Dover PSG MOUVEX SUBMERGED AM UNIT ON PLATE Installazione Funzionamento e manutenzione - Pagina 9
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6.15 Pump filling (solvent)
When pump is emptied, leave 3-way delivery valve in
the position show on the instruction plate :
5. Unclutch the pump.
6. Place 3-way suction valve in position show on instruc-
tion plate.
7. Shut pump drain cock at bottom of pump.
8. Put the funnel in the up position, so it can be filled with
flushing fluid. Open the pump filling cock on the
pump and put through the funnel a solvent to flush
the hot fluid pumped previously.
9. When the pump is filled with solvent, shut the pump
filling cock on the top of the pump and put the funnel
in the bottom position, to avoid its filling with rain
water, dusts...
6.16 Pump rinsing
10. Clutch back the pump to the engine to circulate the
solvent and flush out the pump.
11. Operate slightly from bottom to top each of 3-way suc-
tion and delivery valve control levers to allow the rin-
sing the valve shells.
6.17 Pump emptying
After rinsing is completed, empty the solvent from the
pump as follows :
12. Unclutch the pump.
13. Open the pump drain cock at bottom of pump.
14. Place 3-way suction valve in position shown on
instruction plate.
15. Clutch back the pump.
16. When pump is emptyed, unclutch the pump from the
engine.
17. Position the suction and delivery valves on OFF,
close the pump drain cock stop the engine.
The pump should now be ready to operate with the new
product. However, it is advisable to check rinsing effi-
ciency by proceeding as described in § C
"
RINSING AND
UNSTICKING
6.18 Check of pump rinsing and "unsticking"
Whenever a rinsing operation in necessary (change of
product, pumping of especially viscous fluid) and in any
case where it is not absolutely certain that it has been
performed (different operator...) always check that
pump was rinsed by rotating the pump by hand
before allowing new fluid to enter the pump.
If the pump sticks perform steps 8 and 9 above mentio-
ned, and then, before performing steps 10, 11, 12, 13,
15 and 16 be sure that the solvent has unstuck the
pump by rotating the pump by hand.
This procedure prevents deterioration (shaft breaking,
packing removal,...). Do not omit to close the pump
drain cock when the procedure is completed.
NT 1010-I00 03 18 Submerged AM unit on plate e
6. USE (continued)
(solvent evacuation)
HECK OF PUMP
".
6.19 Rotation speed
Always it is necessary to choose a pump rotation speed
suited to the pumped product viscosity and do not
exceed the maximum speed indicated in the attached
table for a fluid of given viscosity :
Product viscosity
cP
70
150
370
730
1400
2200
3700
7300
The appropriate speed will be obtained, according to the
reduction gear ration, by acrefully selecting the engine
speed.
6.20 Valves lubrication
For valve sealing and smooth operation, lightly grease the
valves after-each operation unsing the special grease
pump provided with the equipment and filled with grease
suited to the fluid pumped and at is temperature.
Actuate the valves when greasing them.
The valve lubricating instructions plate supplied with the
equipment should be attached by the fitter on the vehicle
in full view of the operator.
If a 3-way valve sticks, grease it before operating it.
NOTE - As the bypass is factory adjusted, the adjust-
ment should not normally be modified. However, if
because of special operating conditions, the flow rate is
lower than desired flow rate, and providing the engine
permits, it is possible to increase the flow rate by increa-
sing normal adjustment (8 full rurns of adjusting nut from
completly unscrewed position), by tightening this nut
accessible by removing the bypass valve cap.
9/13
Pump max. speed
(rpm)
(°E)
10
500
20
450
50
400
100
300
190
300
300
250
500
200
1000
150