Graco 334135B Maintenance, Schedule, Clean the Pump Shafts, Action, Procedure

Maintenance

Maintenance

Schedule

Action	Schedule	Procedure
Check Water/Air Separator	Daily before use	1.	Check water/air separator for water.
(Not provided)		2.	Open valve at base of water/air separator to purge
			water.
Check Desiccant Dryer (only	Daily before use	1.	Check the color of the desiccant
installed if chemical is moisture		2.	Replace as required.
sensitive)
Check Tanks	Daily before use	1.	Check material levels and refill as necessary.
		2.	Verify the material reservoirs are vented properly.
Check Dispensing Ratio	Daily before use or as	See Phasing Adjustment page 29.
	required
Clean Pump Shafts	Daily after shutdown	See Clean the Pump Shafts on this page.
Clean Dispense Head	Daily	See Shutdown on page 34.
Disassemble and Clean Dispense	As required	See Disassemble and Clean the Dispense Head on
Head		this page.
Upgrade LCM	As required	See Install Upgrade Token on page 36

Clean the Pump Shafts

1.Close the vented ball valve at the left, rear of the machine.

2.Press the Machine Disable Mode key ( ).

3.Push the piston block to the fully retracted position.

4.Clean both pump shafts with a compatible solvent and lubricate with mesamoll, silicon oil, or other compatible lubricant.

Disassemble and Clean the Dispense Head

1.Relieve pressure. See Pressure Relief Procedure, page 33.

2.Remove the dispense head from machine.

3.Dismantle the dispense head. See MD2 Dispense Valve manual referenced at the beginning of this manual.

4.Clean all parts.

5.Lubricate all parts with a thin coat of mesamoll, sili- con oil, or compatible lubricant.

6.Reassemble the dispense head.

7.Reinstall the dispense head on machine.

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