SAF XL-FW491 User Manual
Owners Manual
Sliding Kompensator
FW8-72XX Series
FW35-72XX Series
FW7090-72XX Series
s-AINTENANCE0ROCEDURES
s#OMPREHENSIVE7ARRANTY
®
for
XL-FW491 Rev C
MAINTENANCE PROCEDURES
Failure to read, understand, and follow the important information
contained herein may result in a hazardous condition or cause a
hazardous condition to develop.
All maintenance must be performed by a qualified person using proper tools and safe
procedures.
All maintenance must be performed while the tractor is uncoupled from the trailer.
NOTE: The maintenance procedures contained in this manual apply mainly to the
Kompensator® base subassembly portion of the fifth wheel assembly. Additional
procedures beyond those discussed in this manual are required for the fifth wheel
top plate. Contact your nearest Holland distributor for the appropriate additional
information.
AS-NEEDED LUBRICATION
The following should be performed before putting into use and then at least once per
week or more frequently as required by operating conditions.
Perform the following steps while in the uncoupled condition to allow correct application
of lubricant.
While lifting up on the fifth wheel top plate, apply grease to the:
1. ...fittings on the fifth wheel top plate (see Figure 1,) that supply grease to lubricate
the bracket shoe cap and top plate pocket.
(NOTE: LowLube or NoLube top plates do not have these fittings.)
2. ...fittings on the side of the shoes (Item 3) that fill a reservoir that requires
approximately 2 pounds of grease.
3. ...fittings on the base (ends) of the cradle (Item 14).
4. ...fittings on the front and back of the cradle (Item 15).
FIGURE 1
Grease
resevoir
Grease front
cradle zerks.
Grease top plate contact
surfaces. The grease fitting is
on the side or under the front
of the top plate.
Fill reservoirs
with grease,
then apply
grease to shoes
using zerks.
Grease cradle zerks.
All of the following must be performed after the initial 5,000 miles of service and then
every 60,000 miles or 6 months, whichever comes first. Perform all inspections and
adjustments after a thorough steam cleaning.
NOTE: Severe service applications may require more frequent intervals.
1. Inspection – General
A. Inspect the fifth wheel mounting. Check bolt torque and replace any loose,
missing, or damaged bolts. Check for broken, distorted, or cracked components.
Repair or replace as needed.
B. Inspect fifth wheel top plate and Kompensator assembly for bent, worn,
cracked, or broken parts. Replace with HOLLAND parts only (see Figure 2).
2 SAF-HOLLAND, Inc. XL-FW491 Rev C
MAINTENANCE PROCEDURES continued
FIGURE 2
Check for warn,
bent, or broken
parts. Replace with
Holland parts only.
Check for
cracked,
Check bolt torque.
Replace missing
or damaged bolts.
Do not use any fifth wheel which does not operate properly.
2. Fifth Wheel Locking Mechanism: Measure Fore-Aft Movement
A. Test the operation of the fifth wheel locking mechanism using a Holland
TF-TLN-5001, 2˝ Kingpin or TF-TLN-1500, 3-1/2˝ Kingpin Lock Tester. Inspect for
proper locking.
B. Check the adjustment of the fifth wheel locks by moving the lock tester fore
and aft when locked in the locking mechanism. Fore and aft play should be
adjusted to less than 0.06˝ (1/16˝). Adjust the fifth wheel locks as described in
Holland Publications “Fifth Wheel Owner’s Manual” XL-FW483 Rev A or
XL-FW489 Rev A for the particular type of locking mechanism. If the locks
cannot be properly adjusted due to wear, the fifth wheel should be repaired
or replaced. Your HOLLAND Distributor has parts, part kits and fifth wheel top
plates available.
Improper adjustment can cause improper locking the mechanism.
C. The trailer kingpin should also be inspected for wear and damage.
A HOLLAND Kingpin Gauge (TF-0110) is available to aid this inspection.
3. Kompensator Base Sub-Assembly: Measure Fore-Aft Movement
A. Measure the fore and aft movement of the shoe sub-assembly in the
Kompensator bracket (see Figure 3).
Add shims (ITEM 11) and/or new bearing plates (ITEM 12 or ITEM 13) when
this movement exceeds 0.060˝ (1/16˝). See Figures 3 through 6.
broken, or
distorted
components.
Check fore/aft
movement of shoe.
Shim if greater
than .060".
Bearing plate
ITEM 12, ITEM 13
Shim ITEM 11
FIGURE 3 FIGURE 4
XL-FW491 Rev C SAF-HOLLAND, Inc. 3
MAINTENANCE PROCEDURES continued
BEARING
PLATE
B. If shimming is required, shim as follows:
1. Remove shoes and disassemble Kompensator. See Figure 3.
2. Remove bearing plates (ITEM 12 and ITEM 13). Measure thickness if less
than .31˝ (5/16˝) thick. Replace with new Holland part.
3. Install shims.
4. Check for free lateral movement of shoe in frame. DO NOT over shim.
Recheck fore and aft movement of the shoe subassembly. Movement is to
be less than .06˝ (1/16˝).
C. Inspect the cushions (ITEM 5) and other components for distortion and splitting or
cracking. If disassembly is required, follow steps 1–5 under section 4 below, and
replace as required.
4. Kompensator Base Subassembly: Measure Upward Movement
A.
Measure upward clearance on
the assembly. Do this on one
side at a time by lifting the fifth
wheel top plate upward manually
Pry or lift one side at a time.
Disassemble if it exceeds 0.5".
with the aid of a bar (see Figure
7). Clamp the shoe (ITEM 2) on
the opposite side to prevent its
movement, which will affect the
measurement (see Figure 7). If the
total movement exceeds 0.5˝ (1/2˝),
the unit should be disassembled
for further inspection.
If disassembly is required, follow the steps below:
1. Remove the fifth wheel top plate from the Kompensator base removing the
appropriate roll pins and bracket pins or cotter pins, nuts and bolts, depending
upon model.
2. Remove all loose internal parts
(shoes, tie rod, etc.).
3. Inspect all parts for distortion, wear
and cracking. Replace if necessary.
4. Measure the thickness of the curved
base of the shoe sub-assembly
(ITEM 2). The shoe should be
replaced if the base thickness
measures less than 0.31˝ (5/16˝).
See Figure 8.
FIGURE 8
SHIM
FIGURE 7
SHOE BASE
Measure shoe base
thickness. Replace if
it is less than .31˝
5
(
/16˝).
4 SAF-HOLLAND, Inc. XL-FW491 Rev C
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