adjustment bolt (see figure 4-28) to increase
All three belts should have same tension.
If not, remove and replace belts as a set
Replace guard (3), screws (1), and nuts (2).
Fan Belt Replacement (Code A). To remove fan
belts proceed as follows:
Remove two halves of belt guard (3,
figure 4-28) by removing six screws
(1) and nuts (2).
Loosen motor mount adjusting bolt
and relieve tension on belts. Remove
by manually rotating fan.
Install new belts, and adjust for proper
Replace belt guard.
Motor. Inspect motor for loose mounting, signs of
overheating, or other damage. Run the generator
set and determine that the motor is operating by
observing that the fan is rotating. Check for
Sight Indicator and Valves. (See figure 4-27)
Inspect Code B sight indicator (38) and
Code A shut-off valves (28) for leakage,
loose connection, or loose mounting.
Inspect sight indicator for cracking.
Inspect all hoses (8, 12, 16, 24, 25, 27, and
33) for loose mounting or loose connections,
leakage, cracking, or rot.
Replace hoses as follows:
Be sure engine has been shut down
sufficiently long to allow engine coolant
to cool off before changing hoses.
Loosen and then remove radiator cap.
Drain coolant into clean container using
coolant drain cock (see figure 4-2). Save
coolant for reuse.
To remove hose (8), remove clamps (3, 4,
6, and 7). Remove hose (9) from radiator
To remove hose (12), unscrew fittings (11)
from nipples (10).
To remove hose (16), remove clamp (13),
unscrew fittings (15) from reducers (18).
To remove hose (24), remove clamps (22),
then remove hose (24) from pipe connection
To remove hose (25), remove clamps (22),
then remove hose (25) from pipe connection
(23) and then radiator assembly.
To remove overflow hose (27), remove
clamp (26), then remove hose from radiator
To remove hose (33), remove clamps (29
and 32), then unscrew hose from fittings
Install hose (33) by attach- ing hose (33) to
fittings (34). Secure with clamps (29 and
Install overflow hose (27) by attaching hose
(27) to radiator assembly, then secure with
Install hose (25) by attach- ing hose (25) to
radiator assembly, then to pipe connection
(23). Secure with clamps (22).