Graco 25R128, Setup - Operation - Repair

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Maintenance
3A7526B 51
Maintenance
Preventive Maintenance
There is a grease filled secondary seal/bearing area on
each valve shaft (MD2 Dispense Valve (AE) and Inlet
Valve (AL or AM). Every 10,000 cycles or twice each
month, new grease should be flushed across this area.
To grease the valve:
1. Remove the fitting from each side of the front or
back of the valve. For the detailed information, please
check MD2 Dispense Valve (AE) Instruction and
Parts Manual 312185 and 1K Ultra-Lite Instructions
and Part List Manual 308876.
2. Pump grease (115982) with grease gun (117792)
across the valve until clean grease comes out the
other side.
3. Reinstall the fitting.
Maintenance Schedule
Item Task Daily Monthly Quarterly Yearly
1 Inspect cable and air tubes for leaks
2 Clean up all material and dust of supply pump or cartridge
3
Clean dust and foreign matter from the PR-X machine and
the PR-X control box
4 Inspect fluid lines and adapters for leaks
5 Inspect inlet air filter equipment, expel water and clean filter
6
Use dry and clean compressed air to remove dust buildup
on motor, control boards and fan
7
Clean and grease Inlet Valve (AL or AM) and MD2
Dispense Valve (AE) and repair broken seal components
(see valve manual)
8
Inspect supply pumps’ wet cup, cleanup leaking material
and fill TSL oil
9
Inspect leaking holes (AS) on the both side of PR-X
machine
10 Grease the ball screw, slides and bearings
11
Inspect sealant condition with high pressure and repair
broken seal components
12 Inspect and tighten screws and nuts on moving parts
13 Verify sensors are affixed correctly
14 Inspect and calibrate pressure sensor
15 Replace PR-X machine’s pistons and O-rings
16
Replace valve seal components (MD2 Dispense Valve (AE)
and Inlet Valve (AL or AM)
17 Replace supply pump seal components