To refit, Rear wear ring, Pump type – Hale SMR-U User Manual

Page 10

To Refit

Refitting is a reversal of the removal instructions. It is recommended that new O
rings are fitted to impeller end face and shaft and a new pair of lockwashers are
fitted before refitting the impeller nut which should be tightened to 400Nm (295 lbs ft)
torque. To refit front cover plate, a new O ring should be fitted to the cover plate
spigot before assembly.

Rear Wear Ring

The rear wear ring (accessible after the removal of the low pressure impeller) is
retained by 4 off M8 socket head screws. After removal of these screws, the rear
wear ring may be jacked out by means of two screws inserted into the adjacent
tappings.

Checking the wearing diameters of rear wear ring

2010/3010

X 4010

Pump Type

Dia X

WS2010 and

WS 3010

134.12mm

WS4010

169.62mm

To Refit

Clean all surfaces before re-assembly. Apply Loctite 242 to screw threads before
refitting and tightening.