Removal And Installation Of Radiator Assembly - Komatsu PC88MR-10 Shop Manual

Removal and installation of radiator 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.
Loosen the cap of the hydraulic tank slowly
to release the pressure in the hydraulic tank.
Removal
(PC88MR-B220-520-K-00-A)
a Make a mark on the tube so that the insertion
amount can easily be checked when removing
the hose.
1. Remove the air cleaner assembly. For details,
see "Removal and installation of air cleaner
assembly".
2. Remove battery (1a) according to the following
procedure.
1) Remove rubber cover (2a).
2) Disconnect wiring (3a), (3b), and (3c).
3) Remove mounting bolts (4a) (4 pieces), and
remove brackets (5a) (2 pieces).
4) Remove batteries (1a) (2 pieces).
3. Remove the air conditioner condenser assembly
and reposition it. For details, see "Removal and
PC88MR-10
50 Disassembly and assembly
(PC88MR-B220-924-K-00-A)
installation of air conditioner condenser
assembly".
4. Open cover (1), loosen coolant drain plug (1a),
and drain the coolant.
5. Remove clamp (2a), and disconnect drain hose
(2b).
Coolant:
13 l l
6. Disconnect aftercooler upper hose (2). [*1]
7. Disconnect radiator upper hose (3). [*2]
8. Disconnect radiator overflow hose (4), and
remove partition plate (5).
Engine and cooling system
50-39