Howden WRV, Service Manual

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9.1 TORQUE SPECIFICATIONS
Fig.73 Torque Specifications for Fasteners on WRV163 compressors.
PART NUMBER TYPE OF FASTENER TORQUE lb ft TORQUE Nm
R25055
40mm Locknut
Actuator Piston
206 150
G26019
¼” UNC x 5/8” Long Set Screw
Piston Seal Retaining Plate
4 5.5
M0216050
M12 x 60 Long Capscrew
Cylinder to outlet cover
37 50
M0313050
½” x 2” Long Set Screw
Inlet and Outlet Casings
40 55
R16154
Locknut M42
Slide Valve
165 225
G25062
½” x 1” Long Capscrew
Thrust Bearing Clamp Plate
10 14
G39007
50mm Locknut
Thrust Bearing Retaining Locknut
210 284
G25058
3/8” x 1” Long Capscrew
Rotor Cover Plates
18 25
G29012
M16 x 40mm Long Capscrew
Cylinder End Cover to Cylinder
88 120
G21015
5/8” x 2” Long Setscrew
Superfeed Flange
80 108
Fig.74 Torque Specifications for Fasteners on WRV204 compressors.
PART NUMBER TYPE OF FASTENER TORQUE lb ft TORQUE Nm
R25055
40mm Locknut
Actuator Piston
150 206
G26019
¼” UNC x 5/8” Long Set Screw
Piston Seal Retaining Plate
4 5.5
M0216050
M12 x 60 Long Capscrew
Cylinder to outlet cover
37 50
M0316060
M16 x 60mm Long Set Screw
Inlet and Outlet Casings
88 120
R20313
36mm Locknut
Slide Valve
125 167
G29012
M16 x 40mm Long Capscrew
Thrust Bearing Clamp Plate
10 14
G27001
M12 x 40mm Long Setscrew
Bearing Retaining Plate
69 95
G29007
M10 x 30 Long Capscrew
Rotor Cover Plates
22 30
G29012
M16 x 40mm Long Capscrew
Cylinder End Cover to Cylinder
88 120
G21047
3/4” x 1-3/4” Long Setscrew
Superfeed Flange
140 190