4-29
Table 4-5. Compressor Torque Values
TORQUE RANGE
SIZE
TORQUE RANGE
USAGE
DIAMETER THREADS
FT LB
MKG
USAGE
(INCHES)
PER INCH
FT-LB
MKG
1/16
27 (pipe)
8 --- 12
1.11 --- 1.66
Pipe Plug --- Crankshaft
1/8
20 (pipe)
6 --- 10
0.83 --- 1.38
Oil Return Check Valve --- Crankcase
1/4
20 (pipe)
20 --- 25
2.77 --- 3.46
Pipe Plug --- Gauge Connection
1/4
20
10 --- 12
1.38 --- 1.66
Connecting Rod Capscrew
12 --- 15
1.66 --- 2.07
Baffle Plate --- Crankcase
1/4
28
12 --- 16
1.66 --- 2.21
Side Shield
1/4
28
6 --- 10
0.83 --- 1.38
Oil Pump Drive Segment
12 --- 16
1.66 --- 2.21
Unloader Valve
Cover Plate --- Plate End
16 --- 20
2.21 --- 2.77
Bearing Head
5/16
18
16
20
2.21
2.77
Terminal Block Cap Screws
5/16
18
20
30
2 77
4 15
Suction Valve
20 --- 30
2.77 --- 4.15
Discharge Valve
Pump End Bearing Head
3/8
16
40 --- 50
5.53 --- 6.92
Bottom Plate --- Crankcase Compressor Foot
3/8
16
40
50
5.53
6.92
Cylinder Head
7/16
14
55 --- 60
7.61 --- 8.30
Motor End Cover --- Crankcase
5/8
11
25 --- 30
3.46 --- 4.15
Crankshaft
5/8
18
60 --- 75
8.30 --- 10.37
Oil Bypass Plug --- Crankcase
#10
32
4 --- 6
0.55 --- 0.83
Oil Pump Drive Segment
1-1/2
18 NEF
35 --- 45
4.84 --- 6.22
Oil Level Sight Glass
NEF --- National Extra Fine
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