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Rebuild Procedures
5. Disassembly and Inspection
1.
Completely remove and discard all components.
IMPORTANT: DO NOT remove the pocket inserts unless
they are cracked or worn. Refer to
Section 11 for inspection information.
IMPORTANT: Rebuild kits contain all components
necessary to completely rebuild the fifth
wheel top plate. DO NOT reuse old parts.
NOTE: Lock pin and adjustment pin could be difficult to
dislodge and could require force to remove.
DO NOT hit steel parts with a steel
hammer as parts could break, sending
steel fragments flying in any direction
creating a hazard which, if not avoided,
could result in minor to moderate injury.
2.
Thoroughly steam clean the top plate.
3.
Inspect the fifth wheel top plate for cracks and flatness.
Fifth wheels with cracks MUST be replaced. If the lock
pin hole, adjusting pin hole, or bracket pin holes are
elongated, the top plate MUST be replaced.
NOTE: The maximum allowable lock pin hole diameter
is 1.429" (36.30 mm). The maximum allowable
adjusting pin hole diameters are 1.672" (42.47 mm)
(top) and 1.172" (29.77 mm) (bottom).
Failure to replace fifth wheels with cracks,
elongated lock pin holes or elongated
adjusting pin holes could result in tractor-
trailer separation which, if not avoided,
could result in death or serious injury.
6. Front Lock Insert Installation
1.
If the top plate is not right-side up, use a lifting device
capable of lifting 500 lbs. (227 kg) to place the top plate
right-side up on a flat, clean working area.
NOTE: Follow the instructions published by the lifting
device manufacturer for proper operation of the
lifting device.
2.
Install the low head socket cap screw later used to secure
the position of the adjusting pin (Figure 7). Torque to
11-13 ft.-lb. (15-18 N•m).
12
Figure 7
Figure 8
3.
4.
XL-FW20096RM-en-US Rev C · 2020-12-09 · 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.
GENERATION 2
LOW HEAD SOCKET
CAP SCREW
GENERATION 2 ONLY
For Generation 2 Fifth Wheels Only: Rotate the front
lock insert into the detent in the top plate. Secure with
the insert keeper and one (1) of the two (2) low head
socket cap screws (Figure 8). Torque to 11-13 ft.-lbs.
(15-18 N•m). (Skip this step for Generation 1 Fifth
Wheels and proceed with Step 4.)
Using a lifting device capable of lifting 500 lbs.
(227 kg), place the top plate upside down on a flat,
clean working area.
NOTE: Follow the instructions published by the lifting
device manufacturer for proper operation of the
lifting device.
GENERATION 1
LOW HEAD SOCKET
CAP SCREW
FRONT LOCK
INSERT
LOW HEAD SOCKET
CAP SCREW
INSERT
KEEPER
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