Carrier 69NT40-541-001, Operation And Service

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T-316 7–46
CYLINDERS
Bore 2.0010 50.8254 .0020 0.0508
Piston (Diameter) 1.9860 50.4444 .0020 0.0508
Piston Pin (Diameter) 0.6873 17.4574 .0010 0.0254
Piston Ring Gap 0.013 00.3302 0.0050 00.1270 .0250 0.6350
Piston Ring Side Clearance 0.002 00.0508 0.0010 00.0254 .0020 0.0508
Table 7–7 Compressor Torque Values
SIZE
DIAMETER
(inches)
THREADS
PER INCH
TORQUE RANGE
USAGE
ft-lb N.m
1/16 27 (pipe) 8 - 12 11 - 16 Pipe Plug - Crankshaft
1/8 20 (pipe) 6 - 10 8 - 13 Oil Return Check Valve - Crankcase
1/4 20 (pipe) 20 - 25 27 - 34 Pipe Plug - Gauge Connection
1/4 20 10 - 12 13 - 16 Connecting Rod Capscrew
1/4 28
12 - 15 16 - 20 Baffle Plate - Crankcase
12 - 16 16 - 22 Side Shield
6 - 10 8 - 13 Oil Pump Drive Segment
12 - 16 16 - 22 Unloader Valve
5/16 18
16 - 20 2 - 27
Cover Plate - Plate End
Bearing Head
Terminal Block Cap Screws
20 - 30 27 - 41
Suction Valve
Discharge Valve
3/8 16 40 - 50 55 - 70
Pump End Bearing Head
Bottom Plate - Crankcase Compressor Foot
Cylinder Head
7/16 14 55 - 60 76 - 83 Motor End Cover - Crankcase
5/8 11 25 - 30 34 - 41 Crankshaft
5/8 18 60 - 75 83 - 103 Oil Bypass Plug - Crankcase
#10 32 4 - 6 5 - 8 Oil Pump Drive Segment
1-1/2 18 NEF 35 - 45 48 - 62 Oil Level Sight Glass
NEF - National Extra Fine
Table 7–6 Wear Limits For Compressors (Continued)