SECTION 6: MAINTENANCE
AIR N ARC
®
300 SERIES ALL-IN-ONE POWER SYSTEM
®
PAGE - 90
090010-OP_r0
6.5.16.2 REPLACING THE AIR COMPRESSOR
SERPENTINE DRIVE BELT
To replace the air compressor serpentine belt consult
Figures 6-17
and
6-18
, and the following procedure:
1. With the machine off and the ignition key
removed, open and remove the front panel.
2. Locate the clutch retaining cable ([
F
] in
Figure 6-17
) secured to the base floor of the
machine near the clutch apparatus of the
engine.
3. Loosen and remove the clutch retaining cable
[
F
], lock washer [
D
], and washer [
E
] securing
the cable to the floor.
4. Position and route the new air compressor
serpentine belt as shown in
Figure 6-18
,
making sure that it goes on the outside of the
double sheave track on the engine clutch
assembly.
TOOLS NEEDED
REPLACEMENT
PART(S)
Socket Wrench - Size 6 mm
Hex Head (for Tensioner
Plate Bolts)
Serpentine Belt
No. DR270054
Torque Wrench, 1/2” Drive
Ratchet, 1/2” with Extension
TABLE 6B: MEASURING BELT DEFLECTION
SPAN LENGTH (in)
DEFLECTION
DISTANCE (in)
DEFLECTION FORCE (lbs)
ALL RIBS
TORQUE TO IN-LB TENSION
RE-TENSION
NEW INSTALL
RE-TENSION
NEW INSTALL
14.286
0.223
10.725
17.074
51
79
P
F
c
q
P - Span Length
c - Center Distance
F - Deflection Force
q - Deflection Distance
