2-7. ROWPU ASSEMBLY AND PREPARATION FOR USE - cont.
Quick Disconnect Couplings. Refer to figure 2-35.
All suction and discharge hoses, gate valves, and fitting used in the raw, product, and backwash
water systems use quick disconnect couplings. The following instructions apply to all operator
Pull both locking arms (1) out away from hose (2) and toward end of female coupling (3).
Pull plug (4) from female coupling (3).
Push both locking arms (5) out away from cap (6) and toward hose (7).
Remove cap (6 from male coupling (8).
Verify gasket inside female coupling (3) is not damaged or missing.
Pull locking arms (1) out away from hose (1).
Position male coupling (8) in female coupling (3).
To prevent damage to female couplings, both locking arms should be pulled back and locked at
the same time.
Effort required to move locking arms will increase as internal gasket is compressed.
If locking arms are loose or will not remain secured against hose when couplings are connected, internal
coupling gasket may be missing or badly worn.
While holding male coupling (8) and female coupling (3) together, pull both locking arms (1) down against
hose (2) until firmly locked.
Check for proper coupling connection by pulling on connected hoses (2 and 7). Hoses must remain
connected and locking arms (2) must be tight against hose.
Install cap (6) over male coupling (8) and push locking arms (5) down against cap (6).