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7
2. Adjust the spray gun controls as described in
the Operation Manual supplied with the gun.
3. Turn the regulator knob (15) to the minimum
pressure and open the pressure relief valve
(6) to vent any pressure in the cup.
4. Remove cup (11) by turning ring (1) counter-
clockwise and fill with the coating material,
DO NOT OVERFILL. (If using the liner Kit KK
-5051, see section on liner fitting)
5. Replace lid assembly on cup, push down
with the handle and tighten ring (1).
6. Close the pressure relief valve (6), turn on
and adjust the supply air pressure to 3.5 bar
(50 lbf/in2).
7. Adjust the material pressure to 0.7 bar (10
lbf/in2).
8. Test spray, adjust atomisation and material
pressures to suit required application rate.
NOTE:
To reduce the material pressure turn
regulator (15) down and open the pressure relief
valve (6). Close relief valve (6), and readjust the
regulator (15).
CONDITION CAUSE
CORRECTION
A
Erratic regulation or
excess pressure in the cup
1 Regulator valve (17, 18) leak
Replace
2 Gauge (8) reading incorrectly
Replace
3 Safety valve (14) faulty
Replace
4 Regulator Spring (21) broken or
distorted
Replace
5 Regulator diaphragm (19) damaged Replace
B
Insufficient pressure in the
cup
1
Check valve (12) jammed.
Clean/replace.
2
Safety valve faulty.
Replace
3
Gauge (8) reading incorrectly
Replace
4
Air leakage at cup lid
Tighten ring (1), replace
Seal (9) or Slip Ring (2)
Service Checks
CLEANING
DO NOT
clean the cup lid assembly in a gun
washing machine as the safety valve (18), gauge
(6) and regulator (19) contain parts that will be
damaged.
1. Disconnect the air supply and relieve the
pressure in the cup.
2. Remove the cup (11) and empty surplus
coating material. Wipe the lid and the inside
of the cup clean.
3. Fill the cup with a small quantity of compati-
ble solvent and refit. Connect the air supply,
spray the solvent until clean.
4. Disconnect the air supply and relieve the
pressure in the cup.
5. Remove the cup (11), empty the residual
solvent and dry internal surfaces.
6. Inspect that the check valve (12) and pres-
sure relief vent holes in the lid are free from
coating material.
NOTE:
The check valve cap may be unscrewed
to aid inspection and cleaning, DO NOT disman-
tle any further.
Preventative Maintenance
E
E
