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FW35 (XA-351) FIFTH WHEEL
Trouble-Shooting Guide
Before proceeding, verify that your fifth wheel top plate
is a XA-351 model by following the 3 steps below:
➊
YOKE SHAFT EXTENDS
OUT OF THE FRONT
OF THE FIFTH WHEEL
➋
WRONG CORRECT
TROUBLESHOOTING TROUBLESHOOTING
SECTION SECTION
XA-3501 SERIES XA-351 SERIES
(Manufactured after 6/1/96)
Open loop
XA-331 SERIES
release handle
Closed loop
release handle
Bracket pin
Bolt and nut retention
retained internally
for bracket pin
IF YOU HAVE THIS FIFTH WHEEL
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FW35 (XA-351) FIFTH WHEEL Trouble-Shooting Guide TABLE OF CONTENTS Difficult to uncouple from trailer. . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 4 Difficult to couple to trailer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 – 6 Movement within jaw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Lock pins rising . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Hard steering or binding . . . . . . . . . . .
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FW35 (XA-351) FIFTH WHEEL Trouble-Shooting Guide PROBLEM: Difficult to uncouple from trailer Cause Remedy 1. The secondary lock is not released. 1. If manual secondary, pull manual secondary release handle out and up, hooking it on casting as shown in Figure 1. Figure 1 2. The tractor may be puttng 2. Lock the trailer brakes, then back the pressure against locks (pulling tractor tight against the kingpin to locks tight against kingpin). relieve pressure on the locks. Lock the tractor brakes. Pul
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FW35 (XA-351) FIFTH WHEEL Trouble-Shooting Guide PROBLEM: Difficult to uncouple from trailer (con’t.) 7. Fifth wheel locks adjusted too 7. Re-adjust fifth wheel locks following tight. the procedures in the Lock Adjustment section of the maintenance instructions included with your fifth wheel (Holland publication XL-FW-308). 8. Fifth wheel must be rebuilt. Obtain the 8. Release handle will not stay out to proper rebuild kit for your model top plate. allow uncoupling. 9. Rebuild fifth wheel with t
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FW35 (XA-351) FIFTH WHEEL Trouble-Shooting Guide PROBLEM: Difficult to couple to trailer (con’t.) Cause Remedy 3. Attempting to couple too fast. 3. Slowly back the tractor up to the trailer. Pick up the trailer with the fifth wheel. STOP. Then continue backing until the fifth wheel locks firmly to the kingpin. Stopping helps prevent hitting the kingpin too hard. BACK INTO TRAILER DO NOT BACK INTO SLOWLY TRAILER FAST ➠ ➠➠ ➠ ➠ 4. Excess accumulation of rust or 4. Thoroughly clean the fifth wheel t
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FW35 (XA-351) FIFTH WHEEL Trouble-Shooting Guide PROBLEM: Difficult to couple to trailer (con’t.) Cause Remedy 7. Bent kingpin, damaged upper 7. Check the kingpin and upper plate coupler plate or improper use of coupler as detailed in Holland Service “lube plate.” Bulletin XL-SB020-01. Remove any improperly installed or improperly specified lube plates. Refer to Holland Service Bulletin XL-SB004-01 for lube plate warnings. Check the kingpin with a Holland TF-0110 kingin gage and bolster plate
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FW35 (XA-351) FIFTH WHEEL Trouble-Shooting Guide PROBLEM: Lock pins (XA-07292-T) raising Cause Remedy 1. Check the kingpin and upper plate 1. Kingpin too short or improperly coupler as detailed in Holland Service installed “lube plate.” Bulletin XL-SB020-01. Remove any improperly installed or improperly specified lube plates. Refer to Holland Service Bulletin XL-SB004-01 for lube plate warnings. 2. Too much vertical movement of BOLSTER PLATE jaw(s) in casting. 1.250 1.375 2.875 DIA. 2.750 3.312
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FW35 (XA-351) FIFTH WHEEL Trouble-Shooting Guide 5 BRACKET COMPONENTS 6 (NOT INCLUDED IN REBUILD KIT) 7 32 31 15 8 18 16 9 10 17 30 22 19 11 21L 20 33 19 16 12 13 22 MODELS EQUIPPED WITH 14L MANUAL SECONDARY LOCK 26 34 29 28 25 35 23 24 27 29 12 4 ACCESSORIES NOTE: FOR RIGHT HAND RELEASE. 36 14R 37 38 3 2 21R 39 1 2 ITEM NO. ITEM NO NO. PART NO. REQ. PART NAME NO. PART NO. REQ. PART NAME 1 XA-07292-T 2 Lock Pin 21L XA-07150-L 1 Cam plate (left-hand) 2 XB-5 2 Cotter pin (1/4" x 2") 21R XA-07150-
