Komatsu PC88MR-10 Shop Manual page 1196

50 Disassembly and assembly
Work equipment
7) Remove the adapter (7).
8) Disconnect the tube (8).
Slowly loosen the fitting of the tube so
that the remaining pressure in the
circuit between the anti-drop valve and
the cylinder is released.
The remaining pressure may damage
the O-ring, and the oil may be
splashed. Therefore, loosen the tube
while pressing the fitting and around it
with a cloth, etc.
9) Remove the bolts (9) (4 pieces), and remove
the anti-drop valve assembly (10).
Installation
(PC88MR-LA1Q-720-K-00-A)
1. Anti-drop valve assembly
1) Install the anti-drop valve assembly (10) with
the bolts (9) (4 pieces).
2) Connect the tube (8).
3) Install the adapter (7).
4) Connect the tube (6).
5) Connect the hoses (5), and (4).
50-168
6) Install the clamp (3).
7) Connect the connector P46 (2).
8) Install the clamp (1).
2. Refilling with oil
a Refill with oil to the specified level through
the oil filler port of the hydraulic tank. Start
the engine to circulate the oil through the
piping. Then check the oil level again.
3. Air bleeding
a Bleed air from the hydraulic circuit. See
TESTING AND ADJUSTING, BLEED AIR
FROM HYDRAULIC CIRCUIT .
PC88MR-10