AIRLESSCO EZ Rent 700 Instruction Manual download pdf (Page 25)

PRESSURE CONTOL ASSY CALIBRATION

NOTE: ANYTIME A SENSOR OR PRESSURE CONTROL ASSEMBLY (BOARD) OR BOTH ARE REPLACED, THE

FOLLOWING CALIBRATIONS MUST BE PERFORMED.

NOTE: PRESSURE CONTROL ASSEMBLIES (BOARDS) ARE NOW BEING EQUIPPED WITH A GREEN

GROUNDING WIRE ATTACHED. CONTECT THE GROUNDING WIRE TO TERMINAL BOX USING THE SAME

SCREW THAT HOLDS THE GROUNDING WIRE FROM THE POWER CORD.

1. Place prime/pressure relief valve in the prime (open)

position.

2. Set the pressure control knob to the minimum setting

(CCW).

3. Remove the screws and lower the pressure control

assembly.

4. Remove any jumper on the "P-ZR" terminal. Note: This

Jumper is no longer used.

5. Turn machine "ON" and ensure it is not cycling.

6. If the yellow light on the electrical board is ON and you

have "0000" on the LCD display, the Zero Calibration

is complete no further adjustment is necessary. If the

light is ON and there are numbers on the display, use

an insulated screwdriver to turn the "ZERO" trimpot

counter-clockwise until the light goes out. Then turn

it clockwise until the yellow light comes on, continue

to turn the trimpot and the numbers will reduce untill

the LCD shows "0000." The Zero Calibration is now

complete. If you adjust beyond "0000" the numbers will

start to increase.

If the digital display shows "- - -" and no yellow light, you

should turn the Zero trimpot clockwise until the

yellow light is on, continue turning until "0000" is shown.

The goal is to see "0000 " on the digital display, this is

when you have Zero Calibration. Relying on the

yellow light is no longer used.

1. ZERO CALIBRATION

2. PRESSURE CALIBRATION

1. Complete the ZERO calibration, as per "ZERO

CALIBRATION" prior to commencing this calibration.

2. Attach a 50', 1/4" airless hose, airless gun with 0.017 tip

and a 5000 psi glycerin lled pressure gauge to pump.

3. Place the suction tube into a bucket of Coro-chek and

water.

4. Turn prime/pressure relief valve to the prime (open)

position.

5. Turn pressure control knob clockwise until machine

starts to prime.

6. Place the prime/pressure relief valve in the pressure

(closed) position.

7. While watching pressure gauge, slowly adjust the

pressure trimpot (clockwise to increase and counter

clockwise to decrease) until the maximum static

pressure is 3000 psi, with the pressure control knob

fully clockwise. Trigger the gun several times to ensure

pressure returns to 3000 psi .

3. LCD DISPLAY CALIBRATION

IF SO EQUIPED

1. Complete the "ZERO CALIBRATION" and "PRESSURE

CALIBRATION" procedures prior to commencing this

calibration.

2. Turn pressure control knob up until system pressure is

above 2500 psi (as indicated on glycerin lled pressure

gauge) and the machine is not cycling.

3. Use an insulated screwdriver to adjust the LCD Set

trimpot. Turn trimpot CCW until it clicks, then adjust to

match pressure against pressure gauge reading.

4. Move the pressure control knob to different settings and

trigger the gun several times to ensure that the

LCD continues to match the pressure gauge reading.

FORMERLY KNOWN AS THE LOW VOLTAGE OR

MASTER VOLTAGE CALIBRATION

1. Attach a 50', 1/4" airless hose, airless gun with .017

tip and a 5000 psi glycerin lled pressure gauge to the

pump.

2. Place the suction tube into a bucket of anti-freeze and

water.

3. Turn pump on and turn up pressure control until the

machine starts to prime.

4. Place the prime/pressure relief valve in the pressure

(closed) position.

5. Pressurize pump to 600 psi.

6. Trigger the gun several times noting the deadband (the

amount of pressure drop before the pump rebuilds to set

pressure).

7. If deadband is greater than 100 psi, adjust the phase

limit trimpot so that the deadband is less than 100

psi and the pressure increase after the gun trigger is

released is less than 200 psi. These pressures are

guidelines and may vary slightly from pump to pump.

8. Reattach pressure control assembly to unit.

4. PASE LIMIT CALIBRATION

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 31 32

Comments to this Manuals

No comments

AIRLESSCO EZ Rent 700 Instruction Manual Page 25

Comments to this Manuals

Related products and manuals for Paint Sprayer AIRLESSCO EZ Rent 700