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

Preventative Maintenance Schedule

The operating conditions of your particularsystem
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 regularschedule for
checking your system.

Proportioner Maintenance

Wet Cup

Check thewetcupdaily.Keepit2/3fullwithGraco
Throat Seal Liquid (TSL®) or compatiblesolvent. 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 glasswith 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 connectionsin 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).

CoolantLevels

Check coolant level insideboth 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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