OM-05514
SUPER T SERIES
MAINTENANCE & REPAIR
PAGE E - 12
As the assemblies separate, the flexible portion of
the coupling assembly (3) will remain on the shaft.
To remove the coupling from the shaft, unscrew the
two allen head setscrews from the bushing (2).
Screw one of the setscrews into the puller hole on
the circumference of the bushing. As the coupling
and bushing separate, remove the bushing, and
slide the coupling off the shaft. Remove the shaft
key (17, Figure 4).
It is not necessary to remove the outer ring of the
coupling from the engine flywheel unless the cou
pling must be replaced. To remove the ring, disen
gage the hardware (4 and 5) securing it to the fly
wheel.
Remove any leveling shims used under the casing
mounting feet. Tie and tag the shims for ease of
reassembly.
Move the pump end to a clean, well equipped shop
area for further disassembly.
Loosening Impeller
(Figure 4)
Before attempting to loosen the impeller, remove
the seal cavity drain plug (25) and drain the lubri
cant. This will prevent the oil from escaping as the
impeller is removed. Clean and reinstall the drain
plug.
With the pump end separated from the engine and
the back cover (23, Figure 3) removed, wedge a
block of wood between the vanes of the impeller
and the pump casing to prevent rotation.
If removed, install the shaft key (17) in the shaft
keyway. Install a lathe dog on the drive end of the
shaft (15) with the “V” notch positioned over the
shaft key.
With the impeller rotation still blocked, see Figure 6
and use a long piece of heavy bar stock to pry
against the arm of the lathe dog in a counterclock
wise direction (when facing the drive end of the
shaft).
Use caution
not to damage the shaft or key
way. When the impeller breaks loose, remove the
lathe dog, key and wood block.
NOTE
Do not remove the impeller until the rotating assem
bly has been removed from the pump casing.
Turn
Counterclockwise
Lathe Dog Arm
“V” Notch
Shaft Key
Impeller Shaft
Lathe Dog
Setscrew
Heavy
Bar Stock
Figure 6. Loosening Impeller
Rotating Assembly Removal
(Figure 3)
Remove the hardware (15 and 16) securing the ro
tating assembly to the pump casing. Separate the
rotating assembly by pulling straight away from the
pump casing. Tie and tag the rotating assembly
shims (17) for ease of reassembly.
NOTE
An optional disassembly tool is available from the
factory. If the tool is used, follow the instructions
