Download Tapflo Metal Drum Pump - User Manual

3.
3.5
3.5.1
MAINTENANCE
Dismantling of aluminium and cast iron pumps
The numbers put in brackets, refer to the part numbers in the spare part drawings and spare part
lists in chapter 4.
STOP
Before the dismantling procedure
Be sure to drain all liquid from the pump. Cleanse or neutralize the pump thoroughly. Disconnect
the air connection and then the suction and discharge connections.
3.5.2
Mainparts
Fig 5.1. Unscrew the screws (37) on one side of
the pump housing (11). Carefully lift off the "loose
housing". Turn and lift the suction and discharge
connections (13). Upend the pump and unscrew
the other housing (11).
Fig 5.3. Pumps TX820:
Unscrew the domed nuts of the stopper assembly. Remove the stopper flanges, washers and
o-rings. Carefully pull out the stopper rod.
IOM manual Tapflo metal series pumps
11
Fig 5.2. Pumps TX25 up to TX420:
In order to take out the valve balls (23), unscrew
the valve ball stop (22) in the housing and the
valve ball is free. Take out the green gaskets (18)
and replace with new ones.