Fiori DB 460 - Activating the Water Transfer Pump; First Fi Lling with Mixing Water

99
4
OPERATION AND USE
id.:
DB 460 REV. 00 02/01/2015
4.10.5.b First fi lling with mixing water (fi g. 33)
The mixing water is managed by two different systems:
- External water source (tanks, reservoirs, ditches, etc.).
- Vehicle tank
The fi rst system allows you to both fi ll the vehicle tank and directly fi ll the drum with mixing water.
The second system only allows you to fi ll the drum with mixing water.
- Filling with water from an external water source
- Position the fl exible suction hose E in the relative water source. Check that the hose coupling is connected
to the suction pump union A and that the suction fi lter F is intact.
- Set the switching valve B to position “1” and then continue directly fi lling the drum with mixing water.
- Filling with water from the vehicle tank
- When the tank is full, set the switching valve B to position “1” checking that the coupling of the hose
leading from the vehicle tank is connected to the suction pipe union A of the pump.
4.10.5.c Activating the water transfer pump (fi g. 34)
- Check that all the control levers are in neutral position.
- Start the engine.
- Rotate the drum.
- Increase the rotation speed until reaching maximum speed.
- Accelerate the engine by acting on the hand accelerator for 2/3 of its total travel (1800-2000 rpm).
- Activate the transfer pump with the switch A in the cabin OR USING THE MIX CONTROL by means of switch
B.
- Check the quantity of water pumped in on the litre counter, which in this fi rst phase should be 80-90% of the
total quantity.
- Refer to the CONCRETE COMPOSITION AND BATCHING table, chapter 4.10.4, to calculate the optimal
quantity of water.
34
A
B