Replacing The Gears - Titan Impact 400 Series Operating Manual

Impact 400
11.5

replAcINg The geArS

The following procedure must only be performed
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by a Titan Authorized Service Center.
1. Open the relief valve, valve position PRIME (k
circulation). Switch the unit OFF. Unplug the power plug
from the outlet.
2. Loosen and remove the four motor cover screws (1).
Remove the motor cover (2).
The ON / OFF switch (3) is housed inside the
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motor cover. In order to remove the motor cover
completely, you must disconnect all of the wires
at the rear of the switch. Note the position of the
wires before disconnecting.
3. On the back of the motor (4), disconnect the two wires
(black and red) coming from the circuit board (5). Remove
the ground wire from the motor housing.
4. Slide the motor baffle (7) off the rear of the motor.
5. Loosen and remove the four motor mounting screws (8).
6. Pull the motor (4) out of the pump housing (9).
7. Inspect the armature gear (10) on the end of the motor for
damage or excessive wear. If this gear is completely worn
out, replace the entire motor.
8. Remove and inspect the 2nd stage gear (11) for damage or
excessive wear. Replace if necessary.
9. If the armature gear (10) or 2nd stage gear (11) are
damaged, the pump housing (9) must be cleaned of any
debris caused by damaged gears.
10. Reassemble the pump by reversing the above steps.
Refill the gear box in the pump housing with five
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ounces of Lubriplate (P/N 314-171).
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5
11
10
3
1
2
repairs at the unit
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8
4
7
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