SECTION 6: MAINTENANCE AIR N ARC
®
200 SERIES ALL-IN-ONE POWER SYSTEM
®
PAGE - 86 090019-OP_r0
To re-tension the generator serpentine belt, consult
Figure 6-17 and the following procedure:
1. With the machine off and the ignition key
removed, Locate the generator belt idler
sheave [
A] on the generator tensioner
palatable].
2. Loosen, but do not remove, the tensioner
plate mounting and adjustment bolt [
C];
Loosen enough to allow the tensioner plate
to pivot while still retaining belt path position.
3. As the tensioner plate is manually pivoted
about the loosened, but anchored, mounting
bolt, use a tension tester on the belt, at
various increments, to determine the correct
position of the plate. Consult
Table 6B:
Measuring Belt Deflection
for the proper
tension measurement.
4. Once a position is achieved that accounts for
a satisfactory tension in the belt, torque the
bolt [
C] to 12 ft-lbs (16.3 Nm) to secure the
tensioner plate [
B] into position.
WARNING
Before performing maintenance or repair
operations on the machine, ensure that
all power has been removed and locked
out to prevent accidental start-up.
KEY DESCRIPTION KEY DESCRIPTION
A
IDLER SHEAVE C TENSIONER PLATE MOUNTING AND ADJUSTMENT BOLT: Loosen
bolt to allow tensioner plate to pivot manually to achieve new belt-ten-
sioned position.
B TENSIONER PLATE D Belt tension adjustment should be verified using a tension tester
Figure 6-17: Adjusting the Generator Drive V-Belt
NOTE
If a new generator belt is installed,
recheck the tension after 10-20 hours of
operation, and re-tension if necessary.
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