Removal And Installation Of Floor Frame Assembly - Komatsu PC88MR-10 Shop Manual

50 Disassembly and assembly
Cab and its attachments

Removal and installation of floor frame 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,
and release the pressure inside the hydraulic
tank.
Disconnect the cable from the negative (-)
terminal of the battery.
If you occasionally disconnect the heater
hose without draining the coolant, you may
be scalded with hot water due to high coolant
temperature in the radiator. Wait until the
coolant temperature drops before starting
the work.
Collect the refrigerant (air conditioner gas:
R134a) from the air conditioner circuit.
a Ask a qualified person for collecting, adding and
filling operations of the refrigerant (air
conditioner gas: R134a).
(Only qualified persons can work.)
a Never release the refrigerant (air conditioner
gas: R134a) to the atmosphere.
If refrigerant (air conditioner gas: R134a)
gets in your eyes, you may lose your sight.
Put on protective eyeglasses during
collecting or filling operation.
a Note the position where the piping, wiring and
connectors were disconnected so that they can
be installed correctly.
Removal
(PC88MR-H1H0-520-K-00-A)
1. Remove the operator's cab assembly. For
details, see "Removal and installation of
operator's cab assembly."
2. Open engine hood (1).
50-194
(PC88MR-H1H0-924-K-00-A)
3. Open radiator coolant drain cock (2), and drain
the coolant.
Coolant:
13 l l
4. Remove the air cleaner assembly. For details,
see "Removal and installation of air cleaner
assembly".
5. Remove machine front and left side covers (3) (2
pieces).
6. Remove + terminal (4) and - terminal (5) from
switch (6).
7. Disconnect operation system connector L19 (6a).
PC88MR-10