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XL-FW10028UM-en-US Rev B · 2021-08-04 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF,
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.

Troubleshooting

19. Troubleshooting



POSSIBLE CAUSE

SOLUTION

Attempting to couple too fast.

Couple in accordance with the procedures in Section 7.

The trailer may be too high; the kingpin

is not entering the locks properly.

Lower the trailer in accordance with the manufacturer's instructions.

The locks are closed.

If equipped with a manual secondary lock, pull the secondary release

handle and hook on the top plate casting. Pull the release handle all

the way out. If equipped with air release, set the tractor brakes and

actuate the fifth wheel control valve/switch to open the locks.
The locks may be open even if they still appear closed. Check to make

sure the nut and washer at the front of the fifth wheel are not snug

against the fifth wheel and that the release handle is in the extended

“open” position. If both of these conditions exist, you will still be able

to couple the fifth wheel. Movement of the kingpin into the fifth wheel

lock jaws will allow them to open and successfully couple.

Accumulated rust or grime are

interfering with the lock operation.

Thoroughly clean the fifth wheel and re-lubricate in accordance

with the procedures in Section 13.

The locks are adjusted too tightly.

Check lock adjustments in accordance with the procedures

in Section 15.

The locks may be damaged.

The fifth wheel MUST be rebuilt using the appropriate service kit.

The release handle may be damaged or bent. Replace the release handle using the appropriate service kit.

The air cylinder tube and/or shaft (on air

release-equipped fifth wheels) may be

dented, bent, or otherwise damaged.

Replace the air cylinder using the appropriate service kit.

The air release system on the tractor is

not functioning properly.

Disconnect the air line at the air cylinder and operate the fifth

wheel manually. If the fifth wheel functions properly, contact

the truck dealer/service for instructions on troubleshooting the

air release control system.

The yoke shaft may be damaged or bent

from improper coupling.

The fifth wheel MUST be rebuilt using the appropriate service kit.

Bent kingpin, damaged upper coupler,

or improper use of lube plates may be

interfering with lock movement.

Check the kingpin and upper coupler plate as detailed in

HOLLAND

Service Bulletin XL-SB020. Repair/replace as

required. Remove any improperly installed or improperly

specified lube plates. Refer to HOLLAND

Service Bulletin

XL-SB004-01 for lube plate warnings.

Difficult to Couple to Trailer:



POSSIBLE CAUSE

SOLUTION

Warped trailer upper coupler plate.

Check the upper coupler plate for flatness and replace, if

necessary. Refer to HOLLAND

Service Bulletin XL-SB020.

Hard Steering or Binding:

Содержание Low Lube FW33 Series

Страница 1: ...Owner s Manual FW31 NoLube and FW33 Low Lube Series Fifth Wheels Operation Maintenance and Troubleshooting Procedures XL FW10028UM en US Rev B ...

Страница 2: ... not followed could lead to hindered product performance Used without the safety alert symbol indicates a potentially hazardous situation which if not avoided could result in property damage Indicates a potentially hazardous situation which if not avoided could result in minor or moderate injury Indicates a potentially hazardous situation which if not avoided could result in death or serious injur...

Страница 3: ...nd Caution hazard alert messages The alerts provide information that can help prevent serious personal injury damage to components or both Failure to follow the instructions and safety precautions in this manual could result in improper servicing or operation leading to component failure which if not avoided could result in death or serious injury All fifth wheel installation and maintenance MUST ...

Страница 4: ...ela ajustadas contra la quinta rueda Écrou et rondelle serrés contre la sellette 3 Locks completely closed around kingpin Seguros completamente cerrados alrededor del perno rey Mâchoires complètement fermées sur le pivot SIEMPRE inspeccione la quinta rueda después de acoplar el tractocamión al remolque Si no acopla adecuadamente el tractocamión y el remolque podría ocasionar la separación del trac...

Страница 5: ...NOT considered part of the public highway system falls under this heading 4 Approved applications Van Trailers Tanker Dry Bulk Trailers Flatbed Stretch Pole Trailers End Dump Framed Trailers FW33 only End Dump Frameless Trailers FW33 only Bottom Dump Trailers FW33 only Lowboy Trailers FW33 only B Trains Van Flatbed Stretch Trailers B Trains Tank Bottom Dump Trailers B Trains End Dump Trailers FW33...

Страница 6: ... the proper operation of the fifth wheel 4 The attachment of lifting devices 5 The transport of loads in excess of rated capacity 6 In off road applications 7 Applications other than those recommended in the SAF HOLLAND Fifth Wheel Catalog Specification Guide Document No XL FW10066SG en US available on the internet at www safholland us Use of fifth wheel in non intended applications could result i...

Страница 7: ...the tractor parking brake 5 Visually inspect the fifth wheel throat to ensure that the locks are completely open and ready to accept the kingpin Figure 7 6 If the locks are NOT completely open Figure 7 check the following a Nut and washer at the front of the fifth wheel are NOT snug against the fifth wheel b Release handle is in the extended open position If both of these conditions exist you will...

Страница 8: ... wheel during tight turning If it DOES NOT at a minimum the rear edges should be chamfered or radiused edges 13 Ensure that any upper coupler residual grease is free of heavy course grit 14 Ensure that the upper coupler fifth wheel contact surface is free of rust and is NOT painted The area should be conditioned with a rust inhibitor such as a light oil 15 Verify that the kingpin is NOT obstructed...

Страница 9: ...eling in a straight line slowly back the tractor to the trailer STOP the tractor before making contact with the trailer Figure 11 IMPORTANT DO NOT make contact between the fifth wheel and trailer or damage to the lube plates may occur 4 Place the tractor into neutral and set the parking brake 5 Completely exhaust the air from the tractor suspension ensuring that the fifth wheel is below the contac...

Страница 10: ...wer the trailer until the fifth wheel makes contact IMPORTANT If the trailer is too high the kingpin will NOT properly connect with the lock jaws Failure to couple with the trailer at the proper height could result in improper coupling allowing tractor trailer separation which if not avoided could result in death or serious injury IMPORTANT NEVER inflate the tractor suspension when the kingpin is ...

Страница 11: ...pper coupler plate and the fifth wheel Figure 17 c Fifth wheel locks MUST be closed around the trailer kingpin with 1 4 6 35 mm or less gap visible between the lock jaws Figure 18 16 If proper coupling has NOT been achieved repeat the coupling procedure Failure to properly couple the tractor and trailer could result in tractor trailer separation while in use which if not avoided could result in de...

Страница 12: ... may result in damage to the lube plates 1 Position the tractor and trailer in straight alignment on firm level ground clear of obstacles and persons 2 Set the trailer brakes 3 Slowly back the tractor tightly against the trailer to relieve pressure on the fifth wheel locks 4 Place the tractor into neutral and set the parking brake IMPORTANT DO NOT exhaust air from the tractor suspension before unc...

Страница 13: ...lease handle Figure 22 If air release is equipped pull and hold the fifth wheel release valve until the locking mechanism opens and locks into place 10 Ensure that the locking mechanism is open and the yoke shaft is in the out position Figure 23 11 Release the tractor parking brake and slowly pull forward 12 18 306 457 mm to disengage the kingpin from the fifth wheel The fifth wheel should be betw...

Страница 14: ...ion to return to ride height Figure 26 9 Positioning Sliding Fifth Wheels NEVER reposition a sliding fifth wheel while the tractor trailer is in motion or on public roads Failure to avoid could cause loss of vehicle control or tractor trailer separation which if not avoided could result in death or serious injury 1 Position the tractor and trailer in straight alignment on firm level ground clear o...

Страница 15: ...ngaged Figure 28 ILS Sliders Figure 29 Severe Duty Sliders Figure 30 Traditional Sliders 5 Release the tractor parking brake while keeping the trailer brakes engaged 6 Slowly drive the tractor forward or backward to position the fifth wheel Stop the tractor at the desired position 7 Re engage the slide locking plungers by moving the cab switch to the lock position Figure 31 If equipped with manual...

Страница 16: ... have been re engaged by performing a pull test Figure 35 IMPORTANT DO NOT operate the vehicle if the plungers are NOT fully engaged locked Failure to properly engage the plungers and slide base could cause loss of vehicle control which if not avoided could result in death or serious injury Figure 35 LOCK TRAILER BRAKES AND PULL FORWARD WITH TRACTOR Operation Instructions Figure 31 AIR OPERATED MO...

Страница 17: ...edures IMPORTANT All maintenance MUST be performed while the tractor is uncoupled from the trailer Failure to properly maintain the fifth wheel could result in tractor trailer separation which if not avoided could result in death or serious injury 1 For steps required for fifth wheel maintenance refer to Step 1 of Section 6 and all steps in Sections 11 through 18 NOTE Removal of the fifth wheel to...

Страница 18: ...ovides long wear life and corrosion protection eliminating the need for lubrication The locking mechanism of a new FW31 Series fifth wheel assembly has a thin layer of grease applied by SAF HOLLAND to aid the components for an initial break in period Grease will not adversely affect a FW31 Series NoLube fifth wheel IMPORTANT If the FW31 Series NoLube fifth wheel operates in snowy or icy winter con...

Страница 19: ...d with air release follow Steps c through h for lubrication of the air cylinder c Inspect the air cylinder tube and shaft for dents bending or other damage and replace as necessary d Activate the air cylinder control to extend the piston and shaft to its full travel length Figure 39 e Clean the exposed piston shaft with penetrating oil and a clean shop towel DO NOT use any abrasives on the exposed...

Страница 20: ...r 2 4 drops of air tool oil to the cylinder through the supply fitting Re install the supply air line Figure 43 3 Activate and de activate the air cylinder two to three 2 3 times to work the air tool oil into the cylinder and onto the piston and verify proper operation Severe Duty Sliders 1 Spray the spring covered piston shaft thoroughly with penetrating oil Figure 44 IMPORTANT DO NOT use any abr...

Страница 21: ...l into the cylinder and onto the piston and verify proper operation 15 Fifth Wheel Adjustment Fifth wheel adjustments should be performed at a minimum of every 60 000 miles or if excessive movement between the kingpin and fifth wheel is noticed while driving the vehicle IMPORTANT Excessive movement between the tractor and trailer can affect vehicle handling Failure to maintain proper fifth wheel a...

Страница 22: ...ing it difficult to turn by hand Figure 49 5 Turn the adjustment nut one 1 additional turn clockwise to further compress the rubber washer Figure 50 IMPORTANT Over compressing the rubber washer with additional turns will take the fifth wheel out of proper alignment and degrade the performance of the fifth wheel 6 Repeat the coupling and uncoupling process with the lock tester at least twice to hel...

Страница 23: ...s Verify that the locking plungers have engaged properly Figures 52 and 53 3 Tighten the adjustment bolt until it contacts the rack 4 Turn the adjustment bolt clockwise an additional 1 2 turn then tighten the lock nut securely If the locking plungers DO NOT release fully to allow the fifth wheel to slide Check the air cylinder for proper operation Replace if necessary Check the locking plunger adj...

Страница 24: ...e vertical movement the top plate should be removed for further inspection Refer to Section 11 for top plate removal instructions Upshock Cushions 1 Standard Cushion Figure 56 Replace if The hole is elongated to more than 1 3 8 34 9 mm The upshock cushions are cracked cut or otherwise severely damaged 2 ILS Style Cushion Figure 57 Replace if The hole is elongated to more than 1 1 2 38 1 mm The ups...

Страница 25: ...verely chipped cracked or gouged Brackets 1 Standard Bracket Figure 59 and ILS Style Bracket Figure 60 Replace if The thickness of the bracket cap at the top measured approximately 1 4 6 4 mm in from the edge is less than 3 8 9 5 mm The brackets are gouged cracked or otherwise severely damaged Figure 60 Figure 59 Figure 58 STANDARD BRACKET REPLACE BRACKETS IF 3 8 9 5 mm OR LESS EITHER SIDE MEASURE...

Страница 26: ...vice 3 Install the bracket pins through the fifth wheel casting and mounting base and secure by installing the bracket pin retention bolts and nuts Figure 62 Torque the retention fasteners to 50 60 ft lbs 68 81 N m 18 1 No Tilt Fifth Wheels After installing the top plate onto the mounting base re install the no tilt shaft assembly by orienting the top plate so the top plate and mounting base no ti...

Страница 27: ...ce with the procedures in Section 13 The locks are adjusted too tightly Check lock adjustments in accordance with the procedures in Section 15 The locks may be damaged The fifth wheel MUST be rebuilt using the appropriate service kit The release handle may be damaged or bent Replace the release handle using the appropriate service kit The air cylinder tube and or shaft on air release equipped fift...

Страница 28: ... Accumulated rust or grime are interfering with the lock operation Thoroughly clean the fifth wheel and re lubricate in accordance with the procedures in Section 13 The locks are adjusted too tightly Check lock adjustments in accordance with the procedures in Section 15 The release handle will not stay out or must be held out when unlocking Replace the cam and release handle spring using the appro...

Страница 29: ...r Right Hand RK 08415 1 Small Parts Kit including Lock Adjustment Tag and Hardware RK 351 12416 Lube Plate Inserts Pair RK 331 1 Pocket Inserts Pair RK PKT 2 20 Rebuild and Replacement Kits POSSIBLE CAUSE SOLUTION The kingpin is too short or the lube plates are improperly installed Check the kingpin and upper coupler plate as detailed in HOLLAND Service Bulletin XL SB020 Repair replace as required...

Страница 30: ...30 XL FW10028UM en US Rev B 2021 08 04 Amendments and Errors Reserved SAF HOLLAND Inc SAF HOLLAND HOLLAND SAF and logos are trademarks of SAF HOLLAND S A SAF HOLLAND GmbH and SAF HOLLAND Inc Notes ...

Страница 31: ...31 XL FW10028UM en US Rev B 2021 08 04 Amendments and Errors Reserved SAF HOLLAND Inc SAF HOLLAND HOLLAND SAF and logos are trademarks of SAF HOLLAND S A SAF HOLLAND GmbH and SAF HOLLAND Inc Notes ...

Страница 32: ...inal component assembly SAF HOLLAND Original Parts are tested and designed to provide maximum performance and durability Will fits look alikes or worse yet counterfeit parts will only limit the performance potential and could possibly void SAF HOLLAND s warranty Always be sure to spec SAF HOLLAND Original Parts when servicing your SAF HOLLAND product SAF HOLLAND INC 1950 Industrial Blvd Muskegon M...

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