AIR N ARC
®
I
-
300 SERIES ALL-IN-ONE POWER SYSTEM
®
SECTION 5: MAINTENANCE
090045-OP_r1
PAGE - 49
set bolt [
F
] and anchor bolt [
D
] to
fasten the tensioner plate into the
proper torqued position. Remove the
torque wrench.
5.4.3.4 REPLACING THE GENERATOR/
HYDRAULIC PUMP SERPENTINE
DRIVE BELT
To replace the generator / hydraulic pump
serpentine belt, the compressor drive belt
must first be removed. Consult
Figures 5-4
(for clutch access to belts),
Figure 5-7
, and
the following procedure:
1. With the machine off and the ignition
key removed, open and remove the
front access panel.
2. To access the drive belts from the
clutch pulleys, refer to the steps in
Section 5.4.3.2
under
“Belt Access
at Clutch”
.
Once the clutch assembly path is free from
the retaining cable and harness wire
connection, the belts can be accessed for
removal.
The compressor drive belt must first be
removed in order to access the generator/
hydraulic drive belt. Refer to
Section 5.4.3.2
for compressor serpentine belt removal.
Once the compressor drive belt is removed,
the worn generator serpentine belt can be
replaced. Refer to
Figure 5-7
and the
following steps:
1. Using a 3/4” socket wrench, loosen
bolt [
F
] enough to allow pivoting of
tensioner plate [
C
] to relieve enough
tension on the upper idler sheave in
order to remove the generator/
hydraulic pump belt; remove belt.
2. Position and route the new generator
serpentine belt as shown in
Figure 5-7
.
KEY
DESCRIPTION
KEY
DESCRIPTION
A
UPPER IDLER SHEAVE BOLT
G
DC GENERATOR SHEAVE
B
UPPER IDLER SHEAVE
H
ENGINE CLUTCH ASSEMBLY
C
TENSIONER PLATE (FOR UPPER IDLER)
J
AC GENERATOR SHEAVE
D
TENSIONER PLATE ANCHOR BOLT
K
LOWER IDLER SHEAVE
E
ANCHOR HOLE FOR TORQUE WRENCH
L
HYDRAULIC PUMP SHEAVE
F
TENSIONER PLATE ADJUSTMENT/SET BOLT
M
TORQUE WRENCH (ADJUSTMENT)
I
I
Pivot plate by applying torque wrench to tensioning hole. Torque to 65 ft-lbs.
Figure 5-6: Generator Belt Re-Tensioning
B
C
D
E
A
F
G
J
K
H
L
LO
O
SE
N
TI
G
H
TE
N
Summary of Contents for AIR N ARC I 300 SERIES
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