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STEP 6
Remove discharge check valve components shown Clean all
items as required
INSPECT PORTING IN MAIN PUMP BODY FOR
ANY DEBRIS AT THIS TIME. IF CLEANING IS
REQUIRED PLEASE REFER TO 'PLUNGER SEAL
MAINTENANCE' (PAGE 28) - STEPS 1-5 TO
REMOVE PUMP BODY. ONCE REMOVED CLEAN
THOROUGHLY, RE-INSTALL AND PROCEED
STEP 7
Insert NEW (-012) O-ring* [B] into check valve seat followed
by existing check valve ball as shown
*Ensure O-ring material is compatible with chemical used with System
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36
GENERAL SAFETY
A
B
STEP 8
Thread check valve assembly into fluid end body [Torque 90-
100 In-lbs]
STEP 9
Remove O-ring [A] from discharge check valve seat [B] Clean
seat and insert NEW (-012) O-ring*
*Ensure O-ring material is compatible with chemical used with System
A
B
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