Disassembly And Assembly Of Carrier Roller - Komatsu ecot3 PC300LC-8 Shop Manual

SEN02638-03
Disassembly and assembly of
carrier roller
Special tools
Part number
1 791-430-3230 Installer
F
2 791-601-1000 Oil pump assembly
Disassembly
a Disassemble according to the following figure.
Assembly
a Assemble according to the following figure.
a Only the precautions for assembly are described
below.
Floating seal
q
a Before installing floating seals (7) and (8), com-
pletely degrease both contact surfaces of the
O-ring and the floating seal (hatched area in the
illustration). Furthermore, take care so that no
dust will stick to the contact surface of the float-
ing seal.
2
Part name
t 1
t 1
50 Disassembly and assembly
a After inserting the floating seal with tool F1,
check that its slant is less than 1 mm and its pro-
jection (a) is 5 ? 7 mm.
q Carrier roller
a Check the amount of air leakage from the seal
with tool F2 by applying the standard pressure to
the oil filler port.
a Check that the gauge needle does not go down,
when the following standard pressure is applied
for 10 seconds.
Standard pressure:
a Fill the carrier roller assembly with oil, using tool
F2, and then tighten the plug.
5
Carrier roller:
145?155 cc(EO30)
2
0.1 MPa {1 kg/cm }
PC300, 350-8