SERVICE REPAIR
H1050HD-CH H1150HD-CH [E117]
1400 SRM 1171
Operation
General
This section has a description and the repair procedures for the planetary gear axle.
Description
The planetary gear axle has an axle housing and two
final drive assemblies. See Figure 1 and Figure 2.
Each final drive assembly is a planetary gear unit.
The planetary gear assembly changes the final drive
ratio, which increases the torque to the drive wheels.
Each unit has a drive axle, sun gear, ring gear hub,
and ring gear. There are also three planetary pin-
ions, a planetary spider, and a housing. The differ-
ential is also installed in the axle housing. The ser-
vice brake is also installed on the drive axle. See the
section Service Brake for your lift truck, for repair
instructions of the brakes.
Operation
The rotation of the differential causes the axle shafts and the sun gears to rotate. The sun gears then cause
the planetary pinions to rotate. Rotation of the pinions causes the planetary spiders to rotate the hubs and the
drive wheels. The ring gear and the ring gear hub do not rotate.
1
Operation
1400 SRM 1171
Figure 1. Planetary Axle With Oil-Cooled Brakes
2
1400 SRM 1171
Operation
Legend for Figure 1
1. AXLE HOUSING
2. SPINDLE
3. SEAL
4. ROTOR
5. OIL SEAL
6. BEARING CONE
7. BEARING CUP
8. WHEEL HUB
9. RING GEAR HUB
10. RING GEAR
11. INNER HUB
12. WHEEL BEARING ADJUSTMENT NUT
13. WHEEL BEARING ADJUSTING LOCK NUT
14. AXLE
15. THRUST BUTTON
16. PLANETARY GEAR CARRIER
17. COVER
18. PINION SHAFT (3)
19. PINION THRUST WASHER
20. PINION GEAR (3)
3
Operation
1400 SRM 1171
1. DRAIN/FILL PLUG
2. COVER
3. AXLE SHAFT THRUST BUTTON
4. CAPSCREW
5. PLANETARY GEAR CARRIER
6. SNAP RING
7. SUN GEAR
8. THRUST WASHER
9. WHEEL BEARING ADJUSTING NUT
10. LOCK NUT LOCK PLATE
11. LOCK PLATE CAPSCREW
12. LOCK NUT LOCK PLATE
13. RING GEAR
14. RING GEAR HUB
15. RETAINER PLATE
16. CAPSCREW
17. CAPSCREW
18. WHEEL STUD NUT
19. WHEEL STUD NUT WASHER
20. WHEEL RIM CLAMP
21. WHEEL STUD