Zamboni 525 - HC EDC Control Repair

EDC/HDC orifice repair
P10 6 65 5E
936
902
921
3/ 8 in
115
9/ 16 in
1403
1404
920
3/ 8 in
2161
934
901
HC EDC Control Repair
1. Using a 5 mm internal hex wrench, remove the six cap screws (D250).
2. Remove the control module and gasket (D150). Discard the gasket.
3. Inspect the machined surfaces on the control and top of the pump. If you find any nicks or scratches,
replace the component.
4. Install a new gasket (D150).
Ensure that you install the dowel pins (D300) in the housing before installing the control.
5. If you removed screen (D084), install a new one. Install with the mesh facing outward (see drawing).
Service Manual
Series 40 M46 Variable Pumps
Minor repair
40 11026743 • Rev BA • June 2014