Graco ProMix Auto Service Parts page 24

Servicing Flow Meters
• Coriolis Meter: To remove and service see Coriolis
meter manuals. To service, see manual 310696.
• G250 or G250HR Meter: To remove, follow proce-
dure below. To service, see manual 308778.
• G3000 or G3000HR Meter: To remove, follow pro-
cedure below. To service, see manual 308778.
G250/G3000 or G250HR/G3000HR Meter
Removing
1.
Follow Pressure Relief
2.
Close main air shutoff valve on air supply line and
on ProMix™ Auto.
3.
Shut off ProMix™ Auto power (0 position).
4.
Unscrew cable connector (110) from meter (1). F
27.
The meter shield (R) is unattached and may fall off
when you remove the meter (1). F
5.
Unscrew M6 screws (107) from bottom of meter
mounting plate (108) with socket wrench. F
6.
Unscrew fluid line from meter inlet (P).
7.
Unscrew meter (1) from dispense valve connector
(H). F . 27.
IG
8.
Service meter as instructed in the meter manual.
107
108
F . 26
IG
24
Procedure, page 10.
IG
. 27.
IG
. 26.
IG
P
110
R
1
F . 27
IG
Installing
9.
Screw meter (1) securely onto the dispense valve
connector (H), using a wrench.
To avoid leakage, secure the meter (1) to the dis-
pense valve connector (H) before connecting it to the
.
plate (108).
10.
Secure meter (1) to plate (108) with screws (107).
11.
Connect meter cable (110). See F
12.
Connect fluid line (P).
13.
Calibrate meter as instructed in ProMix™ Auto
Operation manual.
J3*
Power (red)
1
Common (black)
2
Signal (white)
3
Shield
4
Power (red)
5
Common (black)
6
Signal (white)
7
8
Shield
*Connector on Fluid Panel circuit board
F . 28: G250 or G250HR Cable Schematic
IG
Same for G3000/3000HR
H
CAUTION
. 28.
IG
Cable
Flow Meter A
Flow Meter B
Cable
Service
311189C