Hardi ARROW 2000, Инструкция

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6 - Maintenance
64
Replacing the seal on the drain valve
If the drain valve leaks, the seal and the seat can be replaced as follows:
1. Make sure that the tank is empty and clean.
2. The valve must be closed and the lever loose.
3. Remove the U-clip A and pull the connection part B. Now the
whole valve can be removed.
4. Check the condition and wear of the cord and the valve C, replace
the seal D and reassemble.
5. Grease all o-rings F before assembling.
6. Fit the U-clip A again.
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DANGER! Do not enter the tank – the parts can be replaced from
outside the tank!
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WARNING! Use a protective face mask when disassembling the
drain valve!
Replacing the valves and 363 and 463 diaphragms
Model 363
The repair kit for the 363 diaphragm pump (valves, seals, diaphragms,
etc.) can be acquired with the reference HARDI no. 750342.
Valves
Remove crankcase cover before replacing the valves. Remember their
direction in order to assemble them correctly afterwards!
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ATTENTION! When you remove the crankcase covers, you will see
that there are 2 valves that are slightly different from the rest. For
correct operation, remember to fit them in the same position and
location as before.
Diaphragms
Take the cover off the diaphragm. The diaphragm can then be replaced. If the liquid has got inside the crankcase, grease the
pump thoroughly. Make sure that the drain hole at the bottom of the crankcase is not blocked. Reassemble the pump
completely.
The torque values of the 363 and 463 pumps are the following:
Crankcase cover: 90 Nm
Diaphragm bolt: 90 Nm
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ATTENTION! Before tightening the four screws on the crankcase cover, the diaphragms should be centered to ensure
correct sealing between the crankcase and the cover. Turn the crankshaft if necessary.