Engine Exhaust Piping; Removal - Komatsu 930E-2 Shop Manual

FIGURE 2-4. ENGINE EXHAUST PIPING
1. Capscrew
2. Lockwasher
3. Nut
9. Remove exhaust duct clamps (6, Figure 2-4).
Remove capscrews (1), lockwashers (2) and nuts
(3) retaining exhaust pipes to turbocharger outlet
flange. Remove exhaust ducts (4 & 5). Cover
opening on engine exhaust outlets.
10. Remove alternator power cable protective cover.
Disconnect all (already marked) electrical cables,
oil and fuel lines that would interfere with power
module removal (see Figure 2-5). Cover or plug
all lines and their connections to prevent entrance
of dirt or foreign material. To simplify this proce-
dure, most connections utilize quick disconnects.
C2-4
4. Front Exhaust Pipe
5. Rear Exhaust Pipe
6. Clamp Bands
Power Module
11. Close cab heater shutoff water valves, disconnect
water lines and drain water from the heater core.
Secure water lines away from engine compart-
ment to prevent interference with power module

removal.

12. Drain engine coolant into clean containers for
re-use after engine installation. Coolant capacity
is approximately 195 gal (738 l).
13. Disconnect and remove piping (6, Figure 2-5) from
engine water pump and radiator routed to the
brake system cooling heat exchanger (7).
14. Remove upper radiator support rod (11) at each
side of radiator.
15. Remove capscrews and washers at vertical and
diagonal ladder mounting pads. Lift ladders from
truck and move to storage area.
16. Refer to Air Conditioning System, Section M for
procedures required to properly remove the refrig-
erant. After the system has been discharged, dis-
connect refrigerant hoses routed to cab at the
compressor and receiver/drier (10).
NOTE: System contains HFC-134A refrigerant.
Federal regulations prohibit venting air condition-
ing system refrigerants into the atmosphere. An
approved recovery/recycle station must be used
to remove the refrigerant from the air conditioning
system.
C02017 03/01