Graco 3A2497BPro User Manual download pdf (Page 52)

Repair

Power Supply R

emoval and Replacement

• Inspect the gun handle power supply cavity for dirt

or moisture. Clean with a clean, dry rag.

• Do not expose gasket (5) to solvents.

1. See Prepare the Gun for Service, page 47.

2. See Gun Barrel Removal, page 50.

NOTICE

Be careful when handling the power supply

(11) to avoid damaging it.

3. Grasp the power supply (11) with your hand.

Withagentlesidetosidemotion,freethepower

supply/alternator assembly from the gun handle

(16), then carefully pull it straight out.

On Smart

Models only,

disconnect the ﬂexible circuit (40)

from the socket at the top of the handle.

4. Inspect the power supply and alternator for

damage.

5. To separate the power supply (11) from the

alternator (15), disconnect the 3-wire ribbon

connector (PC) from the power supply.

On Smart

Models only,

disconnect the 6–pin ﬂexible circuit

(40) from the power supply. Slide the alternator

up and off the power supply.

6. See Te

st Power Supply Resistance, page 37.

Repla

ce the power supply if necessary.

To rep

air the alternator, see

Alte

rnator Removal and Replacement, page 53.

Smart models only:

connect the 6–pin ﬂexible

circuit (40) to the power supply.

To prevent damage to the cable and possible

interruption of the ground continuity, bend the

alternator’s 3–wire ribbon cable (PC) upward

and back, so the bend faces the power supply

and the connector is at the top.

8. Connect the 3-wire ribbon connector (PC) to the

power supply. Tuck the ribbon forward, under

the power supply. Slide the alternator (15) down

onto the power supply (11).

9. Insert the power supply/alternator assembly in

the gun handle (16). Make sure the ground strips

make contact with the handle. On Smart models,

align the connector of the 6–pin ﬂexible circuit

(40) with the socket (CS) at the top of the handle.

Push the connector securely into the socket as

you slide the power supply/alternator assembly

into the handle.

Figure

32 Connect Flexible Circuit

10. Make su

re the gasket (5*), ground spring (37a),

and pow

er supply spring (11a) are in place.

Assemb

le the barrel (1) to the handle (16). See

Gun Ba

rrel Installation, page 50.

11. See Te

st Gun Resistance, page 36.

Figure 33 Power Supply

52 3A2497B

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Graco 3A2497BPro User Manual Page 52

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