Perkins 402J-05 Operation And Maintenance Manual page 72

72
Maintenance Section
Alternator and Fan Belts - Inspect/Adjust
For inspections that are done with a suitable belt
frequency meter, install the belt frequency meter on
the span of the belt at Position "A" . Refer to table 37
for the correct frequency for a new belt or used belt
on a specific engine. Table 37 also gives the
approximate span of belt between crankshaft pulley
and alternator pulley.
Table 37
Engine Model
402-05
403-07
403-11 Naturally
Aspirated
403-11
Turbocharged
403-15
403-17
404-15
404-22
Copyright of Perkins Engine Company Limited. NOT FOR REPRINTING OR RESALE
Alternator Belt Tension and Frequency
Approximate
Span (mm)
Frequency (Hz)
188 mm 190-200 Hz
169 mm - 188 mm 190-200 Hz
167 mm - 205 mm 190-200 Hz
222-229 Hz
220 mm - 232 mm 150-170 Hz
215 mm - 225 mm 150-170 Hz
236 mm - 247 mm 190-200 Hz
236 mm - 247 mm 130-150 Hz
New belt
Tension (Nm)
and (lb)
350 to 405 N
160-170 Hz
(79 to 91 lb)
350 to 405 N
160-170 Hz
(79 to 91 lb)
400 N (90 lb) 160-170 Hz
425 to 456 N
205-214 Hz
(95.5 to 102.5 lb)
400 to 489 N
130-145 Hz
(90 to 110 lb)
400 to 489 N 130-145 Hz
(90 to 110 lb)
400 to 489 N
160-170 Hz
(90 to 110 lb)
400 to 489 N
110 -130 Hz
(90 to 110 lb)
M0087369-08
Used Belt
Tension (Nm)
Frequency (Hz)
and (lb)
267 to 356 N
(60 to 80 lb)
267 to 356 N
(60 to 80 lb)
300 N (67 lb)
364 to 395 N
(82 to 89 lb)
267 to 356 N
(60 to 80 lb)
267 to 356 N
(60 to 80 lb)
267 to 356 N
(60 to 80 lb)
267 to 356 N
(60 to 80 lb)