WACKER Group 0007659, Руководство по ремонту

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Disassembly/Assembly Procedures PG Repair
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5.11 Impeller
See Graphic: wc_gr003500
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:
5.11.1 Remove the pump housing. See section Pump Housing.
5.11.2 Unscrew the impeller
(1)
counterclockwise from the engine shaft
(4)
.
5.11.3 Note:
If the impeller is hard to remove, tap it with a plastic mallet. Do
not lose any adjusting shims when removing the impeller.
5.11.4 Remove the four screws (5) and washers (6) securing the rear pump
flange (2) to the engine.
Installation:
5.11.5 Secure the rear pump flange (2) to the engine with the screws (5) and
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.
5.11.6 Install the mechanical seal. See section
Replacing the Mechanical
Seal.
5.11.7 Screw the impeller (1) clockwise onto the engine shaft. DO NOT apply
any threadlocker to threads of the impeller or the engine shaft.