11
EQUIPMENT CHECK (CONTINUED)
When thumb nut has moved down to within 1/2 in. (1.25 cm) of
touching the cap, re-service the automatic pressure lubricator.
10. Check and clean the nozzles and hoses of any obstructions or foreign materials.
11. Check pump discharge, recirculation, and remote valve handles for free movement.
VALVE OPERATION
A. THREE-VALVE OPERATION
This HydroSeeder
®
is equipped with three independently operated ball valves to control slurry
flow. See Figure 2 below. The first valve is the recirculation valve. An open recirculation valve
allows flow back into the tank. The second valve is the pump take off valve. The pump take off
valve allows the material flow to be directed to the hose reel. The third ball valve is the upper
discharge valve. An open upper discharge valve allows the material flow through the boom. The
ball valves are open when the handle is in line with the piping and is closed when the handle is
perpendicular to the piping.
Never engage (turn on) the slurry pump when recirculation valve
and either the pump discharge or remote valve is closed. This would
create a situation where the slurry pump is running with slurry flow closed off, which
will result in extreme heat generation, possibly causing damage and/or bodily injury. The
recirculation valve must be open and material flowing back into the tank when using the
remote valve. A closed remote valve in conjunction with a closed or plugged recirculation
valve will cause extreme heat. Failure to comply could result in death or serious injury.
Figure 2 – NEVER Engage (Turn On) Slurry Pump Clutch With All Valves Closed
Upper Discharge
Valve
(Shown Closed)
Recirculation Valve
(Shown Closed)
Pump Take Off
Valve
(Shown Closed)
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