Operation and maintenance manual

Section 140-0060
3
SM 2148 5-02
Front Axle Group - Differential Drive Head
SM - 033
3. Pull out driveshaft assembly (1, Fig. 2) from hub to
disengage the shaft splines from wheel (30).
4. Cover open end of hub unit to prevent entry of dirt.
5. Repeat steps 1 through 4 for other hub end.
6. Identify the relationship of the driveline flange to
both the differential shaft (43) and the transmission
flange. Remove the driveline from the machine. Refer
to Section 130-0010, FRONT DRIVELINES.
Drive Head Unit from Axle Casing
1. Remove nuts (44) and washers (45) from rear end
cap (42).
2. Withdraw differential shaft (43) complete with end
cap (42), oil seal (41), shaft bearing (40), lockplate
(39) and shaft nut (38).
3. Remove all gasket material from bearing recess in
axle casing (37).
4. Support the weight of the drive head with suitable
lifting equipment.
5. Remove nuts (57) and spring washers (56).
6. Insert two 5/8 in UNF bolts into extractor holes
provided in gear casing flange and tighten to separate
gear casing (17) and helical gear housing (5) from axle
casing (37).
7. Carefully remove gear casing (17) assembly clear of
axle casing (37) and place on a suitable build stool.
8. Remove all traces of gasket material from axle
casing (37) and gear casing (17) flanges.
Helical Gear Housing from Gear Casing
1. Attach suitable lifting equipment to helical gear
housing (5).
2. Remove bolts (69) and washers (68).
3. Insert two 1/2 in UNF bolts into extractor holes
provided in helical gear housing flange and with
container ready to catch the oil, tighten bolts to
separate helical gear housing (5) from gear casing (17).
4. Carefully lift helical gear housing from gear casing and
place on work bench, bearing retainer (3) uppermost.
5. Remove all traces of joint material from gear casing
flange and remove lifting equipment.
Fig. 2 - Part View of Hub Reduction Unit
7 - Oil Filler/Level Plug
8 - Planet Carrier
4- Bolt
5 - Washer
6- Bolt
1 - Driveshaft Assembly
2- Hub
3 - Washer