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16.4.6
Changing the V-belts
Replace worn belts.
Procedure:
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Replace the belts by loosening the tension bolt on the base plate.
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Remove the V-belts.
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Replace the belts.
16.4.7
Changing and checking the suction and pressure valves
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Note the placement of the individual suction and discharge valves before removing all of them
from the pressure and suction pipes.
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Be careful not to damage the valve baskets during installation. Damage may cause the valves to
block.
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Tighten the nut to the specified torque.
Procedure for exchanging the valves:
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Remove the pump from the sprayer.
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Loosen the nuts on the pressure and suction pipes.
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Remove the pressure and suction pipe ring.
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Remove the valve (1 Figure 16/4).
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Check the valve seats, valves, springs and baskets to see if they are damaged or worn.
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Remove the O-ring (2 Figure 16/4).
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Replace the damaged parts.
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After inspecting and cleaning the valve, re-install it.
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Set the new O-rings into place.
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Connect the pressure and suction pipes to the pump.
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Tighten the nut torque to 11Nm.
16.4.8
Testing and exchanging the diaphragms
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At least once per year, check the diaphragms (7 Figure 16/1), to ensure that they are in perfect
condition.
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Remember the location of the suction and pressure valves before removing them.
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Check and replace all the diaphragms without exception.
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Disassemble the next diaphragm only when the adjacent diaphragm has been checked or
replaced and completely re-assembled.
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Turn the shaft so that the piston of the test or exchanged diaphragm is on top so that the oil
leaks from the housing.
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Always replace all diaphragms even if only one is damaged or worn.
Summary of Contents for ALKA 2500
Page 1: ...Instructions for use ALKA NAPA ver 01 2017 ...
Page 65: ...www agrio cz info agrio cz 65 Pictures for chapter 15 3 1 2 3 6 5 8 11 12 14 19 ...
Page 66: ...www agrio cz info agrio cz 66 15 16 17 18 20 21 ...
Page 76: ...www agrio cz info agrio cz 76 2 3 4 5 6 ...
Page 77: ...www agrio cz info agrio cz 77 Booms ...
Page 78: ...www agrio cz info agrio cz 78 ...
Page 79: ...www agrio cz info agrio cz 79 7 8 9 ...
Page 80: ...www agrio cz info agrio cz 80 ...
Page 87: ...www agrio cz info agrio cz 87 20APPENDICES 20 1 Hydraulic diagram of the sprayer ...
Page 90: ...www agrio cz info agrio cz 90 20 3 Sprayer brake diagram dual hose ...
Page 92: ...www agrio cz info agrio cz 92 20 4 Wiring diagram ...
Page 94: ...www agrio cz info agrio cz 94 20 5 Hydraulic connection operation diagram ...
Page 96: ...www agrio cz info agrio cz 96 20 6 Technical water diagram ...