Columbia ParCar Expediter EX21-24A, Service Manual

Page: 62 / 94

Section 7 - Rear Wheels,
Rear Suspension & Axle Assembly
19 Remove O-rings from outer input bearing bore and both
input shaft bore (12). See Figure 7-17. intermediate bores. See Figure 7-19.
20.
Remove O-rings (10) at each end of intermediate shaft
on bearing shoulders. See Figure 7-2.
21.
Clean the axle housing and carrier cover (18) with lintfree
rags. Remove all traces of old silicone sealant from
sealing surface of cover and housing.
ASSEMBLING REAR AXLE
All callout numbers in steps refer to Figure 7-4.
1 Prior to installing, wipe new O-rings with SAE 30 weight oil.
Install one O-ring (14) into outer input shaft (12) bearing
bore. Install two O-rings (14) into intermediate shaft (9)
bearing bores and two O-rings (10) onto intermediate
shaft and gear assembly.
2. Press inner and outer bearings (13, 15) on input shaft (12)
until seated against bearing shoulders. See Figure 7-21.
3. Install new O-ring (14) into bearing bore of input shaft (12).
NOTICE: Input shaft assembly must be supported by
hand as not to damage gear teeth. Use care if using a
hammer to coax shaft and gear into correct position.
Use care if using a hammer to coax shaft and gear into
correct position.
4. Install input shaft (12). Bearings (13, 15) and shaft should
slide easily into housing. If resistance is encountered, use
a plastic or leather mallet to tap shaft into position. See
Figure 7-18.
5. Install outer snap ring (16) at input shaft bore. See Figure
7-19.
6. After O-rings (10) are installed on shaft (9) and housing
(1), install intermediate shaft and gear assembly (9)
through bottom opening in housing.
NOTICE: Small end of intermediate shaft and gear
assembly must be tilted toward bottom opening until
bearing trunnion visually engages intermediate bores.
7. Align both bearing trunnions with intermediate bore.
Continue supporting intermediate shaft and gear
assembly with one hand and insert the flanged side
bearing (11) into opening
NOTICE: Input shaft assembly must be supported by
hand as not to damage gear teeth.
Figure 7 - 20