Instruction manual

Hallett 13 & 30 Instruction Manual - Wastewater & Reuse

Step 5: Disconnect the wiper motor (5) from the bottom bracket (22) by undoing

the three nuts. See Figure 4C. Pull off the motor plate and foam pad (21) from

the mounting standoffs and unplug the motor. Set the motor aside, holding it by

the body, not the wires. Do not place the motor in any location where it can

be exposed to moisture.

Step 6: Remove the bottom Bracket (22) by undoing the four fasteners in an

alternating pattern (top left, bottom right, bottom left, then top right). The bottom

End Cap (23) will drop as the bracket is removed. Support the quartz sleeve as

you remove these two items.

Step 7: Remove the quartz sleeve by removing the top and bottom O rings (24).

Lift the quartz sleeve out of the unit.

Step 8: Inspection of wiper seals can be done now. This is a two-step process.

First, remove the rubber washer (20) and shaft retaining ring (18) and place them

in a safe place. Second, lift the shaft adapter (6A) out of the bottom End Cap

(23). Check the U-cup seal (27) Wiper O ring (25) – replace/clean if necessary.

Re-install shaft adapter (6A). Replace the wiper retaining ring (18) by inserting it

into the grooved area on the shaft adapter. Replace the rubber washer (20).

Step 9: Install the new quartz sleeve into the unit and center it vertically. Be

careful not to chip the ends. Support the quartz for the next two actions.

Step 10: Replace the top and bottom O rings (24), keeping the quartz centered

vertically in the unit.

Step 11: Replace the bottom End Cap (23) and bottom Bracket (22) by installing

the four fasteners in an alternating pattern (top left, bottom right, bottom left, then

top right) (lock washers must be installed). Ensure that the welded elbow is at

the backside of the unit. Ensure that the bottom End Cap (23) sits centered in the

bottom Bracket (22).

USE AN 11/32" NUT DRIVER

TO REMOVE NUTS

ALIGN MOTOR SHAFT

WITH SLOT IN WIPER SHAFT

(REMOVE FOAM PAD TO SEE)

DO NOT OVER-

TIGHTEN NUTS

RUBBER WASHER TO

BE INSTALLED ON

WIPER SHAFT BEFORE

MOTOR

Figure 4C