VMAC
– Vehicle Mounted Air Compressors
Toll Free:
1-888-241-2289
Fax: 1-250-740-3201
40
Maintenance Information
Routine Maintenance
In order to maintain the VMAC warranty the maintenance schedule must
be followed. In addition, only genuine original VMAC replacement parts
can be used to maintain the system.
The compressor system does not contain reed-valves or other easily
fouled, fatigue-prone components. With proper maintenance, the need
for premature repair or component replacement can be drastically
reduced.
The most critical aspect of maintenance is proper air filtration and clean
oil. If any particles enter the compressor, they can contaminate roller
bearings and the rotors in the compressor. Contamination will cause
severe, rapid damage to components.
If the compressor is not operated on a regular basis,
impact damage and premature bearing failure may occur in
the compressor due to vibrations from the vehicle. Operate
the system with no air usage (closed system) at least once
every 30 days for at least 15 minutes to ensure bearing
lubrication and rotation.
Torque Specifications
All fasteners must be torqued to specifications. Use manufacturer
’s
torque values for OEM fasteners.
Apply Loctite 242 or equivalent on
all engine-mounted fasteners.
Torque values are with Loctite applied
unless otherwise specified.
STANDARD GRADE 8 NATIONAL COARSE THREAD
Size
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
Foot-pound (ft-lb)
9
18
35
55
80
110
170
280
Newton meter (N•m)
12
24
47
74
108
149
230
379
STANDARD GRADE 8 NATIONAL FINE THREAD
Size
3/8
7/16
1/2
5/8
3/4
Foot-pound (ft-lb)
40
60
90
180
320
Newton meter (N•m)
54
81
122
244
434
METRIC CLASS 10.9
Size
M6
M8
M10
M12
M14
M16
Foot-pound (ft-lb)
4.5
19
41
69
104
174
Newton meter
(N•m)
6
25
55
93
141
236
Table 4 - Torque Table
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