Impeller - WACKER Group PG 2 Repair Manual

Disassembly/Assembly Procedures

5.11 Impeller

See Graphic: wc_gr003500
5.11.1 Remove the pump housing. See section Pump Housing.
5.11.2 Unscrew the impeller
5.11.3 Note: If the impeller is hard to remove, tap it with a plastic mallet. Do
5.11.4 Remove the four screws (5) and washers (6) securing the rear pump
5.11.5 Secure the rear pump flange (2) to the engine with the screws (5) and
5.11.6 Install the mechanical seal. See section Replacing the Mechanical
5.11.7 Screw the impeller (1) clockwise onto the engine shaft. DO NOT apply
wc_tx000608gb.fm
CAUTION: When replacing either the impeller (1) or the rear pump
flange (2), make note of the I.D. numbers found on back of each
component casting (3). MAKE SURE THE REPLACEMENT PARTS
HAVE THE SAME NUMBER MARKINGS—THE PARTS ARE NOT
INTERCHANGEABLE.
Removal:
not lose any adjusting shims when removing the impeller.
flange (2) to the engine.
Installation:
washers (6). Apply Loctite 271 or an equivalent high-strength
threadlocker to the screws and torque them to 22 Nm (16 ft.lbs.)
Note: Install rear pump flange with the drain channel facing down.
Seal.
any threadlocker to threads of the impeller or the engine shaft.
counterclockwise from the engine shaft
(1)
44
PG Repair
.
(4)