7 - MAINTENANCE
Engine belts
NOTE:
Check the condition of the fan and air pump belts after every 50 hours of operation. Check belt tension after
every 300 hours of operation.
Fan and alternator belt
The belt-
(1)
that drives the cooling fan and alternator is
located at the front of the engine.
When
5
kg
(
11
lb
) of pressure is applied midway between
the belt pulleys, a correctly tightened belt will deflect
5
mm
(
0.2
in
) .at point
(A)
.
If the fan belt is slipping, fan efficiency is lowered, resulting
in the engine running too hot. or the alternator not charging
If the belt is too tight, the life of the alternator bearing will
be shortened. If the fan belt shows signs of cracking or
fraying, install a new one.
NHIL13CT01234AA
1
Air pump belt
The belt
(2)
that drives the engine air pump is located at
the front of the engine.
When
5
kg
(
11
lb
) of pressure is applied midway between
the belt pulleys, a correctly tightened belt will deflect
10
mm
(
0.4
in
) .at point
(A)
.
If the air pump belt is slipping, pump efficiency is lowered.
Resulting in the (DPF) burning not operating at a high
enough temperature or difficulty in starting burner. If the
belt is too tight, the life of the pump bearing will be short-
ened. If the fan belt shows signs of cracking or fraying,
install a new one.
NHIL13CT01234AA
2
7-21
Summary of Contents for Boomer 41
Page 14: ...1 GENERAL INFORMATION Proposition 65 BT09A213 1 1 8...
Page 20: ...1 GENERAL INFORMATION 1 14...
Page 186: ...7 MAINTENANCE 7 48...
Page 192: ...8 TROUBLESHOOTING 8 6...
Page 203: ...9 SPECIFICATIONS NHIL13CT01346HA 1 9 11...
Page 204: ...9 SPECIFICATIONS 9 12...
Page 206: ...10 ACCESSORIES 10 2...
Page 207: ...11 FORMS AND DECLARATIONS 11 FORMS AND DECLARATIONS _11_ 11 1...
Page 208: ...11 FORMS AND DECLARATIONS 11 2...
Page 210: ...11 FORMS AND DECLARATIONS 11 4...
Page 212: ...11 FORMS AND DECLARATIONS 11 6...