Grundfos MQ 3-35 Service Manual

28.04.2003
GB
8 / 24
3.3 Replacing the pressure tank
3.3.1 Removing the pressure tank
1. Remove the cover pos. 43.
2. Remove the pressure tank pos. 42 including the O-ring pos. 44. It can be loosened using the fingers.
3. If the union nut including O-ring pos. 44 is not removed with the pressure tank, remove it using a 42 mm
socket.
3.3.2 Fitting the pressure tank
1. If the pressure tank pos. 42 has been screwed out of the union nut, lubricate the threads of the pressure
tank with Loctite 5331 and screw the tank into the union nut.
2. Fit the O-ring pos. 44 and screw the pressure tank pos. 42 into the motor housing pos. 180 by hand.
3. Fit the cover pos. 43.

Grundfos MQ 3-35 Specifications

General

Power Consumption	850 W
Maximum Head	35 m
Inlet/Outlet Size	1 inch
Weight	13 kg
Pump Type	Self-priming centrifugal pump
Power Supply	220-240V, 50Hz
Liquid Temperature Range	0°C to +35°C
Material	Stainless steel