MICROMATIC.COM | 866-327-4159 POWER PACK SERVICE MANUAL | 11
CHANGING GLYCOL PUMP
(MMPP4301-EP)
1. Unplug unit from receptacle.
2. Remove four (4) screws holding pump to bath lid.
3. Cuttubingslightlyaboveoutletttingonpump.
4. Remove pump through hole in top of bath lid.
5. Insert new pump through opening in lid.
6. Attach pump outlet hose and clamp with stainless steel clamp.
7. Replace mounting screws and plug unit into receptacle.
CHANGING GLYCOL PUMP
(MMPP4301, MMPP4301-WC, MMPP4301-PKG, MMPP4301-PKG-WC, MMPP4302, MMPP4302-WC,
MMPP4302-PKG, MMPP4302-PKG-WC, MMPP4303-PKG, MMPP4303-PKG-WC, MMPP4303-PKG-3,
MMPP4305-PKG, MMPP4305-PKG-WC, MMPP4305-PKG-3, MMPP4305-PKG-WC3, MMPP4307-PKG,
MMPP4307-PKG-WC, MMPP4307-PKG-3, MMPP4307-PKG-3-WC, MMPP4307-PKG-4, MMPP4307-PKG-4-WC)
Note: A pinch off tool is required to complete this repair
1. Unplug unit from receptacle.
2. Pinch off glycol supply line to bottom of pump allowing enough room to remove clamp safely.
3. Holdpumprmlyandloosenclampbetweenpumpandmotor.
4. With clamp loose remove pump and drive key.
5. Install new key and pump by reattaching clamp making sure alignment of key is correct between pump
and motor.
6. Reattach glycol supply hose and install clamp.
7. Remove pinch off tool and plug unit into receptacle.