beautypg.com

Magnum Venus Plastech Flex Molding Process MKVI Mix User Manual

Page 37

background image

MKVI Mix Meter System Operations Manual

Rev. 08/2013

Page | 37

1.

Remove Catalyst pump from ratio arms. Disconnect inlet and outlet hoses at swivel
fittings


2.

Unscrew Bottom Block (0522) and Top Block (0528) from Outer Tube (0526).


3.

Examine bottom Block Ball Bearing (0523) for pitting/damage. Replace if
necessary.


4.

Replace Bottom Seat O-ring (4254).


5.

Slide pump bore tube out of top block and remove from piston shaft


6.

Replace pump bore outer tube O-rings (3265) and lubricate using silicone grease.


7.

Unscrew Piston Seal Body from shaft. Examine piston ball and spring. Replace if
necessary.


8.

Unscrew piston seal retainer. Remove and replace piston seal.


9.

Remove top block from piston shaft. Unscrew top seal block from top block.
Remove shaft seals from top seal block and replace.


10. Remove felt washers and replace.

11. Reassembly is a reversal of the above procedure. When refitting the piston seal

retainer (0531) clean threads thoroughly. Place a small amount of Loctite 243 or
similar Thread lock compound on the threads and screw in finger tight only.