Disassembly and Reassembly
31
Clutch Mounting Bolt Torque Specifications
The following table below shows the torque
specifications for the mounting bolts used with
compressor clutches.
NWE MAX-II Coupling Mounting Bolt Torque
Specifications
The NWE MAX-II unit uses a different mounting
bolt than other units with X430 compressors. The
NWE MAX-II mounting bolt is a hex cap head,
instead of the standard socket-head. Its
characteristics are specified in the following table:
1.
1.187 in. Diameter Crankshaft
2.
0.23 in. Thick Silver Washer P/N 77-2505
3.
M12 X 1.75 Metric Bolt—Torque to 90 ft-lb
(122 N•m)
Figure 13: Large Crankshaft Coupling Installation
Crankshaft Diameter
1.0 in.
1.187 in.
Mounting Bolt
Dimensions
3/8-16 in.
M12 X 1.75
Metric
Type and Color
of Washer
Thin Silver
Thin Silver
Washer P/N
55-4002
55-9232
Torque
Specifications
45 ft-lb
(61 N•m)
90 ft-lb
(122 N•m)
AGA523
1
2
3
1.
1.0 in. or 1.187 in. Diameter Crankshaft
2.
Thin Washer
P/N 55-4002 for 1.0 in. Crankshaft
P/N 55-9232 for 1.187 in. Crankshaft
3.
3/8-16 in. Bolt—Torque to 45 ft-lb (61 N•m)
for 1.0 in. Crankshaft
M12 X 1.75 Metric Bolt—Torque to 90 ft-lb
(122 N•m) for 1.187 in. Crankshaft
Figure 14: Clutch Installation
NWE MAX-II Mounting Bolt P/N
51-721
Grade Specification
ISO Class 10.9
Dimensions
M12 X 1.75 Metric
Washer (Spacer) P/N
77-2505
Torque Specifications
75 to 80 ft-lb
(101 to 108 N•m)
AGA524
1
2
3