Removal And Installation Of Cylinder Head Assembly - Komatsu PC88MR-10 Shop Manual

Removal and installation of cylinder head assembly

Place the machine on a level ground and
lower the work equipment to the ground in a
stable posture.
Stop the engine, turn the battery disconnect
switch to OFF position, and remove the key.
(For details, see Testing and adjusting,
"Handling battery disconnect switch".)
Set the lock lever in LOCK position.
Removal
(PC88MR-A100-520-K-00-A)
a Record the disconnected position of the hose
and wiring connector to avoid misplacing.
1. Open cover (1a) and turn valve (1b) at the
bottom of the main pump to CLOSE position (S).
a Disconnect the fuel hose.
2. Disconnect hose (1c).
a It is for fuel not to flow reverse from return
fuel piping into cylinder.
PC88MR-10
50 Disassembly and assembly
(PC88MR-A100-924-K-00-A)
3. Remove engine hood assembly. For details, see
"Removal and installation of engine hood
assembly".
4. Remove KCCV ventilator. For details, see
"Removal and installation of KCCV ventilator".
5. Remove KDOC muffler. For details, see
"Removal and installation of KDOC muffler".
6. Open cover (1), loosen the coolant drain plug,
and drain the coolant.
Coolant:
13 l l
7. Remove mounting bolts (2) (6 pieces), and
remove cover (3).
8. Remove mounting bolts (4) (6 pieces), and
remove cover (5).
Engine and cooling system
50-27