Graco 3A1705J important safety instructions Proportioner Maintenance

Maintenance

Maintenance

Prior to performing any maintenance procedures, follow Pressure Relief Procedure, page 64.

Preventative Maintenance Schedule

The operating conditions of your particular system determine how often maintenance is required. Establish a preventive maintenance schedule by recording when and what kind of maintenance is needed, and then determine a regular schedule for checking your system.

Proportioner Maintenance

Wet Cup

Check the wet cup daily. Keep it 2/3 full with Graco Throat Seal Liquid (TSL®) or compatible solvent. Do not overtighten packing nut/wet cup.

Fluid Inlet Strainer Screens

Inspect fluid inlet strainer screens daily, see Flush Inlet Strainer Screen, page 67.

Coolant Filter

Inspect filter in coolant sight glass with a flashlight, as a back light, weekly. Replace filter semi-annually. See Repair manual.

Grease Circulation Valves

Grease circulation valves (SA, SB) with Fusion grease (117773) weekly.

ISO Lubricant Level

Inspect ISO lubricant level and condition daily. Refill or replace as needed. See Pump Lubrication System, page 68.

Wiring Connections

Tighten all screw-type wiring connections in the Electrical Enclosure (DB), Reactor cabinet, and air compressor control box (if supplied) monthly.

Compressor Tank Water Drain

Open the manual water drain valve weekly. See valve location on page 34. Open only when air pressure is less than 25 psi.

Dust Protection

Use clean, dry, oil-free compressed air to prevent dust buildup on control modules, control boards, fans, and motor (under shield).

Coolant Levels

Check coolant level inside both overflow tanks daily.

Flush and refill the coolant on both the engine and heat exchanger coolant loop once a year. See Refill Proportioner Coolant Loop, page 70. See Refill Engine Coolant Loop, page 72.

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