Vanair AIR N ARC RELIANT 300 Series Operations Manual & Parts List page 112

SECTION 6: MAINTENANCE
B
KEY DESCRIPTION
A TENSIONER PLATE MOUNTING AND
ADJUSTMENT BOLTS
B IDLER
C TENSIONER PLATE
D TENSIONING HOLE
NOTE
If new belts are installed, recheck the
tension after 10-20 hours of operation,
and adjust if necessary.
PAGE - 94
A
C D
Figure 6-18: Compressor Serpentine Belt Re-tensioning
090012-OP_r0
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AIR N ARC 300 SERIES ALL-IN-ONE POWER SYSTEM
E
G
KEY DESCRIPTION
E Loosen bolts to allow tensioner plate to pivot man-
ually to achieve new belt-tensioned position.
F Pivot plate by applying torque wrench to tension-
ing hole.
G Belt tension adjustment should be verified using a
tension tester.
TOOLS NEEDED
Wrench - Size 6mm Hex Head
Torque Wrench, 1/2" Drive
1. With the machine off and the ignition key
removed, open and remove the front panel.
2. Loosen the four tensioner plate bolts [ A ]
mounting the tensioner plate [ C ] to the
compressor only enough to allow tensioner
plate to rotate/slide along the grooves in the
plate while still in position ( DO NOT
remove).
3. Use a 1/2" drive torque wrench applied to the
square tensioning hole [ D ] to manually rotate
the plate/idler about the loosened, but
anchored, mounting bolt. Apply torque of 51
in-lbs as per Table 6B: Measuring Belt
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F
REPLACEMENT
PART(S)
Not Applicable