TM 10-4610-240-10
TM 08580C-10/1
T.O. 40W4-13-21
3-6. BACKWASH PUMP STRAINER (Refer to Figure3-12).
a.
Removal.
(1)
Shut power off to backwash pump circuit breaker CB2 (figure 2-4).
(2) Loosen T-handle screw assembly (1) by turning to the left (counterclockwise) to release pressure on
the strainer cap (4).
(3)
Swing the yoke (3) from under bolts (2) and the T-handle out of the way as shown.
(4)
Using the two ears on the strainer cap (4) twist back and forth until it loosens and lifts off the strainer
housing (8).
(5)
Remove the gasket (5) and discard if it is damaged or unserviceable.
(6)
Lift handle on strainer screen (6) and remove screen from the strainer housing (8).
(7)
Remove drain plug (7) from the bottom of strainer housing (8).
b.
Cleaning.
(1)
Flush strainer housing (8) with product water to remove foreign matter and dirt.
(2)
Flush strainer screen (6) with product water. Make sure that all the holes in the screen are open.
(3)
Remove dirt or corrosion from cap (4) and strainer housing (8).
c.
Installation.
(1)
Install drain plug (7) in bottom of strainer housing (8).
(2)
Install the strainer screen (6).
(3)
Install the gasket (5) and strainer cap (4)
on top of the strainer housing (8).
LEGEND:
1.
T-HANDLE
5.
GASKET
2.
BOLTS
6.
TRAINER SCREEN
3.
YOKE
7.
DRAIN PLUG
4.
STRAINER CAP
8.
STRAINER
HOUSING
FIGURE 3-12. BACKWASH PUMP STRAINER
3-26