AIR N ARC
®
300 SERIES ALL-IN-ONE POWER SYSTEM
®
SECTION 6: MAINTENANCE
090034-OP_r0
PAGE - 97
2. Locate the generator belt idler sheave [
A
] on
the generator tensioner plate [
B
]. 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.
Vanair
®
recommends rotating the tensioner
plate to its maximum position.
3. Once the 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.
6.6.14.4 REPLACING THE GENERATOR
SERPENTINE DRIVE BELT
TOOLS NEEDED
REPLACEMENT
PART(S)
Wrench - Size 5/16” (for
Tensioner Bolt)
Serpentine Belt
No. DR62184
Tension Tester
Socket Wrench - Size 3/4”
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-tensioned position.
B
TENSIONER PLATE
D
Belt tension adjustment should be verified using a tension tester.
Figure 6-18: Generator Belt Re-tensioning
A
D
B
C
NOTE
Vanair
®
recommends that the air
compressor and generator serpentine
belts both be changed at the same time
even if only one of the belts is in need of
being changed.
