Komatsu PC200-8M0 Shop Manual page 1025

300 Power train
Disassembly and assembly of final drive assembly
7. No.2 planetary carrier assembly
1) Assemble No.2 planetary carrier assembly
as follows.
a Replace thrust washers (20) and (23)
as well as pin (17) with new ones.
a There are traces of expansion on the
end surface of No.2 planetary carrier
side hole (e) which were originally
caused when the pin was inserted.
Make such the end surfaces are
smooth enough before reassembly.
1] Assemble needle bearing (22) to
No.2 planetary gear (21), fit top and
bottom thrust washers (20) and (23)
and then set the gear assembly on
No.2 planetary carrier (19).
2] Align the pin holes on the shaft (18)
and the carrier, and install the shaft
(18) by tapping it lightly with a plastic
hammer.
a Install the shaft, rotating the No.2
planetary gear (21). Take care so
the thrust washer is not dam-
aged.
3] Insert pin (17).
a When inserting the pin, take care
so that any of the three pawls on
the circumference (Portion (f))
may not touch the thin-walled
portion on the No.2 planetary
carrier (Portion (g)).Take note,
however, that the thin-walled por-
tion is likely to be on the opposite
side of the carrier, depending on
ac tual indi vid ual i tems . Pay
attention so that a pin pawl will
not come to the slender side of
the No.2 planetary carrier any
way. And when traces of the
groove are present, assembly
must be done avoiding such
locations.
a After assembling the No.2 plane-
tary carrier assembly, check that
No.2 planetary gear (21) rotates
smoothly.
PC200, 200LC, 220, 220LC-8M0
a After the pin is inserted, stake the
pin (B) on the carrier.
2) Install No.2 planetary carrier assembly
(16).
a Align the 4 gear shaft ends of the
No.2 planetary carrier assembly (16)
with the 4 dimples on the motor case
end surface to install.
8. Thrust washer
Install thrust washer (15).
SEN06144-00
9
50-300