WACKER Group 0007659, Repair Manual

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Disassembly/Assembly Procedures PG Repair
wc_tx000608gb.fm
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5.10 Pump Housing
See Graphic: wc_gr003499
Removal:
5.10.1 Remove the drain plug (5) from the bottom of the pump housing and
drain the water from the pump housing.
5.10.2 Remove the four screws (6) securing the pump housing (7) to the back
pump flange (8).
5.10.3 Lightly tap the pump housing with a plastic mallet to break the seal, and
remove the pump housing.
5.10.4 Thoroughly clean any debris from the pump housing (7), volute (9),
and flange (8).
5.10.5 Remove the volute (9) and the clean O-ring (10) and the intake port.
Installation:
5.10.6 Check the clearance between the impeller (11) and the volute (9). Add
shims as required. See section
Adjusting Impeller Clearance.
5.10.7 Inspect the O-rings (12 and 10). Grease the O-rings lightly before
assembly. Make sure the areas where the O-rings seat are clean.
5.10.8 Mount the pump housing (7) to the flange (8). Secure evenly with the
screws (6). Torque the screws to 37 Nm (26 ft.lbs.).
Note: The pump housing MUST seal flush around the rear flange.
Replace the pump flange if it appears warped or bent.