Magnum Venus Plastech Megaject MKIV Revision 1_6 - Manual (Page 37)

Megaject MK V Issue 1_6 Page 37 of 41
Solvent Pump
See drawing 22036
Warning : Before commencing any work on the solvent system, ensure that the working
area is free from any sources of ignition.
To Test:
Turn on air supply to machine. Place injection nozzle in a waste container. Press solvent flush
button. Check solvent output from injection nozzle. Check inside tank during the flush cycle.
If air bubbles appear from the bottom of the solvent pump, either the foot valve or the
threaded joints in the solvent pump will require servicing.
To service solvent pump foot valve:
Procedure
1. Remove air supply from machine.
2. Remove 6mm blue air supply pipe. Mark position of 6mm clear solvent feed pipe
with tape. Unscrew fitting and remove pipe from top of solvent pump complete
with fitting cap and PTFE olive
3. Unscrew M8 cap screw holding tank to machine frame and remove tank.
4. Unscrew red solvent cap. Remove whole pump assembly. Solvent will drain from
the pump assembly as it is lifted. To completely empty solvent pump, turn upside
down and allow remaining solvent to pour out of solvent pipe fitting.
5. Secure pump body and unscrew solvent pump foot valve.
6. Examine filter for blockage and replace as necessary.
7. Using correct size drift, remove roll pin from foot valve.
8. Remove foot valve plunger. Replace O ring. Ensure correct size and grade O ring
is used.
9. Re-assemble foot valve using PTFE tape and/or silicone sealant on threads.
10. Replace pump assembly in tank and refit to machine frame.
11. Refit air supply and solvent feed pipes. Ensure that solvent feed pipe is pushed
through the fitting to the marked position and fitting olive is in the correct
position before tightening. Do not overtighten.