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MDE-4334C Atlas Start-up and Service Manual · April 2008
Hydraulic/Mechanical Components
General Service Procedures
Flanged and Compression Tube Fittings
Recommended Torque
Pipe
in-lbs
ft-lbs.
1/8 inch
40 - 45
1/16 inch
49 - 55
1/4 inch
58 - 65
5/16 inch
72 - 80
3/8 inch
9 - 10
1/2 inch
19 - 21
5/8 inch
26 - 29
3/4 inch
38 - 42
7/8 inch
49 - 54
Self-contained Pumping Units
Recommended Torque
Unit
in-lbs
Nm
Pump head (tightened in star pattern)
200
23
Strainer cover
150
17
Rear cover
200
23
Meter Bolts
Recommended Torque
Bolt (In Order)
in-lbs
Kg-meters
1
Cylinder cover gasket
130 ± 10
1.50 ± 0.12
2
Piston and connecting bar
35 ± 5
0.40 ± 0.06
3
Shaft seal cap
25 ± 5
0.30 ± 0.06
4
Lower bearing housing
75 ± 10
0.90 ± 0.12
5
Packing retainer
20 ± 5
0.25 ± 0.06
6
Body cover
130 ± 10
1.50 ± 0.12