(5) Keeping the auxiliary cement bin (3) vertical, position the opening in the auxiliary cement bin (3) over the
quick-loading hopper (2).
(6) Carefully lower the auxiliary cement bin (3) so that it is close to the mixer cement bin (4) without touching it.
(7) Open the control gate by pulling up on the control gate handle (2, fig. 2-49) and allow ail cement to fall into
(8) When the auxiliary cement bin (3) is empty, close the control gate by pushing down on the control gate
(9) Lower the auxiliary cement bin to the ground.
(10) Put the square cover (1, fig. 2-50) on the quick-loading hopper (2) and disconnect the vibrator air line (fig. 2-
(11) Close the air shutoff and the screen vibrator valves by turning them clockwise (fig. 2-18).
Section III. OPERATION UNDER UNUSUAL CONDITIONS
2-16. Operation in Cold Weather.
a. The mixer is capable of producing concrete at the job site at temperatures as low as -50F (-47C). Follow these
guidelines when operating the mixer in cold weather (below 32F) (0C)).
(1) Water System.
(a) Heat the mixing water up to 180F (82C) prior to loading on board the mixer equipment. The higher
temperature of the water will compensate for heat loss when transferred into the water tank and
maintain an average temperature of 140F (60C) when entering the mixing trough, depending on
(b) Store the mixer in a protected area sufficiently long enough to raise the temperature of the metal parts
of the mixer to 350F (20C). Water lines may be wrapped with thermal tape to meet temperature
(c) When water is being loaded into the water tank (1, fig. 2-51), the shut-off valve (3) shall be closed.
Close gage valve (4) with the drain cock (5) open. The shut-off valve (3) and the gage valve (4) shall
remain closed while enroute to the job site.