User's Manual

Parts

12 332518C

Parts

Model 77X521 (FIG. 21)

*Prior to installation, apply thread sealant or PTFE Tape

to all npt tapered pipe threads.

Accessories

Remote Electric Signaling (FIG. 22)

Remote electric signaling can be added to the Auto-Fill

Shut Off. Contact your Graco distributor or Graco Cus-

tomer service for assistance when ordering these parts.

Filter Assembly (see M, page 4)

Pressure Relief Assembly (see G, page 4)

Ref Part No. Description Qty

1 16V582 VALVE, auto shut off 1

2 16V748 DIAPHRAGM, assembly 1

3 16X381 TUBE, vent valve 1

4 16V750 TUBE, manifold 1

5 121311 FITTING, connector, 3/8 in. npt*

x JIC

6 16X389 BOLT, M8 x 1.25 x 2 mm (not

shown)

7 16V396 SEAL, auto shutoff valve 1

8 404157 CAP 1

FIG. 21

Ref Part No. Description

563272 SWITCH, cycle

563273 SWITCH, submersible

Part No. Description

77X523 FILTER

Part No. Description

247902 PRESSURE RELIEF

FIG. 22