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Step 11:

  

Bolt the head assembly into the housing with the plunger lining up to the cross head assembly 

and insert the drive clip. 

 
Step 12:

  

Install gasket and cover with wing screws. 

 

Step 13:

  

Mount the motor onto the reducer. 

 

Housing Disassembly  

The following Steps 3 through 9 are for a single housing assembly. 
Step  1:   

Disconnect  power  source,  ensure  all  pressure  is  removed  from  pump  head  assembly  and 

isolate  fluid  discharge  and  suction  lines.  Open  and  remove  priming  valve.  Disconnect  fluid 
discharge and suction lines. 

Step  2:   

Remove  the  motor.  Two  threaded  holes  in  the  reducer  flange  are  provided  to  assist  motor 

removal.

 

Step 3:  

Remove wing screws, covers and gaskets from housing.

 

Step 4:

  Remove drive clip from plunger/crosshead assembly. Unbolt and remove head assembly from 

housing.  See  Pump  Head  Disassembly  instructions  for  further  disassembly  of  pump  head 
assembly.

 

Step 5:

 

 

Remove bolts holding housing onto base plate and slide it off the drive shaft. The cam key must 

be aligned horizontally to allow drive shaft removal.

 

Step 6:

  Remove the eccentric cam assembly out of the crosshead assembly and housing. 

Step 7:

  If necessary, press out the eccentric cam from the cam bearing. 

Step 8:

  Slide the crosshead assembly out of the housing. 

Step 9:

  

Push out crosshead pins holding stroke adjustor and adjusting screw assembly in the crosshead 

assembly. Unscrew the stroke adjustor off the adjusting screw assembly.

 

Step 10:

  

Unscrew the fasteners on the reducer and slide out the drive shaft. 

Note: The keys on the drive 

shaft are not attached and can fall out.

 

Step 11:

  

Unbolt the reducer from the base plate. 

 

*** *** *** *** *** 

INSPECTION 

Inspect  all  components  for  damage.  Replace  or  repair  parts  as  necessary.  The  following  is  a 
guideline of what to inspect: 

 

Inspect all threads, seals and packing for damage. 

 

Inspect body seal areas for corrosion, pitting, or damage. Seal areas on the body include the 
packing area and the area below the top seat and ball cage. 

 

Inspect balls, top seat, bottom seat and ball check spring for corrosion or damage. 

 

Inspect plunger for wear, scarring, or damage. 

 

Inspect ratchet and bearing for wear or damage. 

 

Inspect housing and all other components for damage. 

9001-20 Street NW, Edmonton, Alberta, Canada T6P 1K8 

        Phone: 780-430-1777      

      Fax: 780-449-5233 

  

Email:

 

[email protected]

 

 

 

 

 

 

www.bruinpumps.com

 

 

 

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