Service Manual 73
Page 12 of 32
Install New Cover and Idler Gear
See Table 4 for proper torque specifications.
PLACE IDLER ASSEMBLY ON COVER:
Once the idler is on the cover, ensure that it rotates freely.
INSTALL COVER AND IDLER ASSEMBLY:
Place the gasket on the cover.
Tilt the top of the cover away from the pump until the crescent can be fitted into the rotor I.D.
Then rotate the idler until its teeth mesh with the rotor teeth.
Assemble with cover bolts.
IF REQUIRED, INSTALL RELIEF VALVE TO THE HOUSING OR COVER:
Prior to reinstalling the relief valve back onto the pump housing or cover, ensure that the
valve is clear of any foreign material and that the flow ports are unobstructed.
Place the valve gasket on the housing or cover.
Assemble the valve on the pump housing or cover with valve screws. Make certain the
adjusting screw of the valve points towards the suction port.
!
CAUTION
The adjusting screw of the valve must point towards the suction port.
The end clearances can now be set. Refer to instructions on page 27.
Fastener Size
M6
6
-
9
8
-
12
M8
14
-
21
19
-
28
M10
30
-
40
41
-
54
M12
55
-
65
75
-
88
foot-pounds
Newton-meters
Table 4 – Fastener torque requirements
REFIT COUPLING AND GUARD:
If you have been able to take advantage of the modular design of this pump, the complete
overhaul has been accomplished without removal of the housing from the base plate or
piping. Thus, your original coupling alignment should be intact.
Refit the coupling and spacer, double-check alignment and complete any final adjustments.
