Graco Matrix PAC 247436 Manual page 9

Repair
Pressure Relief Procedure
This equipment will stay pressurized until the pressure
has been manually relieved. To reduce the risk of
serious injury from pressurized fluid, accidental spray
from the dispense valve or splashing fluid, follow this
Pressure Relief Procedure when ever you:
• Are instructed to relieve pressure.
• Check, clean or service any system equipment.
• Install or clean fluid nozzles or filter.
1. Turn off power supply to the pump or close
upstream ball valve.
2. Trigger the dispense valve into a waste container to
relieve pressure.
3. Open any bleed-type master air valves and fluid
drain valves in the system.
4. Leave the drain valve open until you are ready to
pressurize the system.
Solenoid (2) Replacement
For the following instructions refer to F
pages 10 and 10.
1. Unplug power cord from outlet.
2. Relieve pressure following Pressure Relief Proce-
dure provided.
3. Disconnect air line inlet at fitting (15a) and pump air
inlet at fitting (15b) as shown in F
4. Disconnect cable assembly (5) from solenoid (2) by
loosening screw (c) sufficiently to unplug connector
from solenoid.
5. Loosen and remove nuts (3) and screws (1) secur-
ing solenoid (2) to bracket (4).
6. Install new solenoid (2) on bracket (4) using nuts (3)
and screws (1). Tighten nuts securely.
7. Reconnect cable assembly (5) to solenoid and
tighten screw (c).
312417F
8. Connect air line inlet to port (15a).
9. Connect pump air inlet to port (15b).
10. Plug power cord in grounded outlet.
. 5 and parts
IG
. 5.
IG
F
(c)
5
2
15b
15a
. 5
IG
Repair
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