TM-5-3895-372-10

CONCRETE-MOBILE MIXER BODY M919, MODEL 8CM-24/F

TECHNICAL MANUAL; OPERATION INSTRUCTIONS

OCTOBER 1979

TM-5-3895-372-10 - Page 147 of 184

TM 5-3895-372-10

(5) When all aggregates are dumped, disengage the main clutch. Close the control valve (fig. 2-41).

(6) Open the washout hose valve and use the washout hose to clean the mixing trough (fig. 2-24).

(7) Loosen the stopscrews (fig. 3-16). Close the aggregates gates by turning the handwheels to the left.

(8) Engage the cement bin clutch (fig. 3-15). Push to the left, then lower the locking arm.

c. Drain and Blow Moisture from the Water System.

(1) Remove one of the water tank fill caps (fig. 2-15).

(2) Be sure you are in an area suitable for draining up to 400 gallons (1514 L) of water. Open the drain valve

(fig. 3-19).

(3) Open the left side access panels. Use the props to hold them open (fig. 3-20).

(4) Open the eight draincocks and the vent (fig. 3-19).

(5) Put the fill cap back on Close valve (fig. 3-19).

(6) Be sure the air shutoff valve is open (fig. 3-21).

Remove the caps from the air fittings one at a time. Blow

air into them with the auxiliary hose until no more water comes from the draincocks.

(7) If available, inject 10-25 drops or a teaspoon of alcohol or other antifreeze into the air fittings and blow

compressed air into the water system to prevent frosting and freezing of the water pump and valves. Install

the air fitting caps.

(8) Close the eight draincocks and the vent (fig. 3-19).

(9) Close the access panels (fig. 3-20).

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