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
CORRECT
TROUBLESHOOTING
SECTION
WRONG
TROUBLESHOOTING
SECTION
XA-3501 SERIES
XA-351 SERIES
(Manufactured after 6/1/96)
Open loop
release handle
XA-331 SERIES
Closed loop
release handle
Bracket pin
retained internally
Bolt and nut retention
for bracket pin
IF YOU HAVE THIS FIFTH WHEEL,
REFER TO THE FW3500 (XA-3501)
TROUBLESHOOTING GUIDE SECTION.
TROUBLESHOOTING HINTS FOR
THIS MODEL FIFTH WHEEL TOP PLATE
ARE CONTAINED IN THIS SECTION.
➌
Serial Number Tag Identification
For this troubleshooting section, the
part number on the serial number tag
should begin with one of the following:
• FW35
• XA-351
Part & Serial
Number Tag
1
XL-FW453-01
FW35 (XA-351) FIFTH WHEEL
Trouble-Shoot ing Guide
PROBLEM: Difficult t o un coup le from t railer
Cause
Rem ed y
1. The seconda ry lock is not relea sed.
1. If m a nua l seconda ry, pull m a nua l
seconda ry relea se ha ndle out a nd up,
hooking it on ca sting a s shown in
Figure 1.
Figure 1
2. The tra ctor m a y be puttng
pressure a ga inst locks (pulling
locks tight a ga inst kingpin).
2. Lock the tra iler bra kes, then ba ck the
tra ctor tight a ga inst the kingpin to
relieve pressure on the locks. Lock the
tra ctor bra kes. Pull relea se ha ndle.
3. Tra ctor too low
3. Ra ise tra ctor suspension to proper ride
height.
4. Rust or grim e build-up on locking
4. Spray a light lubricant or apply a
lightweight grease on all moving parts
including the cam plate, yoke, lock pins,
and release handle and spring. Operate
several times to work in the lubricant.
Follow recommended lubrication schedule
as detailed in Service Bulletin XL-SB036-01.
m echa nism .
5. Bent kingpin, da m a ged upper
coupler pla te or im proper use of
“lube pla te.”
5. Check the kingpin and upper plate
coupler as detailed in Holland Service
Bulletin XL-SB020. Remove any improperly
installed or improperly specified lube
plates. Refer to Holland Service Bulletin
XL-SB004-01 for lube plate warnings.
6. Bent kingpin, da m a ged bolster
pla te, or im proper use of “lube
pla te.”
6. Check the kingpin with a Holla nd
TF-0110 kingin ga ge a nd bolster pla te
with a 48˝ stra ight edge – repa ir or
repla ce a s required (See Figure 2 below,
a nd Service Bulletin XL-SB-020.)
.06” MAX.
Figure 2
BOLSTER PLATE
38”
1.250
1.375
.25” MAX.
.12” MAX.
2.875 DIA.
2.750
3.312
2.000 DIA.
R.
”
10
R.
°
1
±
°
90
2.815 DIA.
”
19
3
FW35 (XA-351) FIFTH WHEEL
Trouble-Shoot ing Guide
PROBLEM: Difficult t o un coup le from t railer (con ’t .)
7. Fifth wheel locks a djusted too
7. Re-a djust fifth wheel locks following
the procedures in the Lock Adjustm ent
section of the m a intena nce instructions
included with your fifth wheel
tight.
(Holla nd publica tion XL-FW-308).
8. Fifth wheel must be rebuilt. Obtain the
8. Relea se ha ndle will not sta y out to
proper rebuild kit for your model top plate.
a llow uncoupling.
9. Rebuild fifth wheel with the proper
9. Other m issing or da m a ged relea se
Holla nd rebuild kit.
system pa rts.
10. Repla ce entire fifth wheel.
10. Ca sting bent/da m a ged a t throa t
a rea restricting m ovem ent.
PROBLEM: Difficult t o coup le t o t railer
Cause
Rem ed y
1. The tra iler m a y be too high; the
kingpin is not entering the locks
properly.
1. Chock tra iler wheels. Then using LOW
GEAR, lower the tra iler la nding gea r
until the bolster pla te is a ligned with
the fifth wheel, a s shown in Figure 3.
Figure 3
Wrong
OK
FIFTH WHEEL
WILL NOT LIFT
TRAILER
FIFTH WHEEL
MUST LIFT
TRAILER
4"- 6"
FIFTH WHEEL
TILTED DOWN
USE LOW
GEAR
2. Pull relea se ha ndle a ll the wa y out
(see Figure 4).
2. Locks a re closed.
Figure 4
OK
LOCKS ARE OPEN
LOCKS ARE CLOSED
4
FW35 (XA-351) FIFTH WHEEL
Trouble-Shoot ing Guide
PROBLEM: Difficult t o coup le t o t railer (con ’t .)
Rem ed y
Cause
3. Slowly ba ck the tra ctor up to the
tra iler. Pick up the tra iler with the fifth
wheel. STOP. Then continue ba cking
until the fifth wheel locks firm ly to the
kingpin. Stopping helps prevent hitting
the kingpin too ha rd.
3. Attem pting to couple too fa st.
BACK INTO TRAILER
DO NOT
TRAILER FAST
BACK INTO
SLOW LY
➠
➠
➠
➠
4. Excess a ccum ula tion of rust or
grim e is interferring with lock
opera tion.
4. Thoroughly clea n the fifth wheel then
relubrica te a ll m oving pa rts including
the ca m pla te, yoke, lock pins, a nd
relea se ha ndle a nd spring, a s described
in Holla nd Service Bulletin XL-SB036-01.
Opera te severa l tim es to work in the
lubrica nt. Follow recom m ended
lubrica tion schedule a s deta iled in
Service Bulletin XL-SB036-01.
5. Da m a ged, bent relea se ha ndle.
5. Repla ce relea se ha ndle using rebuild
kit RK-08415-1.
6. Da m a ged, bent yoke sha ft from
im proper coupling (see Figure 4).
6. Inspect for kingpin da m a ge (im pa ct)
(see Figure 5). If dam aged, rebuild fifth
wheel with the proper Holland rebuild kit.
Figure 5
Trailer
Improper coupling attempt.
Severely misaligned trailer
kingpin and fifth wheel.
5
FW35 (XA-351) FIFTH WHEEL
Trouble-Shoot ing Guide
PROBLEM: Difficult t o coup le t o t railer (con ’t .)
Rem ed y
Cause
7. Bent kingpin, da m a ged upper
coupler pla te or im proper use of
“lube pla te.”
7. Check the kingpin a nd upper pla te
coupler a s deta iled in Holla nd Service
Bulletin XL-SB020-01. Rem ove a n y
im properly insta lled or im properly specified
lube pla tes. Refer to Holla nd Service Bulletin
XL-SB004-01 for lube pla te wa rnings.
Check the kingpin with a Holla nd
TF-0110 kingin ga ge a nd bolster pla te
with a 48˝ stra ight edge – repa ir or
repla ce a s required (See Figure 6 below,
a nd Service Bulletin XL-SB020-01.)
Figure 6
.06” MAX.
38”
.25” MAX.
.12” MAX.
R.
”
10
R.
°
1
±
°
90
”
19
BOLSTER PLATE
2.875 DIA.
1.250
1.375
2.750
3.312
2.000 DIA.
2.815 DIA.
PROBLEM: Excessive m ovem en t in t h e lock jaw s
Rem ed y
Cause
1. Check kingpin for a ccepta ble wea r with
Holla nd TF-0110. Repla ce kingpin, if
necessa ry.
1. Kingpin wea r.
2. Adjust fifth wheel following the procedures in
the Lock Adjustm ent section of the
2. Fifth wheel out of a djustm ent.
m aintenance instructions included with your
fifth wheel (Holla nd publica tion XL-FW308).
3. Rebuild fifth wheel using proper rebuild kit.
3. Fifth wheel ca nnot be a djusted
further.
6
FW35 (XA-351) FIFTH WHEEL
Trouble-Shoot ing Guide
PROBLEM: Lock p in s (XA-07292-T) raisin g
Rem ed y
Cause
1. Check the kingpin a nd upper pla te
coupler a s deta iled in Holla nd Service
Bulletin XL-SB020-01. Remove any improperly
insta lled or im properly specified lube
pla tes. Refer to Holla nd Service Bulletin
XL-SB004-01 for lube pla te wa rnings.
1. Kingpin too short or im properly
insta lled “lube pla te.”
2. Too m uch vertica l m ovem ent of
BOLSTER PLATE
ja w(s) in ca sting.
1.250
1.375
2.875 DIA.
2.750
3.312
2.000 DIA.
2.815 DIA.
2. Shim ja w(s) in ca sting using Pa rt No.
XB-05859-1 a s shown in Figure 7.
NOTE: Do not shim tight. Ma inta in .040˝
to .060˝ free pla y between the lock ja w
and the casting.
Figure 7
Lock Pin
Top of
Fifth Wheel
Plate
Fifth
Lock
Jaw
Wheel
Casting
Spacers
Cotter
Pin
PROBLEM: Hard st eerin g or b in d in g
Rem ed y
Cause
1. Lubrica te top of fifth wheel pla te using a
high pressure, lithium -ba sed grea se.
1. La ck of lubrica tion on fifth
wheel top surfa ce.
Follow recom m ended lubrica tion schedule
a s described in Service Bulletin XL-SB036.
2. Check upper coupler pla te for fla tness.
Repla ce if necessa ry. (Refer to Service
Bulletin XL-SB020-01 for additional information
on upper coupler pla te specifica tions.)
2. Wa rped tra iler upper coupler
pla te.
7
FW35 (XA-351) FIFTH WHEEL
Trouble-Shoot ing Guide
5
6
BRACKET COMPONENTS
(NOT INCLUDED IN
REBUILD KIT)
7
32
31
15
8
18
16
17
9
10
30
22
19
20
19
11
21L
33
16
22
12
13
MODELS EQUIPPED WITH
MANUAL SECONDARY LOCK
14L
26
34
29
28
25
29
35
23
24
27
12
4
ACCESSORIES
36
NOTE: FOR RIGHT HAND
RELEASE.
14R
37
38
3
21R
2
39
1
2
ITEM
NO. PART NO.
NO.
REQ. PART NAME
ITEM
NO. PART NO.
NO
REQ. PART NAME
1
2
3
4
5
6
7
8
9
XA-07292-T
XB-5
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
2
1
Lock Pin
21L XA-07150-L
21R XA-07150-R
22 XB-T-69-A
23 XA-07151-1
24 XB-07291
1
1
1
1
1
Cam plate (left-hand)
Cotter pin (1/4" x 2")
Lock jaw set
Cam plate (right-hand)
XA-07296
XB-07628
XB-HNH-34-F
Locknut (1/2"-20) (2 add’l. req’d. for brackets)
Release handle (universal for both left and right)
Compression spring
Extension spring
Locknut (3/4"-16)
XB-PW-1316-112
XB-1127
Washer (1-1/2" O.D. x 13/16" I.D.)
Rubber washer
25 XB-PW-1732-1-116 1
Washer (1-1/16" O.D. x 5/8" I.D.)
Cotter pin (1/8" x 1-1/4")
26 XB-07508
27 XB-T-49
1
1
1
2
2
2
2
2
1
1
1
1
1
1
XB-02312
Lock adjustment tag
Yoke shaft
Washer (1-3/8" O.D. x 9/16" I.D.)
Operation tag
XA-1706
28 XB-07610
29 XB-H-38
10 XB-1505
Compression spring
Yoke
Grease zerk
11 XA-07295
12 XB-2149
* 30 XB-C-95
* 31 XE-06356
* 32 XB-1604-5
* 33 XB-0011-2
Hex head cap screw (1/2"-20 x 1-1/4")
Bracket pin
Torsion spring
13 XB-21-S-500-2750
14L XA-3542-L
14R XA-3542-R
15 XB-2083
Roll pin (1/2" x 2-3/4")
Secondary lock (left-hand)
Secondary lock (right-hand)
Rubber bushing (brackets mfg'd prior to 5/82)
Rubber bushing (brackets mfg'd after 5/82)
Manual secondary lock release handle
Manual secondary lock
** 34 XA-3542-M
Hex head cap screw (1/2"-20 x 1-3/4") ** 35 XA-3528
16 XB-08559
17 XA-1029
Washer (1-3/4" O.D. x 9/16" I.D.)
Roller (1/2” I.D.)
* 36 TF-0110
Kingpin gage
* 37 TF-0237
2" Lock gage (plug)
18 XB-CX-58-F-134
19 XB-07431
20 XA-1507
Hex head cap screw (5/8"-18 x 1-3/4")
Washer (2-5/8" x 21/32")
Roller (5/8” I.D.)
* 38 TF-TLN-5001
* 39 TF-TLN-1000
Kingpin lock tester (New)
Kingpin lock tester (Old)
* Parts not included in rebuild kit (available from your local Holland distributor.)
** Parts included in rebuild kits RK-351-A-L-02 and RK-351-A-02.
8
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