Doosan Power Train D50S-5 Specifications Systems Operation Testing & Adjusting Disassembly & Assembly page 49

Assembly of Transmission
1. Wash all the parts clean. Apply transmission oil
on all the parts.
2. Assemble oil seal (63) on the transmission case
using jig.
3. Assemble bearing cup (62) on relevant positions
on the transmission case.
Power Train
7. Install spring assembly and retainer (53) in the
cylinder.
8. Place the shaft assembly on press. Press down
the retainer, and assemble snap ring (52) using a
screw driver.
9. Assemble pin (57) and 2 thrust washers (59) in
the counter shaft of the low speed backward
clutch.
10. Assemble needle bearing, spacer, needle
bearing, gear (58), thrust washer (59) and
bearing (56).
11. Apply clean transmission oil on the clutch discs
and plates. Assemble the 7 discs and 8 plates in
following order.
a. First, install the clutch plate having toothed
surface on its outer diameter.
b. Then, assemble the clutch disc having toothed
surface on the inner diameter.
c. Repeat above procedures (1) and (2) to
complete the assembling of the clutch discs
and plates.
d. Assemble the bending plate (67) with the
bended part facing downwards.
48 Disassembly and Assembly