Ace FMC-HYD Series Instruction Manual - Page 8

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Ace FMC-HYD Series Instruction Manual
Service videos are available on our website at www.AcePumps.com
DISASSEMBLY INSTRUCTIONS
1.
Remove four 5/16" socket head cap screws from rear of motor.
2.
Remove motor and seal support spacer.
3.
Remove rear internal bearing snap ring.
4.
Remove four 3/8" X 3/4" hex head cap screws from mounting frame.
5.
Remove volute.
6.
Remove 3/8" lock nut from shaft. Insert a flat file into impeller vane to hold stationary.
Caution: Excess torque may cause damage to plastic impellers.
7.
Press shaft out of impeller using one 5/16" socket head cap screw from step #1.
8.
Remove impeller, key, and rotating seal member.
9.
Press shaft/bearing assembly out of frame.
10. Remove stationary seal member by prying out with a screwdriver or pressing out from motor
end of pump housing.
11. Remove O-ring from shaft groove.
Note: If you are only replacing the pump seal: 1) press the shaft/bearing assembly into the
frame, 2) reinstall the rear internal bearing snap ring, and 3) skip to Assembly Step #8.
12. Press bearings off of shaft.
13. Remove forward internal bearing snap ring.

PUMP REPAIR KITS

Ace hydraulic pump repair kits include the mechanical seal and volute O-ring. Pumps manufactured
after January 1996 use the volute O-ring and have a groove machined in the volute. Older pumps
require a gasket volute seal. Note: Do not use both the O-ring and gasket.
FMC-75-HYD Series
FMC-HYD Series
FMC-150-HYD Series
FMC-150F-HYD Series
FMC-150SP-HYD Series
FMC-200-HYD Series
Disassembly Steps 1-5
Pump Model
Motor
Seal Support Spacer
Pump
Standard Seal
BAC-7V
RK-GE-75
RK-FMC
RK-FMC-150
RK-FMC-150
RK-FMC-150
RK-FMC
6
Severe Duty Seal
BAC-7SC
RK-GESC-75
RK-FMCSC
RK-FMCSC-150
RK-FMCSC-150
RK-FMCSC-150
RK-FMCSC