Maintenance; Schedule; Clean The Pump Shafts; Disassemble And Clean The Dispense Head (Md2 Valve Only) - Graco PR70 Operation & Maintenance Manual

Maintenance

Maintenance

Schedule

Action
Check Desiccant Dryer (only
installed if chemical is moisture
sensitive)
Check Tanks
Check Dispensing Ratio
Clean Pump Shafts
Clean Dispense Head
Lubricate pneumatic air motor
Lubricate pneumatic air motor
01/0368-1/11 gear box
Flush pneumatic air motor
82/0216/11
Disassemble and Clean Dispense
Head

Clean the Pump Shafts

1. Put the pump mode in off.
2. Jog the pumps to the fully retracted position.
3. Clean both pump shafts with solvent and lubricate
with mesamoll or silicone oil.
36
Schedule
Daily before use
Daily before use
Daily before use or as
required
Daily after shutdown
Daily
Every 8 hours
Every 2 days
Every 6 months (or
2500 operating hours)
As required
As required
Disassemble and Clean the
Dispense Head (MD2 Valve
Only)
1. Relieve pressure. See Pressure Relief Procedure.
2. Remove dispense head from machine.
3. Dismantle the dispense head. See MD2 Dispense
4. Clean all parts.
5. Lubricate all parts with a thin coat of mesamoll or sil-
6. Reassemble dispense head. See manual 312185
7. Reinstall dispense head on machine.
Procedure
1. Check the color of the desiccant.
2. Replace as required.
1. Check material levels and refill as necessary.
2. Verify the material reservoirs are vented properly.
See Calibrate Dispense Weight Ratio page 30. If
ratio accuracy is critical to the application, perform
ratio check procedure daily before use.
See Clean the Pump Shafts on this page 36
See Shutdown on page 35.
See Lubricate Pneumatic Air Motor on page 37.
See Lubricate Gear Box of Pneumatic Air Motor
01/0368-1/11 on page 37.
Flush Pneumatic Air Motor 82/0216/11 on page 37.
See Disassemble and Clean the Dispense Head
(MD2 Valve Only) on page 36
Valve manual referenced at the beginning of this
manual.
icone oil.
for details.
334116D