Roto-Mix 425, Operator'S Manual

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ered using the same hydraulic circuit. On truck
models, the chute cylinder and conveyor cylinder
are powered using the same circuit. In both
cases, lowering the conveyor and lowering the
chute are tied to the same circuit.
Because the chute cylinder shares hydraulic
power with other actuators, it will only move (up
or down) when the power to do so is less than
what it takes to move the other components. For
example, on a trailer mixer, since the weight of
the conveyor makes it relatively easy for the con-
veyor to lower, the conveyor will lower first.
When it bottoms out on the stop pin, the chute
will lower and then the door will open (when
mixer is empty and new the door may open prior
to the chute lowering). When raising the con-
veyor, the weight of the conveyor makes it
harder to lift causing the chute to fold first then
the conveyor to lift.
The chute’s folded position is limited by a stop
collar located on the chute cylinder rod. Moving
the collar down the rod will leave more of the cyl-
inder rod exposed when fully retracted causing
the chute to fold up less when the conveyor is
raised to the storage position. Moving the collar
further up the rod causes the chute to fold more.
Standard conveyors typically need to have the
stop collar set down the rod to prevent the chute
from contacting the mixer body. Due to their lon-
ger length, extended conveyors typically can
have the stop collar set at the top of the cylinder.
Further adjustment of the chute position can be
achieved by threading the Cylinder Extension
further onto or off of the cylinder rod.
The lowered position of the chute is limited by
the mechanical interference of the bottom of the
chute and the bottom of the conveyor.
DRIVE CHAIN ROUTING
The drive chain routing for the mixer auger drive
is shown on figures 9 and 10.
Page 25
FIGURE 9. AUGER FINAL REDUCTIONS, PRIMARY RE-
DUCTION REMOVED FOR ILLUSTRATIVE PURPOSES
FINAL REDUCTION,
UPPER LH AUGER
FINAL REDUCTION,
UPPER RH AUGER
FINAL
REDUCTION,
LOWER RH
AUGER
FINAL
REDUCTION,
FIGURE 10. INPUT - PRIMARY REDUCTION
INPUT
SHAFT
PRIMARY
REDUCTION
JACKSHAFT