2-11. ASSEMBLY AND PREPARATION FOR USE - cont.
Do not disconnect hose couplings while water system is pressurized.
Hose ends may whip, causing injury to personnel and damage to
Pull locking arms (1) up and out from female coupling (2).
Pull female couplings (2) from male couplings (6).
Insert plug (3) in female coupling (2) and pull locking arms (1) back against coupling body.
Place cap (4) over male coupling (6) and pull locking arms (5) back against cap body.
Connection of Coupling Clamps.
The TW DS hoseline and pumping station components are equipped with grooved pipe
couplings. These components must be connected using hinged, boltless, coupling clamps. The
coupling clamps consist of a one-piece hinged housing, gasket and locking pin. An assembly
tool, hammer, and punch are required for installation and removal of the clamps. The following
instructions apply to all coupling clamp removal and installation tasks.
To prevent contamination of water system and damage to the
equipment, use care when installing coupling clamps to avoid
getting dirt, sand and debris on mating surfaces or in hoses.
To prevent leaks and ensure water-tight connections, make sure
gaskets are installed properly.
To prevent contamination of water system, do not use petroleum based lubricants on coupling
Installation. Refer to figure 2-13.
If installed, remove protective caps from ends of hoses (1 and 2).
Apply a thin, even coating of lubricant (Item 3, App E) to coupling gasket (3).
Slide gasket (3) over end of pipe coupling (2).
To aid installation, blocks of wood (4x 4x 6 inches) of similar material
may be placed under hose ends to help support and aline pipe
Aline and mate ends of pipe couplings (1 and 2).
Slide coupling gasket (3) between ends of pipe couplings (I and 2) Make sure gasket is not
seated in coupling grooves.