User manual
Groundsmaster 4000--D/4010--D Page 6 -- 25 Axles, Planetaries a nd Brakes
5. Determine necessary quantity of support shims.
A. Lubricate the axle case support bushing with a
thin coat of grease and slide axle case support onto
knuckle pin.
B. Positionsupportshimsthatwereremovedduring
disassembly between axle case support and axle
case. Install mounting screws into axle case. Slowly
tighten screws while frequently checking for clear-
ance (vertical endplay) between axle case support
and knuckle pin. If binding of components is noted
beforescrewsarefullytightened,addadditionalsup-
portshims. Torquescrewsfrom57 to 67 ft--lb (77 to
91 N--m).
C. Use dial indicator to measure vertical endplay of
axle case (Fig. 24).
AXLE CASE ASSEMBLY ENDPLAY:
0.001 to 0.008 in. (0.02 to 0.20 mm)
D. Adjustendplaybyincreasingorreducingnumber
of axle case support shims.
NOTE: Axle case support shims are available in
0.004 in.(0.1mm),0.008in.(0.2mm)and0.016in.(0.4
mm) thickness.
6. After correct support shims have been determined,
removemountingscrews,applyheavystrengththread--
locking compound to screw threads, reinstall screws
and torque from 57 to 67 ft--lb (77 to 91 N--m).
IMPORTANT: Correct engagement between bevel
gears is critical to axle performance and durability.
7. Temporarilyinstallthebevelgearcase/axlecaseas-
sembly on the axle support. Position a dial indicator at
the tooths center. Prevent the axle from turning and
measure the upper bevel gear to differential shaft gear
backlash (Fig. 25).
UPPER BEVEL GEAR BACKLASH:
0.004 to 0.016 in. (0.10 to 0.40 mm)
8. Adjustbacklashbyincreasingorreducingaxlebear-
ingshimthickness(seeD ifferentialShaftsinthissection
of this manual).
NOTE: Axle bearing shims are available in 0.004 in.
(0.1 mm), 0.008 in. (0.2 mm) and 0.020 in. (0.5 mm)
thickness.
1. Axle case support
2. Axle case
3. Bevel gearcase
4. Dial indicator
5. Knuckle pin
6. Support shim location
Figure 24
1
2
4
5
3
6
VERTICAL
ENDPLAY
57 to 67 ft--lb
(77to91N--m)
1
2
3
4
5
1. Axle support
2. Upper bevel gear
3. Differential shaft gear
4. Dial indicator
5. Axle bearing shims
Figure 25
1. Axle cover assembly
2. Lower bevel gear
3. Axle gear
4. Dial indicator
5. Axle bearing shims
Figure 26
1
2
3
4
5
Axles, Planetaries
and Brakes