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Torque Settings
Size
Type
Torque ft-lb
Drive Bearing Housing
½" – UNC
Cap Screw
45
Oil Pump Housing to Crankcase
½" – UNC
Cap Screw
45
Final Stage Piston Retaining Nut
½" – UNF
-
30
Rod Seal Housing to Cylinder
½" – UNF
Cap Screw
45
Rod Seal Housing to Cylinder
7/16" - UNF
Cap Screw
40
Tandem Piston (5-1/4") to Crosshead
3/8" – UNC
Cap Screw
25
Tandem Piston (3" to 3-1/2") to Piston
Rod Lock Bolt
3/8" - UNF
Cap Screw
27
Split Flange Clamps
3/8" - UNF
Cap Screw
20
Gudgeon Pin End-CapRetaining Bolt
Nut
3/8" UNF
Bolt / Nut
30
Mechanical Seal Retainer
5/16 " -UNC
Cap Screw
15
Bearing Cover Plate
5/16" - UNC
Cap Screw
15
Oil Pump Housing Seal Cover
5/16" -UNC
Cap Screw
15
Oil Pump Retainer
5/16" –UNC
Cap Screw
17
Final Stage Piston Retaining Plate
5/16" – UNC
Cap Screw
22
Piston “Power Nut” Locking Screw
(10” Piston)
5/16” – UNF
Grub Screw
12
Rod Wiper Retainer Plate
5/16” – UNF
Cap Screw
18
Piston Rod Balance Nut Lock Screw
(Power Nut type)
5/16" UNF
Grub Screw
12
Piston Rod Balance Nut Lock Screw
(Standard Balance Nut)
¼" UNF
Grub Screw
6
Piston Rod Locking Screw
¼" UNF
Grub Screw
6
Table 6 Torque Settings
Intermech Ltd.
BBR-6015-2 Compressor Service Manual
