Emergency Fire Heavy Equipment Loggers Mining Oil Field Snowplows and Wrecker Severe Duty Vocational 15 000 mi 24 000 km 400 hrs 6 mo 18 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion o...

Страница 47: ... System Refer to Coolant Antifreeze Condition on page 83 for maintenance instructions Severe Duty Vocational 30 000 mi 48 000 km 800 hrs 12 mo 1 yr Severe Duty Vocational 30 000 mi 48 000 km 800 hrs 12 mo 1 yr 21 Charging Cranking System Refer to Batteries Cables and Connections on page 96 for maintenance instructions 20 Ensure that all maintenance intervals leading up to this point are repeated d...

Страница 48: ...ty Vocational 60 000 mi 96 000 km 1 600 hrs 24 mo 2 yrs 23 Cooling System Refer to Radiator Hoses on page 84 for maintenance instructions Crankshaft Refer to Crankshaft Vibration Damper on page 96 for maintenance instructions 21 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of those listed here 22 Use of poor quality fuel m...

Страница 49: ... Refer to Diesel Particulate Filter DPF Service Strategy on page 91 Dry Cleaning Strategy Severe Duty Vocational 180 000 mi 290 000 km 5 400 hrs 36 mo 3 yrs 23 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of those listed here 24 Ensure that all maintenance intervals leading up to this point are repeated during this interva...

Страница 50: ...er on page 92 for maintenance instructions Cooling System Refer to Replace Coolant Filter on page 84 for maintenance instructions Severe Duty Vocational 450 000 mi 725 000 km 13 500 hrs 48 mo 4 yrs 25 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of those listed here 26 Ensure that all maintenance intervals leading up to th...

Страница 51: ... System Refer to Change Extended Life Coolant on page 63 for maintenance instructions Pick up Delivery Refuse Pick up Delivery Refuse 15 000 mi 24 000 km 400 hrs 6 mo 27 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of those listed here 28 Ensure that all maintenance intervals leading up to this point are repeated during th...

Страница 52: ... Air Cooler on page 93 for maintenance instructions Charging Cranking System Refer to Electrical Harness Cables on page 95 for maintenance instructions Cooling System Refer to Coolant Antifreeze Condition on page 83 for maintenance instructions Pick up Delivery Refuse 30 000 mi 48 000 km 800 hrs 12 mo 1yr 29 Ensure that all maintenance intervals leading up to this point are repeated during this in...

Страница 53: ...ctions Engine Lubrication Refer to Engine Lubrication and Filter Intervals on page 57 for maintenance instructions Fuel System Refer to Fuel Filter on page 77 Replace31 Pick up Delivery Refuse 60 000 mi 96 000 km 1 600 hrs 12 mo 1 yr 30 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of those listed here 31 Use of poor qualit...

Страница 54: ...elivery Refuse 90 000 mi 144 000 km 1 600 hrs 12 mo 1 yr 33 Aftertreatment System Refer to Diesel Particulate Filter DPF Service Strategy on page 91 Dry Cleaning Strategy Pick up Delivery Refuse 125 000 mi 200 000 km 4 500 hrs 24 mo 2 yrs 32 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of those listed here 33 Ensure that a...

Страница 55: ...er on page 92 for maintenance instructions Cooling System Refer to Replace Coolant Filter on page 84 for maintenance instructions Pick up Delivery Refuse 450 000 mi 725 000 km 13 500 hrs 48 mo 4yrs 34 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of those listed here 35 Ensure that all maintenance intervals leading up to th...

Страница 56: ...tended Life Coolant on page 63 for maintenance instructions Engine Specifications PACCAR MX 11 Engine Specifications Horsepower See the EPA label on top of the valve cover or on the mixer manifold 36 Ensure that all maintenance intervals leading up to this point are repeated during this interval prior to the completion of those listed here 37 Ensure that all maintenance intervals leading up to thi...

Страница 57: ...gine brake active 2 100 rpm Fault code registers with engine brake active 2 300 rpm Maximum Continuous No Load Governed Speed 2 200 rpm Engine Over Speed 2 301 to 2 499 rpm Misuse 2 300 rpm or greater FEPTO Rotation and Ratio Clockwise 1 1 FEPTO Torque Limit 516 lb ft continuous REPTO Rotation and Ratio Clockwise 1 3 1 1 o clock 1 46 1 11 o clock REPTO Torque Limit 1 o clock 738 lb ft max 590 lb f...

Страница 58: ...J 4 heavy duty engine oil The primary PACCAR recommendation is for the use of 10W 30 multigrade lubricating oil for normal operation at ambient temperatures above 5 F 15 C For ambient temperatures below 5 F 15 C SAE 5W 30 may be used provided it meets API CK 4 CJ 4 oil specifications and biodiesel or biodiesel blended fuel is not used as fuel for the engine Using a multigrade oil helps improve eng...

Страница 59: ...ty and Acceptable Pressures PACCAR MX 11 Oil Pressure at Low Idle min allowable 650 50 100 rpm 14 5 psi at 239 F 100 kPa at 115 C oil temperature At road speed 900 1 300 rpm min allowable 22 33 psi at 239 F 150 230 kPa at 115 C oil temperature At road speed 1 300 2 100 rpm min allowable 33 psi at 239 F 230 kPa at 115 C oil temperature Regulated oil pressure nominal 34 8 psi 4 4 at 239 F 240 kPa 30...

Страница 60: ... to comply may result in equipment or property damage Determining Type of Vehicle Application for Engine Oil Drain Intervals Severe Duty Vocational Normal Duty Line Haul Fuel Consumption Less than 6 MPG 2 6 km L 6 MPG 2 6 km L or greater Gross Vehicle Weight Greater than 80 000 lb 36 300 kg 80 000 lb 36 300 kg or less Vocational vehicle applications include Agriculture Concrete Mixers Construction...

Страница 61: ...plications include Agriculture Concrete Mixers Construction Crane Dumps Emergency Fire Heavy Equipment Loggers Mining Oil Field Snowplows and Wrecker NOTE If B6 B20 biodiesel fuel is used the oil and filter must be changed every 40 000 mi 64 000 km for line haul ap plications every 20 000 mi 32 000 km for severe duty or every six months Cooling System Maintenance The cooling system in your vehicle...

Страница 62: ...may result in death person al injury equipment or property dam age CAUTION The engine cooling system has very specific maintenance and inspection requirements Failure to follow require ments can damage the engine Engine damage can include but is not limited to freezing boiling corrosion pitted cylinder liners This information is found in the engine manufacturers owner s manual It is the owner s re...

Страница 63: ...d laboratory sample procedures Coolant Extender Add extended life coolant extender if necessary according to the corrosion inhibitor concentration required DO NOT add coolant extender to nitrite free coolant Checking Coolant Level Check the coolant level daily See Coolant Level on page 33 CAUTION When adding coolant avoid mixing dif ferent brands and formulations If the coolant is mixed with more ...

Страница 64: ... in the cooling sys tem The use of sealing additives can Build up in coolant low flow areas Plug the radiator and oil cooler Damage the water pump seal Damage heat transfer surfaces Damage seals and hoses Corrode brass and copper Failure to comply may result in equip ment or property damage Engine Coolant Specifications Engine Coolant Specifications for PACCAR MX 11 Coolant Capacity Approx 12 5 ga...

Страница 65: ... interval is 1 000 000 miles 1 600 000 km 20 000 hours 8 years with an extender addition at 500 000 miles 800 000 km 10 000 hours 4 years Nitrite Free Extended Life Coolant Nitrite free organic acid technology coolant OAT may be used if it meets DAF 74002 The change interval for nitrite free coolant is 600 000 miles 1 000 000 km or 6 years with no extender needed DO NOT add coolant extender to nit...

Страница 66: ...n equipment or property damage CAUTION DO NOT use high sulfur diesel fuel as it will damage the exhaust aftertreat ment system Also the engine will not meet emission regulations Use only ultra low sulfur diesel ULSD fuel Failure to comply may result in equip ment or property damage CAUTION If ultra low sulfur diesel ULSD fuel is not used the engine may not meet emission regulations and damage may ...

Страница 67: ...p by PACCAR and therefore will not be covered by the PACCAR engine warranty Specifically raw or unprocessed vegetable oils differ heavily from paraffinic diesel and are not approved PACCAR recommends that customers intending to use paraffinic diesel become familiar with the properties of these fuels Please reference the fuel supplier s technical information and request a copy of the certificate of...

Страница 68: ...fuel gelling in cold weather Use appropriate fuel grade blend for conditions Spec your vehicle with proper cold weather equipment 12V electric pre heater fuel coolant heater 12V fuel line heaters and fuel tank heaters PACCAR does not recommend the use of fuel additives however should a customer decide there is a need for temporary use of a winter fuel additive PACCAR offers the following guidance ...

Страница 69: ...en the low oil level mark 2 and high oil level mark 1 is 9 5 US quarts 9 liters Engine Oil Dip Stick Markings 1 2 1 High oil level 1 2 Low oil level 2 Topping Up the Engine Oil If checking the engine oil just after stopping the engine wait 15 minutes for the oil to drain back into the oil pan before checking the fluid level This procedure should be followed when oil level is low and more oil needs...

Страница 70: ...ite Pan CAUTION The drain plug is on the bottom of the oil pan Do not use any other plug on the pan as a drain Doing so may dam age the pan leak oil and damage the engine 1 Drain Plug 2 Not drain plugs Oil Pan Drain Plug Installation 1 1 Stop ENGINE MAINTENANCE Maintenance Procedures 68 Y53 1166 1M1 10 2020 2 ...

Страница 71: ...its from the oil to prolong the life of internal moving components Always use quality engine lubricating oils in conjunction with the appropriate oil drain and filter change intervals Refer to the Preventative Maintenance Schedule for the recommended oil and filter change service interval CAUTION Use of non genuine PACCAR oil filters can cause severe engine damage Oil Filter Removal Preparation CA...

Страница 72: ...n nect the battery clamp when the en gine is running Disconnecting the bat tery clamps while the engine is running may result in death personal injury or equipment damage from electrical arc ing or damage to electrical compo nents 1 Disconnect the chassis battery cable at the negative battery terminal 2 Place an oil collection pan directly under the oil filter Oil Filter Removal Follow the procedu...

Страница 73: ...e lower cap 1 4 turn to release the cap 7 Remove the O ring from the lower cap 8 Remove the full flow oil filter from the oil module Removing Full flow Oil Filter WARNING Lubricating oil can cause skin irritation or skin injury To prevent skin injury avoid unnecessary contact with the lu bricating oil Wear protective clothing eye wear and gloves when handling lubricating oil Failure to comply may ...

Страница 74: ...cedure to install oil filters 1 Install the new full flow oil filter element into the oil module Installing Full flow Oil Filter 2 Lightly lubricate the new O ring for the lower cap with clean engine oil 3 Install the new O ring onto the lower cap 4 Tighten the lower cap 1 4 turn to lock the full flow oil filter in place 5 Install the new centrifugal oil filter element onto the centrifuge base Ins...

Страница 75: ... Oil Filter s Follow the steps below after installing new oil filters 1 Reconnect the chassis battery cable at the negative battery terminal See Oil Filter Removal Preparation 2 Add SAE approved CK 4 CJ 4 engine oil to the maximum level marked on the dipstick If the engine is running a different weight of oil be sure to top off the engine oil with the same brand and viscosity of oil 3 Make sure th...

Страница 76: ... level and top up as necessary See Engine Oil Level Open Crankcase Ventilation OCV Module Maintenance This emissions related component separates oil from air coming from the crank case vent The unit sends the extracted oil back into the engine and provides clean vent air back into the air intake OCV How to Remove a Open Crankcase Ventilation Module Follow the steps below to remove the OCV 1 Discon...

Страница 77: ...ssemble a OCV Ensure that you have followed these steps How to Remove a Open Crankcase Ventilation Module on page 74 before proceeding with disassembling the unit Follow the steps below to disassemble the OCV to gain access to the replaceable filter and gaskets 1 Lay the OCV module on a clean table with the engine interface facing down 2 Unscrew the four bolts 1 using a ratchet with 10 mm socket 3...

Страница 78: ...skets How to Reassemble a OCV Unit Follow the steps below to reassemble the OCV after the old filter and gaskets have been removed OCV Motor Filter Assembly Fit onto Shaft Turn to Slide Ensure Shaft Protrudes 1 1 Install the new O ring gasket on the motor and the new face gasket on the OCV to engine interface of the OCV housing Lubricate the two gaskets with clean engine oil 2 Orient the motor so ...

Страница 79: ... and inlet outlet hoses Fuel Filter Perform these maintenance procedures according to the Preventative Maintenance Schedule WARNING When removing the fuel filter a quanti ty of fuel will escape DO NOT smoke or allow an open flame in close prox imity Failure to do so could ignite a fire or cause an explosion which could result in serious injury to you and or bystanders Failure to comply may re sult...

Страница 80: ...le Biodiesel For information on alternative fuels such as biodiesel and additional information for fuel recommendations and specifications see Warranty and the Use of Biodiesel Fuel on page 65 Fuel Filter Removal Primary and Secondary Complete the following steps to remove the fuel filter s Fuel Filter Module 1 2 3 1 Primary filter housing cap installed 2 Secondary filter housing cap installed 3 P...

Страница 81: ... 4 6 3 5 7 1 Primary Filter Cap 2 Secondary Filter Cap 3 Primary Filter 4 Secondary Filter 5 Primary Filter Housing 6 Secondary Filter Housing 7 Manual Priming Pump ENGINE MAINTENANCE Maintenance Procedures Y53 1166 1M1 10 2020 79 2 ...

Страница 82: ...to the engine fuel system NOTE The fuel filter cartridge is a disposable filter and must not be cleaned and reused Dispose of the filter as chemi cal waste 2 Loosen the fuel tank cap to relieve any pressure in the fuel tank 3 Loosen primary fuel filter cap until O Ring is visible 4 Within 30 seconds loosen secondary fuel filter cap until O Ring is visible 5 Wait 2 minutes for the fuel to completel...

Страница 83: ...that the diesel fuel and your hands are clean NOTE Part number 5 is the water drain spi got used in the Water Draining Proce dure NOTE Depending on the vehicle s fuel sys tem configuration the fuel filter housing may not completely drain of fuel If this is the case take care when installing the new filter as this may cause fuel to spill from the filter housing Priming the Fuel System To start the ...

Страница 84: ...m for leakage while idling Then turn the engine OFF and check the system again for leakage 6 If the engine does not start within this time repeat steps two and three until the engine starts If the engine still does not start allow the starter to cool down for at least 5 minutes before repeating the procedure WARNING DO NOT loosen any fuel line fittings in order to bleed the fuel system of air The ...

Страница 85: ...l injuries The pressure cap horizontally mounted on the surge tank should never be opened Failure to comply may result in death personal injury equipment or property damage Coolant Antifreeze Condition Perform these maintenance procedures according to the Preventative Maintenance Schedule NOTE Test the engine coolant at least twice per year to determine if the coolant must be replaced If it is det...

Страница 86: ...Maintenance Schedule 1 Check the following radiator hose conditions Deterioration signs of leaking Hose clamp torque Replace Coolant Filter Perform these maintenance procedures according to the Preventative Maintenance Schedule Coolant Shutoff Valve 1 Slowly loosen the radiator cap to relieve any pressure in the cooling system 2 Close the coolant filter shutoff valve by rotating the hex key clockw...

Страница 87: ... turn 3 Turn the shutoff valve to the OPEN position 4 Reinstall the radiator fill cap 5 Start the engine and run at idle speed for several minutes Check for leaks Special Fill Instruction CAUTION Follow the procedure below to fill cool ant Failure to follow this procedure and maintain proper coolant level can cause engine damage 3 2 1 1 Fill cap service point 2 Pressure cap never to be removed 3 F...

Страница 88: ...dle to Low RPM and top off surge tank to full cold line 9 Allow engine to cool and top off surge tank full cold line if necessary 10 Replace the Fill Cap 11 If Low Coolant Alarm is consitently triggering allow engine to cool to outside air temperature then top off surge tank to full cold line NOTE If the coolant frequently needs top ping up or there are any signs of cool ant leakage consult a PACC...

Страница 89: ...1 2 7 6 1 Accessory belt 2 Fan belt not present with crank mounted fan on T680MLU MX 11 and LHP MX 13 3 Water pump 4 Tensioners 5 Engine dampener 6 A C compressor 7 Alternator ENGINE MAINTENANCE Maintenance Procedures Y53 1166 1M1 10 2020 87 2 ...

Страница 90: ... result in death or personal injury Follow these guidelines to check your engine fan With the engine shut off check the fan hub bearings for looseness loss of lubricant and any abnormal conditions e g fan belt misaligned or excessive wear damage etc With the engine idling and the hood open stand at the front of the vehicle Listen for any noises coming from the fan hub Bearings that have lost lubri...

Страница 91: ...e image Flex Bar on Tensioner V belt and Fan Drive Belt 4 Rotate the flex bar as shown in the diagram to relieve belt tension 5 With the belt tensioner pressure relieved remove the poly V belt from the pulleys The tensioner can be temporarily blocked with a 0 16 0 2 in 4 5 mm thick pin bore This facilitates removal and installation of the poly V belt 6 After removing the belt carefully allow the b...

Страница 92: ...t alternator air conditioning compressor drive and coolant pump drive belts 1 Remove the poly V belt from the fan and coolant pump drive as described in Poly V belt and Fan Drive Belt Removal NOTE Removing the fan blade is not neces sary if only the accessory belt is re moved After removing the fan drive belt from its pulleys the accessory belt can be removed over the fan blade 2 Next place a flex...

Страница 93: ...Aftertreatment System Diesel Particulate Filter DPF Service Strategy There are two DPF cleaning strategy options dry cleaning and wet cleaning Some chassis can follow either strategy but only one strategy may be used They are not interchangeable It is the vehicle owner s responsibility to choose one of the two options and maintain the DPF using that one strategy The wet cleaning service interval i...

Страница 94: ...nk Small DEF Tank Filter Access 1 Replace the aftertreatment DEF dosing unit DEF module filter according to the maintenance schedule 2 From the bottom of the tank remove the cover plate by removing the various fasteners holding it on then allow the cover plate to drop down Air System Air Intake System Engine heat vibration and age combine to loosen air intake connections and cause ENGINE MAINTENAN...

Страница 95: ... clamps for tightness Clearance to other components Charge Air Cooler Perform these maintenance procedures according to the Preventative Maintenance Schedule 1 Check and correct the following components of the charge air cooler Cracked tubes or header Clogged fins tubes Hose pipe condition deterioration signs of leaking Hose clamp torque Engine Air Filters The following service information is basi...

Страница 96: ... to access the air filter housing 3 Loosen the hardware that holds the housing cap to the main filter enclosure 4 Pull the air filter housing cap away from the main enclosure to access the filter 5 Visually inspect the filter housing enclosure and hardware for damage 6 The filter can be removed by gently pulling it directly out of the main enclosure Be careful not to drop or tap the filter on the ...

Страница 97: ... the engine operating check for leaking manifold or flange gaskets High Frequency Vibration Vibration may indicate turbo rotor imbalance Have your dealer investigate this immediately If you detect any deficiencies take the vehicle to an authorized dealer for servicing Delay could lead to severe and expensive damage to your vehicle Exhaust System The exhaust system is part of the noise and emission...

Страница 98: ...ures according to the Preventative Maintenance Schedule Check for the following 1 Inspect both mount and leg fasteners Check for loose or broken bolts Replace as necessary 2 Check mount and leg for fractures breaks or deformation Replace as necessary 3 Check for complete insertion of motor mount Replace as necessary CAUTION DO NOT re torque or reuse existing flange head bolts These bolts are fac t...

Страница 99: ...ore than 20 idle time Severe Duty Vocational 39 Initial adjust at 60 000 mi 96 000 km 1 600 hours at 360 000 mi 576 000 km 9 600 hours then every 300 000 mi 480 000 km thereafter Pick up Delivery Refuse Engine Identification Component Locations 39 Vocational vehicle applications include Agriculture Concrete Mixers Construction Crane Dumps Emergency Fire Heavy Equipment Loggers Mining Oil Field Sno...

Страница 100: ...Engine Right Side 1 2 3 5 4 1 Coolant filter 2 Centrifugal bypass oil filter 3 Full flow oil filter 4 Oil cooler 5 Turbocharger ENGINE MAINTENANCE Engine Identification 98 Y53 1166 1M1 10 2020 2 ...

Страница 101: ...ter housing 7 Compressor BRAKES 8 Starter 9 Power steering pump 10 A C Compressor 11 Alternator EPA Label The EPA label provides important facts about the engine This label is located on top of the engine valve cover or on the mixer manifold The engine EPA label must not be changed unless approved by PACCAR ENGINE MAINTENANCE Engine Identification Y53 1166 1M1 10 2020 99 2 ...

Страница 102: ...hat are found on the EPA label include the following Fuel rate Idle speed Maximum rated speed Valve lash Maximum power rating Date of manufacture Engine displacement PACCAR MX EPA Label XXX X X XX X XX X XX X XX XXXX XXX XXX XXX XXX ENGINE MAINTENANCE Engine Identification 100 Y53 1166 1M1 10 2020 2 ...

Страница 103: ...ENGINE MAINTENANCE Engine Identification Y53 1166 1M1 10 2020 101 2 ...

Страница 104: ...Chapter 3 ENGINE WARRANTY United States and Canada Engine Warranty 103 ENGINE WARRANTY 102 Y53 1166 1M1 10 2020 3 ...

Страница 105: ... the first purchaser or first lessee for the following engine parts Cam Follower Assemblies Camshaft Camshaft Gear Camshaft Idler Gear Connecting Rod Assemblies Crankshaft Crankshaft Gear Cylinder Block Casting Cylinder Head Bolts Cylinder Head Casting Flywheel Housing Lube Pump Gear Main Bearing Bolts Thermostat Housing Water Pump Housing PACCAR and Owner Responsibilities PACCAR Responsibilities ...

Страница 106: ...dy against PACCAR and the selling dealer arising from your purchase and use of this engine is limited to the repair or replacement of warrantable failures at authorized United States and Canadian PACCAR engine dealers or an authorized PACCAR engine facility where applicable subject to PACCAR s time mileage and hour limitations of the engine warranty The maximum time mileage and hour limitations of...

Страница 107: ...service is required as part of a warrantable repair PACCAR DOES NOT COVER WEAR OR WEAROUT OF COVERED PARTS THIS WARRANTY AND THE EMISSION WARRANTY SET FORTH HEREINAFTER ARE THE SOLE WARRANTIES MADE BY PACCAR IN REGARD TO THESE ENGINES THIS LIMITED WARRANTY IS THE SOLE WARRANTY MADE BY PACCAR AND THE SELLING DEALER EXCEPT FOR THE ABOVE LIMITED WARRANTY PACCAR AND THE SELLING DEALER MAKE NO OTHER WA...

Страница 108: ...s also responsible for providing proof that all recommended maintenance has been performed Before the expiration of the applicable warranty the owner must notify a PACCAR authorized engine dealer of any warrantable failure and make the engine available for repair by such facility The warrantable failure must be brought to the attention of a PACCAR authorized engine dealer within 30 days of discove...

Страница 109: ...age or 100 000 miles 160 000 kilometers from the date of delivery of the engine to the first purchaser or first lessee whichever occurs first Before a claim for excessive oil consumption will be considered the owner must submit adequate documentation to show that consumption exceeds PACCAR published standards Failures of belts and hoses supplied by PACCAR are covered for the first year from the da...

Страница 110: ...ure and that it is free from defects in material or factory workmanship which would cause it not to meet these regulations within the longer of the following periods A Five years or 100 000 miles 160 000 kilometers of operation whichever occurs first as measured from the date of delivery of the engine to the first purchaser or first lessee or B The base engine warranty If the vehicle in which the ...

Страница 111: ...el or diesel exhaust fluid or by water dirt or other contaminants in the fuel oil or diesel exhaust fluid Failure of replacement parts used in repairs due to the above non warrantable conditions is not warrantable PACCAR is not responsible for non engine repairs downtime expenses cargo damage fines all applicable taxes all business costs or other losses resulting from a warrantable failure PACCAR ...

Страница 112: ...ntable condition exists PACCAR will repair your engine at no cost to you including diagnosis parts and labor Owner s Warranty Responsibilities As the engine owner you are responsible for the performance of the required maintenance listed in your PACCAR operator s manual You are responsible for presenting your engine to an authorized PACCAR engine dealer as soon as a problem exists The warranty rep...

Страница 113: ...e dealer using new or genuine PACCAR approved rebuilt parts and assemblies PACCAR will repair any of the emission control parts found by PACCAR to be defective without charge for parts or labor including diagnosis which results in determination that there has been a failure of a warranted emission control part Emergency Repairs In the case of an emergency where an authorized PACCAR engine dealer i...

Страница 114: ...in PACCAR Operator s Manuals PACCAR does not warrant antifreeze lubricants filters filter elements or any other part which is considered a maintenance item PACCAR does not warrant services to remove ash from the DPF either at or before a regular service interval as indicated in the maintenance schedule or when the system indicates that the DPF requires cleaning unless the service is required as pa...

Страница 115: ...ENGINE WARRANTY United States and Canada Engine Warranty Y53 1166 1M1 10 2020 113 3 ...

Страница 116: ... Controls 17 Coolant Filter Installation 85 Coolant Level 33 Cooling Fan 33 Cooling System 83 Cooling system maintenance 59 Cooling System Overheating 12 Crank Mounted Fan 89 Crankshaft Vibration Damper 96 D Diesel Exhaust Fluid 34 Diesel Exhaust Fluid DEF Lamp 16 Diesel Exhaust Fluid filter 92 Diesel Fuel 77 Diesel Particulate Filter DPF Warning Light 15 Drive Belts 86 Driving 18 E ELC 83 Electri...

Страница 117: ...le Time 300 000 mi 480 000 km 6 750 hrs 36 mo 3 yrs 42 Greater than 20 Idle Time 350 000 mi 560 000 km 7 850 hrs 48 mo 4 yrs 42 Greater than 20 Idle Time 450 000 mi 725 000 km 13 500 hrs 48 mo 4 yrs 43 Greater than 20 Idle Time 50 000 mi 80 000 km 1 500 hrs 12 mo 1 yr 40 Greater than 20 Idle Time 600 000 mi 965 000 km 18 000 hrs 72 mo 6 yrs 43 Greater than 20 Idle Time 750 000 mi 1 200 000 km 24 0...

Страница 118: ... 52 Poly V belt and Fan Drive Belts 89 Poly V belt and Fan Drive Install 89 Poly V belt Alternator Air Conditioning Compressor Drive and Coolant Pump Drive Install 91 Poly V belt Alternator Air Conditioning Compressor Drive and Coolant Pump Drive Removal 90 Preventative Maintenance Schedule Intervals 34 Priming the Fuel System 81 R Radiator Fill Procedure 85 Radiator Hoses 84 Recommendations to av...

Страница 119: ...der hood air filter housing 93 94 V Valve Adjustment Interval 96 Visual Inspection of Engine 34 W Warranty and the Use of Biodiesel Fuel 65 Warranty and the Use of Renewable and Other Paraffinic Diesel Fuels 65 WIF Water In Fuel Fuel Filter Module 15 Index ...

Страница 120: ......

Страница 121: ...ate of California to cause cancer and birth defects or other reproductive harm Always start and operate the engine in a well ventilated area If in an enclosed area vent the exhaust to the outside Do not modify or tamper with the exhaust system Do not idle the engine except as necessary For more information go to www P65warnings ca gov diesel WARNING ...

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