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XL-PS20053RM-en-US Rev A · 2017-10-06 · Amendments and Errors Reserved © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, NEWAY, SAF, and logos are trademarks of
SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Control Arm Removal
LSZ13/20 Control Arm and Bushing
The instructions below pertain to all procedures and must be
performed prior to replacing bushings or control arms.
1. With the vehicle unloaded and/or trailer disconnected on
a level surface, set parking brakes and chock drive tires
to prevent the vehicle from rolling forward or backward.
2. Place suspension in the in-service position. Exhaust air
pressure in the suspension air springs. Remove the air
pressure using the air pressure regulator or control valve.
2. LSZ13 Remove Lower Control Arm
Required Tools:
1-1/8" socket and wrench
Small pry bar
3/8" open-end wrench
3/4" wrench and socket
1/2" socket
Small hydraulic press or NEWAY bushing/bearing tool
Torque wrench capable of 250 ft.-lbs.
Roll of masing tape (optional)
NOTE:
DO NOT
remove and replace control arms on both
sides at the same time. Remove one side at a time.
1. Remove and discard two (2) 3/4" lock nuts and two (2)
3/4" washers from both lower 3/4" pivot bolts.
2. Remove and discard lower two (2) 3/4" pivot bolts and
two (2) 3/4" washers.
3. Remove the lower control arm, retain if NOT replacing.
Discard four (4) wear washers.
Servicing the upper control arm, go to Section 3
Replacing bushings in lower control arm, go to Section 6
Installing new lower control arm, go to Section 8
3. LSZ13 Remove Upper Control Arm
NOTE:
DO NOT
remove and replace control arms on both
sides at the same time. Remove and replace one
side at a time.
1. Record the position of all four (4) crossmember spacers
(if equipped).
2. Disconnect supply tubing to SuperChamber by depressing
release collar with 3/8" open-end wrench on fitting at
same time pulling on supply tubing
(Figure 1)
.
3. Remove and retain two (2) 1/2" bolts, two (2) 1/2" lock
washers, and lower air spring support plate (if equipped)
that attach air spring piston to axle.
Figure 1
AIR SUPPLY TUBING
4. Remove and discard the two (2) 3/4" lock nuts and two
(2) 3/4" washers from both upper pivot bolts.
5. Extend SuperChamber
™
clevis to allow removal of clevis
pin and hardware. Retain the clevis pin and hardware
(Figure 1)
.
6. Remove and discard (2) 3/4" pivot botls and two (2) 3/4"
washers from both upper pivots.
7. Remove and retain one (1) 3/4" bolt and one (1) 3/4"
washer from lower lift bracket.
8. Remove and retain two (2) 1/2"bolts, two (2) 1/2" lock
nuts and four (4) 1/2" washers that attach lift assembly
to upper control arm.
9. Remove and discard two (2) 3/4" pivot bolts two (2) 3/4"
washers from both upper pivots.
10. Remove and retain two (2) crossmember spacers (if equipped).
11. Remove upper control arm, retain if NOT replacing.
Discard four (4) wear washers.
Installing new bushings, go to Section 6.
Replacing upper control arm, go to Section 7 discard
upper control arm.
