Generac Power Systems MLT4150 Owner'S Manual Download Page 26

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Owner’s Manual for Mobile Light Tower

Maintenance

Check  the  coolant  level  daily  by  inspecting  the
level  in  coolant  overflow  jug  located  near  the
radiator. Refer to the engine operator’s manual for
coolant  recommendations  and  proper  mixture.
Normal  operating  level  is  between  the  ‘full’  and
‘add’ markings on the overflow jug.

AFTER 

ENGINE 

IS 

STOPPED 

AND

COMPLETELY  COOL

,  coolant  may  be  added

directly to the coolant overflow jug.

Check  the  oil  level  daily.  Refer  to  the  engine
operator’s manual for the appropriate oil specification.
Verify the oil is correct for special operating conditions
such as a change in season or climate.

DO NOT

 start the unit if the engine oil level is below

the add mark on the dipstick.

Normal  operating  level  is  in  the  cross-hatch  pattern
between the full and add markings on the dipstick.

Add oil only if the oil level is below the add mark on
the bottom of the cross-hatch pattern on the dipstick.

DO NOT OVERFILL

 the crankcase.

Check the fuel level.

If the unit is connected to a remote start or transfer
switch, make sure the remote switch is also off and
tagged.

NOTE: 

If the engine was run out of fuel or the fuel tank

was drained, it may be necessary to bleed the fuel lines.
Refer to the engine operator’s manual supplied with the
unit.

Basic Maintenance Schedule

Refer to the original equipment manufacturer’s operating
manual for a complete list of maintenance requirements.
Failure to comply with the procedures as described in the
engine  operator’s  manual  will  nullify  the  warranty,
decrease performance and cause equipment damage or
premature  equipment  failure.  Maintenance  records  may
be required to complete a warranty request.
Use  the  schedule  in  the  following  table  as  a  guide  for
regular  maintenance  intervals.  For  additional  or
replacement  copies  of  the  engine  operator’s  manual,
contact a GMASD.

*

Perform after the initial 50 hours of operation, then on the regularly scheduled interval indicated in the schedule above.

**

Certain conditions may require the fuel tank to be drained and cleaned more often. When operating in extremely 
dusty conditions, clean the fuel tank as often as necessary.

^

Applies to units with serial number 1506075 and higher.

Basic Maintenance Guide—Mitsubishi Engine

Item

Daily

50
Hr

250 

Hr

400

Hr

500

Hr

750 

Hr

1,000 

Hr

As 

Required

Check Oil Level

Check Coolant Level

Check Fuel Level

Check Tire Pressure

Check All Electrical Connections

Inspect Radiator Fins For Debris, Clean As Required

Inspect Light Tower Winch For Proper Operation

Fuel Tank - Drain Water

Check Air Cleaner

Belt And Belt Tension - Inspect And Adjust

Replace Fuel Filter 

Drain And Clean Fuel Tank

**

Check Glow Plugs

Lubricate Leveling Jacks

Replace Engine Oil And Oil Filter 

*^

Bolts And Nuts On The Engine - Retighten

*

Replace Heated Fuel Filter (If Equipped)

Inspect Engine Starting Battery

Air Cleaner Element - Clean, Check And Replace

Fuel System - Bleed Air

Water Sedimenter - Drain Water

Summary of Contents for MLT4150

Page 1: ...SAVE THIS MANUAL FOR FUTURE REFERENCE For technical assistance contact www generacmobile com Technical Service 1 800 926 9768 Owner s Manual Light Tower MLT4150 SN 3004595385 and higher 004645 ...

Page 2: ...r safe operation is performed promptly and to have the equipment checked periodically by a GMASD Normal maintenance service and replacement of parts are the responsibility of the owner or operator and as such are not considered defects in materials or workmanship within the terms of the warranty Individual operating habits and usage may contribute to the need for additional maintenance or service ...

Page 3: ...Glow Plug Indicator 11 G Hour Meter 11 Section 3 Operation Unit Set Up 13 Prestart Checklist 14 Raising the Mast 14 Emergency Stop Switch 15 Starting the Unit 15 Automatic Shutdown 16 Light Operation 16 Auxiliary Outlets 17 Wet Stacking 17 Voltage Regulator 17 Engine Derating 17 Shutting Down the Unit 18 Lowering Mast 18 Removing Lights for Transportation 18 Towing the Unit 19 Lifting the Unit 19 ...

Page 4: ... s Manual for Mobile Light Tower AC Wiring Receptacle Panel Options If Equipped 1 of 2 32 AC Wiring Receptacle Panel Options If Equipped 2 of 2 33 DC Wiring 34 DC Wiring Options If Equipped 35 Trailer Lights 36 ...

Page 5: ... service find service When contacting a GMASD about parts and service always supply the complete model number and serial number of the unit as given on its data decal located on the unit Record the model number and serial numbers in the spaces provided on the inside front cover of this manual Safety Rules The manufacturer cannot anticipate every possible circumstance that might involve a hazard Th...

Page 6: ...Failure to do so could result in death or serious injury 000105 DANGER Explosion and Fire Fuel and vapors are extremely flammable and explosive Add fuel in a well ventilated area Keep fire and spark away Failure to do so will result in death or serious injury 000147 WARNING Risk of Fire Unit must be positioned in a manner that prevents combustible material accumulation underneath Failure to do so ...

Page 7: ...188 DANGER Electrocution Do not wear jewelry while working on this equipment Doing so will result in death or serious injury DANGER Electrocution DO NOT use the unit if electrical cord is cut or worn through Doing so will result in death or serious injury 000263a 000188 DANGER Electrocution Do not wear jewelry while working on this equipment Doing so will result in death or serious injury 000137a ...

Page 8: ...ng Ambient air temperature is above 120 F 49 C Operating Safety Positioning the Unit The area immediately surrounding the unit should be dry clean and free of debris Position and operate the unit on a firm level surface If the unit is equipped with a frame grounding stud follow the National Electrical Code NEC state and local regulations when connecting Starting the Unit 000192 DANGER Explosion an...

Page 9: ...s and warn of dangers and hazards Wear heavy leather gloves when handling winch cables Never let cables slip through bare hands Only use mild soap and water to clean the lens covers Other chemicals may damage the lens covers Make sure slings chains hooks ramps jacks and other types of lifting devices are attached securely and have enough weight bearing capacity to lift or hold the equipment safely...

Page 10: ...d working properly Wheels and Tires Check trailer tires for wear and proper inflation Verify wheel lug nuts are present and tightened to the specified torque Safe Towing Techniques Practice turning stopping and backing up in an area away from heavy traffic prior to transporting the unit Maximum recommended speed for highway towing is 45 mph 72 km h Recommended off road towing speed is 10 mph 16 km...

Page 11: ... 56 4 213 Coolant Incl Engine qt L 11 6 11 0 Oil Incl Filter qt L 8 5 8 0 Generator Make Model Marathon Electric 333CSA3024 Type Insulation Brushless F Output kW kVA 15 0 15 0 Output Voltage V 120 240 1Ø Output Amperes 120V 240V A 125 63 Frequency Hz 60 Power Factor 1Ø 1 Sound 23 ft At Prime dB A 71 AC Distribution Circuit Breaker Size A 70 Voltage Regulation 1 Voltages Available 1Ø 120 240 Lighti...

Page 12: ... Mobile Light Tower General Information Unit Dimensions Figure 2 1 Unit Dimensions Specifications are subject to change without notice A B C D E 170 in 4 32 m 70 in 1 78 m 30 ft 9 14 m 68 in 1 73 m 140 in 3 56 m A B C D E ...

Page 13: ...Manufactured by Generac Mobile Products LLC 920 361 4442 800 926 9768 VIN Tag TIRE AND LOADING INFORMATION RENSEIGNEMENTS SUR LES PNEUS ET LE CHARGEMENT SEE OWNER S MANUAL FOR ADDITIONAL INFORMATION VOIR LE MANUEL DE L USAGER POUR PLUS DE RENSEIGNEMENTS MANUFACTURED BY FABRIQUE PAR Generac Mobile Products LLC DATE 00 0000 GVWR PNBV 000KG 0000LBS COLD INF PRESS PRESS DE V I N N I V 0000000000000000...

Page 14: ... knob G Emergency stop switch B Central lifting point H Radiator inside unit C Engine exhaust I Upper forklift pocket 2 locations D Battery inside unit J Fuel fill behind door E Lower Forklift pocket 2 locations K Outrigger 2 locations F Control panel inside unit L Engine access door LEFT SIDE RIGHT SIDE A B C E F G H J K L D I ...

Page 15: ... circuit breaker is supplied for each light D Ballast Indicator Lights Indicates power from the ballast to each light E Ignition Key Switch Keyed switch operates glow plugs starts and stops engine F Glow Plug Indicator Indicates operation of the engine glow plugs Mitsubishi version shown G Hour Meter Keeps track of engine hours H 10A Circuit Breaker I O I O I O I O ON ON ON ON TURN MAIN BREAKER OF...

Page 16: ...12 Owner s Manual for Mobile Light Tower General Information This page intentionally left blank ...

Page 17: ...ng pin snaps into place Pull locking pin on each outrigger jack and rotate each jack 90 so the jack pad is facing down Install the locking pin 6 Pull the locking pin on the rear jack F and rotate it 90º Install the locking pin Turn the jack handle clockwise to start leveling the trailer 7 Rotate each jack handle clockwise to start leveling the trailer Adjust all four jacks by rotating their handle...

Page 18: ...nd centered on each pulley Do not use if cables are kinked or beginning to unravel Check oil coolant and fuel levels For more information refer to General Maintenance Verify battery connections are secure Turn the battery disconnect switch on if equipped Check the engine fan belt tension and condition Check the engine fan belt guard Check the engine exhaust system for loose or rusted components Ve...

Page 19: ...rgency stop switch by pushing the red button in until it locks down The switch will remain closed until it is pulled out NOTE Use the emergency stop switch only when the unit must be shut down immediately For any other shut down refer to Shutting Down the Unit Figure 3 3 Emergency Stop Starting the Unit NOTE If the engine was run out of fuel or the fuel tank was drained it may be necessary to blee...

Page 20: ...n any loads Automatic Shutdown This unit is equipped with a low oil pressure and high coolant temperature automatic shutdown system This system will automatically shut off the fuel supply to stop the engine if oil pressure drops too low or the engine exceeds normal operating temperature Return the main circuit breaker to the OFF position to reset the unit after the cause of shutdown has been deter...

Page 21: ...ions Figure 3 9 Auxiliary Outlets Wet Stacking The unit is powered by a diesel engine Diesel engines are susceptible to wet stacking if lightly loaded Wet stacking occurs when an engine is run at less than 30 of its full load capacity causing unburned fuel to accumulate in the exhaust system Wet stacking can be detected by continuous black exhaust when the unit is under a constant load It can also...

Page 22: ...he mast rests in the transport cradle NOTE If the mast lock bar does not pull free activate the lower winch slightly to relieve pressure on the mast bar 5 After the mast is completely down insert the mast cradle locking pin and secure it with the safety pin NOTE Generac Mobile strongly recommends that the lights be removed from the mast and stowed for transportation See Removing Lights for Transpo...

Page 23: ... ground remove the bulbs from the light fixtures 9 Check for proper inflation of the trailer tires For maximum tire pressures refer to Specifications 10 See Figure 3 12 Check the wheel lugs Tighten or replace any lugs that are loose or missing If a tire has been removed for axle service or replaced tighten the lugs in the order shown to the following specifications Figure 3 12 Tightening Wheel Lug...

Page 24: ...20 Owner s Manual for Mobile Light Tower Operation This page intentionally left blank ...

Page 25: ...rcuit breakers are switched OFF O 3 Activate push in the emergency stop switch 4 Disconnect the negative terminal on the battery 5 Attach a Do Not Start sign to the control panel This will notify everyone that the unit is being serviced and will reduce the chance of someone inadvertently trying to start the unit Cleaning the Unit Always clean the Light Tower after each use to remove dust grease mu...

Page 26: ...manual for a complete list of maintenance requirements Failure to comply with the procedures as described in the engine operator s manual will nullify the warranty decrease performance and cause equipment damage or premature equipment failure Maintenance records may be required to complete a warranty request Use the schedule in the following table as a guide for regular maintenance intervals For a...

Page 27: ...pect Radiator Fins For Debris Clean As Required Preheating Condition Check Check Engine Starting Conditions And Noise Conditions Check Exhaust Smoke Condition Inspect Light Tower Winch For Proper Operation Replace Fuel Filter Element Clean Water Sedimenter Element Electromagnetic Pump Filter Replacement or Cleaning Check Fan Belt Tension Replace If Necessary Replace Air Filter Element Lubricate Le...

Page 28: ...pecified direction to lift The ratchet MUST make a loud clicking sound while winding the cable Lowering the Mast Referring to the Cable In Cable Out decal on the winch turn handle according to the specified direction to lower No clicking will be heard because the brake system is activated Maintenance The following procedures should be performed at least annually 1 See Figure 4 2 The gears and bush...

Page 29: ...rings remove the small rubber plug on the grease cap attach a standard grease gun fitting to the grease zerk fitting and pump grease into the fitting until new grease is visible around the nozzle of the grease gun Use only a high quality grease made specifically for lubrication of wheel bearings Wipe any excess grease from the hub with a clean cloth and replace the rubber plug when finished The mi...

Page 30: ...26 Owner s Manual for Mobile Light Tower Maintenance This page intentionally left blank ...

Page 31: ...ine Visually inspect the engine for leaks Oil pressure switch failure Refer to OEM engine operator s manual to identify corrective action High coolant temperature shutdown Low coolant level Add coolant if needed Allow engine to cool then check coolant level in radiator Restart engine and check coolant temperature Stop engine immediately if coolant temperature is 210 F 99 C or more Blockage in radi...

Page 32: ...heck the incoming voltage to the ballast by checking the available voltage on the GFCI receptacle Incoming voltage should be 120V 5V If voltage is incorrect the engine speed may need to be adjusted or generator may require service Low transformer output The voltage from the transformer should read approximately 400VAC as the light strikes induces an arc then drop and slowly rise back up to stabili...

Page 33: ...Owner s Manual for Mobile Light Tower 29 Section 6 Wiring Diagrams Mast Junction Box Wiring and Light Connections 00768 1 3 2 4 ...

Page 34: ...30 Owner s Manual for Mobile Light Tower Wiring Diagrams AC Wiring ...

Page 35: ...0 AMP G F I RECEPTACLE TO GROUND TO NEUTRAL TO MAIN BREAKER RED BLK BLK RED WHT WHT GRN GRN GRN WHT RED BLK RED RED BLK BLK RED RED RED RED BLK BLK BLK BLK GRN WHT GRN GRN GRN WHT WHT WHT 240 VOLT 50 AMP TWIST LOCK RECEPTACLE RECEPTACLE 240 VOLT 50 AMP TWIST LOCK 30 AMP CIRCUIT BREAKER 30 AMP CIRCUIT BREAKER BREAKER CIRCUIT 50 AMP BREAKER CIRCUIT 50 AMP RED RED 240 VOLT 30 AMP TWIST LOCK RECEPTACL...

Page 36: ...HT GRN GRN GRN WHT WHT WHT BLK BLK BLK BLK 240 VOLT 50 AMP TWIST LOCK RECEPTACLE 240 VOLT 30 AMP TWIST LOCK RECEPTACLE 240 VOLT 50 AMP TWIST LOCK RECEPTACLE Receptacle Panel 2x5 20R 3xL6 30R 1xL14 50 90318_ORG_07 06 11 240 VOLT 30 AMP TWIST LOCK RECEPTACLE 20 AMP CIRCUIT BREAKER 20 AMP CIRCUIT BREAKER 20 AMP G F I OUTLET 20 AMP G F I OUTLET 30 AMP CIRCUIT BREAKER 30 AMP CIRCUIT BREAKER 30 AMP CIRC...

Page 37: ...F I OUTLET 20 AMP G F I OUTLET TO GROUND TO NEUTRAL TO MAIN BREAKER RED BLK BLK RED WHT WHT GRN GRN GRN WHT RED BLK RED RED BLK BLK RED RED RED RED BLK BLK BLK BLK GRN WHT GRN GRN GRN WHT WHT WHT 240 VOLT 30 AMP TWIST LOCK RECEPTACLE BLK BLK RED RED 240 VOLT 30 AMP TWIST LOCK RECEPTACLE 240 VOLT 30 AMP TWIST LOCK RECEPTACLE 240 VOLT 30 AMP TWIST LOCK RECEPTACLE 30 AMP CIRCUIT BREAKER 30 AMP CIRCUI...

Page 38: ...34 Owner s Manual for Mobile Light Tower Wiring Diagrams DC Wiring A0000148644_A_03 06 19 1 Output Vout 2 Power supply Vcc 3 GND GND ...

Page 39: ...Owner s Manual for Mobile Light Tower 35 Wiring Diagrams DC Wiring Options If Equipped ...

Page 40: ...RAILER PLUG RIGHT TAIL TURN LAMP LAMP PLATE LICENSE MARKER LAMP RED BK BK BK BK RD WT BK SPLICE SPLICE SPADE SPADE LAMP TAIL TURN LEFT RD WT BK SPADE YL BN WT SPADE SPADE WT BK BN WT SPLICE GN RING MARKER LAMP AMBER MARKER LAMP RED BK BK BK BK SPLICE SPLICE SPADE SPADE BN WT WT WT BN BN 90341_B_12 20 13 ...

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Page 42: ...38 Owner s Manual for Mobile Light Tower Wiring Diagrams This page intentionally left blank ...

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Page 44: ...oducts com 800 926 9768 920 361 4442 Part No A0000100008 Rev A 07 22 2019 2019 Generac Mobile Products LLC All rights reserved Specifications are subject to change without notice No reproduction allowed in any form without prior written consent from Generac Mobile Products LLC ...

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