Table 6-3. Recommended Bolt Torque Values

BOLT DIA.

THREADS

TORQUE

MKG

 

FREE SPINNING

 

#4

#6

#8

#10

1/4

5/16

3/8

7/16

1/2

9/16

5/8

3/4

40

32

32

24

20

18

16

14

13

12

11

10

5.2in-lbs

9.6in-lbs

20 in-lbs

23 in-lbs

75 in-lbs

11 ft-lbs

20 ft-lbs

31 ft-lbs

43 ft-lbs

57 ft-lbs

92 ft-lbs

124 ft-lbs

0.05

0.11

0.23

0.26

0.86

1.52

2.76

4.28

5.94

7.88

12.72

17.14

NONFREE SPINNING (LOCKNUTS ETC.)

1/4

5/16

3/8

7/16

1/2

9/16

5/8

3/4

20

18

16

14

13

12

11

10

82.5in-lbs

145.2in-lbs

22.0ft-lbs

34.1ft-lbs

47.3ft-lbs

62.7ft-lbs

101.2ft-lbs

136.4ft-lbs

0.95

1.67

3.04

4.71

6.54

8.67

13.99

18.86

Table 6-4. Wear Limits For Compressors

 

FACTORY MAXIMUM

FACTORY MINIMUM

MAXIMUM WEAR

PART NAME

BEFORE REPAIR

 

 

 

 

 

 

 

 

 

 

 

INCHES

MM

INCHES

MM

INCHES

MM

 

 

 

 

 

 

 

MAIN BEARING

 

 

 

 

 

 

Main Bearing Diameter

1.6268

41.3207

 

 

.0020

0.0508

Main Bearing Journal Diameter

 

 

1.6233

41.2318

.0020

0.0508

PUMP END

 

 

 

 

 

 

Main Bearing Diameter

1.3760

34.9504

 

 

.0020

0.0508

Main Bearing Journal Diameter

 

 

1.3735

34.8869

.0020

0.0508

 

 

 

 

 

 

 

CONNECTING ROD

1.3768

34.9707

 

 

.0020

0.0508

Piston Pin Bearing

 

 

0.6878

17.4701

.0010

0.0254

 

 

 

 

 

 

 

CRANKPIN DIAMETER

 

 

1.3735

34.8869

.0025

0.0635

Throw

1.072

27.2288

1.070

27.1780

 

 

THRUST WASHER (Thickness)

0.154

3.9116

0.1520

03.8608

.0250

0.6350

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

6-33

T-268-07

SECTION 6

Page 127
Image 127
Carrier 69NT40-511-199, 69NT40-521 manual Recommended Bolt Torque Values, Bolt DIA Threads Torque MKG Free Spinning