AMMCO 7300 Brake Bleeder User Manual

Assembly

Insert the handle into the vertical sleeve behind the

gauge and tighten the set screw.

Filling And Charging The Bleeder

1. Release the air from the brake bleeder by depress-

ing the inﬂator valve. Then remove the valve core.

2. Remove the hose assembly from the ﬁll hole on top

of the brake bleeder by loosening the wing nut and turning the lock plate 90˚. Use a clean blunt instrument to gently push the diaphragm to the bottom of the bleeder tank.

3. Insert a plastic funnel into the ﬁll hole and add brake

ﬂuid. The funnel will catch the overﬂow which can be removed with the suction syringe.

4. Remove the funnel and replace the hose assembly

into the ﬁll hole. Position the lock plate under the lock tabs and tighten the wing nut.

5. Replace the valve core and tighten. Inﬂate to 15 PSI.

6. Insert the ﬁll nozzle into the hose coupler, open the

shutoff valve and bleed the brake ﬂuid into a cup until the ﬂow is free of bubbles. Add air to bring the bleeder’s pressure back up to 15 P.S.I.

CAUTION: FOR SAFE OPERATION DO NOT

INFLATE TO MORE THAN 15 P.S.I.

Bleeding The Brakes

1. Pressurize the brake bleeder to not more than 15 P.S.I. Bleeding at this low pressure should not cause the metering valve to close.

2. Use fender covers to protect paint from any acci-

dental brake ﬂuid spills. If brake ﬂuid is dripped on a painted surface, immediately ﬂush the area with water.

DO NOT try to wipe the brake ﬂuid from the paint!

3. Remove the master cylinder cover. Refold the rub-

ber cover gasket if necessary.

4. Carefully wipe any grit from the upper perimeter of

the master cylinder reservoir.

5. Install the appropriate bleeder adapter on the mas-

ter cylinder. DO NOT pinch any brake lines or electrical wires with the hold-down chains.

CAUTION: Plastic

reservoirs may break if the adapter’s chains are overtightened. The chains should only be tight enough to seal the adapter on the master cylinder.

6. Connect the bleeder’s quick coupler to the adapter.

Model 7300 High Bleeder

Operating Instructions with Parts Identiﬁcation

AMMCO, Inc. • Hennessy Industries • 1601 J.P. Hennessy Drive, LaVergne, TN 37086-3565

(800) 688-6359 • (615) 641-7533 • (615) 641-5104 FAX • www.ammcoats.com

7. Push one of the plastic tubes onto a front bleeder.

Put the loose end of the tube into the plastic cup to catch the brake ﬂuid. Open the bleeder.

8. Bleed one front caliper until the brake ﬂuid dis-

charge changes color, then close the bleeder.

9. Bleed the other front caliper in the same manner as

outlined in steps 7 and 8 above.

10. Attach the hose to the bleeder with the loose end

in a cup before opening each rear bleeder. Allow the brake ﬂuid to bleed until it changes color, then close the bleeders. Bleeding the system until the brake ﬂuid changes color ﬂushes contaminants and air, trapped between the old and the new ﬂuid, from the system.

STEPS 11 & 12 DO NOT APPLY TO 4-DRUM BRAKE VEHICLES

11. Use slow, short strokes (approximately 2" travel)

of the brake pedal to adjust the front pistons and pads out to the rotors. DO NOT overstroke the master cylinder by pushing the brake pedal to the ﬂoor. Overstroking the master cylinder may damage it’s sealing cups.

12. Rebleed all disc brake calipers to remove air that

may have been trapped between the piston and the caliper.

13. CAUTION: The quick coupler will squirt brake

ﬂuid when it is removed from the adapter. Before disconnecting, wrap a shop cloth around the quick coupler to absorb the brake ﬂuid. Remove the adapter.

14. Attach the ﬁll nozzle to the bleeder’s hose. Press

the ﬁll nozzle against the side of the reservoir about 3/8" down from the top to ﬁll the reservoir to about 1/4" from the top.

15. Replace the master cylinder cover.

Item Part No. Qty. Description

1 922059 1 Nozzle Fill 2 922047 1 Coupler, Quick 3 922043 1 Hose, Pressure 4 922044 1 Valve, Shutoff 5 922054 1 Tube, Fill Plug Core 6 922055 1 Nut, Fill Plug Wing 7 922046 1 Plug, Fill 8 922056 1 Nut, Fill Plug Seal

9 925662 1 Gauge, Pressure 10 922048 1 Handle Assembly 11 922050 1 Diaphragm, Bleeder 12 922049 1 Wheel, Swivel 13 922045 1 Valve, Safety 14 922053 1 Fitting, “T” 15 922052 1 Washer, Fill Plug 16 922051 1 Body, Air Release Valve 17 922057 1 Syringe

20 922339 1 Tube, 1/4" I.D. 21 922338 1 Tube, 3/16" I.D. 22 907330 1 Adapter