Magnum Venus Plastech PATRIOT SSB Commissioning and instruction - Manual (Page 13)

SSB_Auto Instructions Issue 05
Page13
9.1 Resin pump service.
In order to service internal resin pump seals first pump out any resin from internals by placing
system on recirculation. It is also advisable to clean internals with solvent after resin removal before
service. Do this by recirculating 5 litres solvent through resin pump and finally pumping the solvent
out of system.
Isolate machine from air supply
Remove catalyst front guard and lower stainless steel facia guard. (M5 side chassis screws)
9.2 Piston Seal
To access Piston seal (part 0555) remove 4 x M8 securing bolts (Part 0559). Slide Pump cylinder
(0548) and lower gold block assembly (0558) from piston.
The piston seal may now be removed by unscrewing seal retainer nut (0556). Replace seal
observing that the seal lip is facing UP and valve ball (0554) is placed back into cage (0551)
9.3 Shaft seal
To replace the shaft seal (0549) it is necessary to remove the top block (0546) from the machine.
To do this first remove the four M8 retaining bolts and nuts from the pump retaining chassis
mounting plate fixed through pump top block (0546).
Unscrew piston from air motor shaft and ratio drive block using suitable spanners at top of piston
(0550)
Remover cylinder and lower block as described in section 9.2 above.
Draw down piston assembly from top seal block this will now provide access to the top pump shaft
seal. Using circlip pliers remove large circlip (0544). Remove washer (0545). Remove old seal
(0549) and discard. Install new seal and re assemble pump in reverse order. Note- O ring seals
(0547) may be replaced during these service operations if found to be damaged.
Ensure pump assembly is evenly retightened with M8 tie bolts (0559)
When Pump is reinstalled in machine, renew pump seal lubricant in top seal block (0546)