System Flush - Graco ToughTek MP Series Operation

Operation

System Flush

NOTICE
Failure to flush prior to material curing in the system
will result in damage to the system and may require
replacement of all system parts in contact with
material.
1. With the pump stopped, turn the speed control knob
(V) to speed level one.
2. Place the hose outlet in a waste container.
3. Flush material from the hopper and the mixing
chamber.
a. Press the water pump button (Z) (on water
pump models) and START button (U) to begin
flushing out any remaining material until the
hopper is empty.
b. Once the hopper is empty of all material, press
the STOP button (U) to stop the pump.
c. Rinse the hopper (H) with the attached water
wash-down hose (S).
d. Press the START button (U) and run the pump
until no water is left inside the hopper.
4. If there is still material left in the mixing chamber
after flushing with water, use the clean-out shaft (M).
a. Turn the main power disconnect switch (T) to
OFF.
b. Undo the motor latch (K) and swing the motor
assembly (E) open.
16
c. Remove the drive/mix shaft (D) and replace with
the clean-out shaft (M).
D
NOTE: Only use the clean-out shaft (M) if mate-
rial cannot be cleaned using normal flushing
means. Excessive use of the clean-out shaft
can cause premature wear to the system.
d. Slowly swing the motor assembly toward its
closed position, stopping shortly before the
motor shaft adapter (MS) and clean-out shaft
(M) touch.
e. Make sure the motor shaft adapter (MS) and
clean-out shaft (M) are aligned so the clean-out
shaft flat slides into the motor shaft adapter slot.
If they do not align, rotate them into position.
f. Swing the motor completely shut and lock it in
place with motor latch (K).
g. Turn the main power disconnect switch (T) to
ON and press the water pump button (Z) (on
water pump models).
h. Spray the hopper (H) with water.
NOTICE
Only run the pump with the clean-out shaft (M) while
the speed control knob (V) is set to level one. Using
the clean-out shaft at higher speed levels may cause
damage to shaft and hopper.
i. Press the START button (U) and run the pump
until no water is left in the hopper. Press the
STOP button (U) and water pump button (Z) (on
water pump models) to stop the pump.
j. Make sure the mixing chamber is clean. If not,
repeat step 5h and 5i until clean.
k. Repeat steps 5a through 5f, but replace the
clean-out shaft (M) with the drive/mix shaft (D).
5. Remove the hose inlet from the pump outlet (L) and
attach the hose to the water pump system bypass
outlet (HH).
M
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