Komatsu 830E-AC Shop Manual page 122

FIGURE 2-5. SUBFRAME ROLLERS
1. Roller Assembly
2. Subframe
23. Attach lifting device to hoist and attach to
engine/alternator cradle structure and front sub-
frame lifting points as shown in Figure 2-6.
Remove safety chain.
FIGURE 2-6. POWER MODULE LIFT POINTS
1. Module Lifting Tool
2. Main Alternator
3. Module Lift Points
C2-8
3. cap screws
4. Engine
5. Power Module Sub-
frame
Power Module
24. Raise the power module slightly to determine if
module is on an even plane. Move the power
module straight out of truck to a clean work area
for disassembly.
For further disassembly of the engine, alternator, and
radiator, refer to the appropriate section of this man-
ual.
Installation
1. Inspect the main frame guide rails. Remove any
debris which would interfere with power module
installation.
2. Clean the main frame rear support brackets.
Apply a light film of soap solution to each rubber
bushing (5, Figure 2-4) located at the rear of the
subframe.
3. Check the subframe rollers making sure they
roll freely and are in the "roll-out" position. (Fig-
ure 2-5).
4. Attach a lifting device to engine/alternator cra-
dle structure and front subframe lifting points.
(Figure 2-6)
The complete power module weighs approxi-
mately 16 760 kg (36,950 lbs.). Make sure lifting
device to be used is of an adequate capacity.
5. Raise the power module and align the subframe
rollers within the main frame guide rails.
6. Lower the power module to the subframe guide
rails, relax the hoist slightly and roll the power
module into truck frame until lifting chains con-
tact frame cross member.
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