Hyundai HL955 Manual page 196

④
Install ball bearing 50×90×18 (2) into
the idler gear (1) until contact is obtained
and fix it by means of retaining ring
90×3 (3).
⑤
Press in preassembled idler gear (1)
onto the shaft until contact is obtained.
⑥
Place both O-rings (1 and 2) into the
piston grooves and oil them.
75 × 3
1
142 × 3
2
※
Check function of the drain valve (see
arrow) - There must be no jamming of
the ball.
⑦
Place piston (1) into the disk carrier.
※
Observe installation position, see figure.
3
1
3-140
2
7609ATM178
1
7609ATM179
1
2
7609ATM180
1
7609ATM181