Oasis Ace MAX Series, Instruction Manual, Page: 14 / 20

14
1.
Mark orientation of volute, seal plate, frame, and motor to assist in reassembly.
2.
Remove (2) socket head motor screws and washers with 5/16” hex wrench.
3.
Remove hydraulic motor.
Note:
Tap with a non-marring hammer if necessary. See page 10 step 2 for alternate method.
4.
Remove snap ring from behind rear pump bearing.
5.
Remove cap from air fill valve and press stem to release reservoir pressure.
6.
Remove hex drain plug with 7/8” wrench and drain barrier fluid into a clean pan.
Note:
Recycle or dispose of used fluid the same as motor oil.
7.
Remove (4) volute hex head cap screws and spacers with a 9/16” wrench.
8. Remove volute and O-ring.
9.
Remove impeller acorn nut with a 1” socket.
Note:
Turn counterclockwise to remove. Insert a flat file into an impeller vane to hold stationary.
10.
Remove impeller and key from shaft.
11.
Remove (4) socket head seal plate cap screws with 5/16” hex wrench.
Note:
Two screws were used on early models.
12.
Remove seal plate slowly and place shop towel over shaft end for protection. Remove O-ring.
Danger:
Compression of seal spring may cause part of seal to fly off without warning.
13.
Slide rotating seal assembly ((2) seal faces and (1) spring) off shaft and discard.
14.
Install impeller nut on shaft end to protect threads.
15.
Press or tap (non-marring hammer) shaft/bearing assembly from impeller end until clear of
stationary seal face in mounting frame.
16.
Use a screw driver to pry stationary seal seats from frame and seal plate.
Note:
If replacing shaft seal only - skip to Assembly Instructions step 8.
17.
Continue to press or tap shaft/bearing assembly out of frame towards motor end.
18. Remove slinger from shaft.
19.
Remove snap ring from shaft on impeller side of front pump bearing.
20.
Use a press to remove bearings from shaft. Press bearings off each end of shaft.
21. Remove shaft spacer.
DISASSEMBLY INSTRUCTIONS
Ace pump Oasis WetSeal repair kits include a dual shaft seal, O-rings,
and barrier fluid to refill the seal reservoir.
Pump Model Repair Kit EDP#
FMC-750F-HYD Series RK-FMC-750
52724
Shaft Seal Only EDP# Recommended For
BAC-7-750V
40147 all materials and applications
WetSeal Technology
O
ASIS
T M
Frame
Shaft/Bearing Assy.
Motor
Drain Plug
Volute Cap Screw (4)
Seal Plate Cap Screw (4)
Volute
Impeller
Seal Plate
O-ring
Spacer (4)
Rotating Seal Assy.
Stationary
Seal Seats
FMC-750F-HYD REPAIR
REPAIR KIT & SEAL
Pad
O-ring