Waterous CR Overhaul Instructions Download Page 4

F-1031,  Section 4214 

Page 4 of 10 

 

 

 

Disassembly - Remove Pump from Transmission or Bearing Housing

 

Removal of End Yoke

 

Removal of Oil Seal, Throttle Bushing, Mechanical Seal Stationary Ring

 

1. 

Stand the pump in a vertical position with the intake adapter flange of the pump 
body volute facing down. 

2. 

Note the orientation of the pump discharge flange relative to the transmission as 
the pump must be reassembled with the same relation. 

3. 

Remove the eight (8) hex nuts and lock washers attaching the pump volute to the 
transmission. 

4. 

With a hoist, lift the pump volute body off of the transmission. If the body does not 
break free, tap the body with a soft hammer while lifting until separation is achieved. 

5. 

Once the pump volute body is free of the transmission, remove the O-ring from the 
groove in the transmission pump mounting flange.

 

1. 

Remove the oil seal from the bore in the volute body. 

2. 

From the transmission side of the body, drive the throttle bushing out of the body 
bore. This will also remove the mechanical seal stationary ring. 

3.

 

Inspect the throttle bushing per instructions on Page 16 to determine if replace- 
ment is required.

 

 
 

 

 

 

 

 

Summary of Contents for CR

Page 1: ...outh St Paul Minnesota 55075 USA 651 450 5000 www waterousco com General Overhaul Information 2 Disassembly Remove Intake End of Pump 3 Remove Pump from Bearing Housing or Transmission 4 Inspection an...

Page 2: ...lint free cloths to wipe off components Before reassembling a pump or its components be sure to clean them thoroughly Flush out these components and related parts with clean water Use a stiff brush t...

Page 3: ...the intake adapter off of the pump body volute Remove and discard the O ring Remove the cotter pin impeller locknut and washer from the end of the im peller shaft 1 Remove the impeller Tapping the imp...

Page 4: ...ck washers attaching the pump volute to the transmission 4 With a hoist lift the pump volute body off of the transmission If the body does not break free tap the body with a soft hammer while lifting...

Page 5: ...opposite side using a feeler gauge Do not bottom the wear ring against the bottom of the groove in the impeller Ball Bearings When cleaning bearings bearing manufacturers recommend placing them in a...

Page 6: ...e The journal may be polished with a fine emery cloth however any polishing that leaves a spiral pattern may lead to an oil leak If a groove has been worn in the sleeve it can be reused by turning it...

Page 7: ...the bore in the volute body If it cannot be seated by hand lightly tap into place with piece of wood being careful not to scratch or mar the lapped face d Wipe the lapped face of the stationary ring w...

Page 8: ...the tape can be removed once the bellows is installed 8 Install the impeller and intake adapter see next page for instructions b Apply a few drops of seal lubricant on the inside of the seal bellows...

Page 9: ...he witness marks made during disassembly Ensure the intake adapter holes and volute body tapped holes are aligned 6 Tap the intake adapter into position in the volute body bore 7 Install the sixteen 1...

Page 10: ...g pump Close all valves Be sure to evacuate all air from pump 4 Apply water pressure to pump for 15 minutes Do not exceed 350 psi 24 2 bar With a portable light check pump for leaks If leaks are disco...

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