HTC 1500 IXT - Changing Valves; Battery

HTC 1500 ixT
Operation
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15. Fold the edges of the filter over the bottom edge of the
cylindrical section.
16. Lower the dust separator again.
17. Replace the cyclone top.
18. Secure the cyclone top using the two quick fasteners.
19. Replace the bottom cone.
20. Secure the bottom cone using the two quick fasteners.
21. Push the hose into place.
22. Replace the side cover.
23. Replace the top cover.
4.10. Changing valves
1. Pull out the absolute filter.
2. Loosen the eight screws holding the valve in place. The
valve is located under the absolute filter.
3. Lift up the valve slightly.
4. Pull out the contact.
5. Lift out the valve from the dust separator.
6. Discard the old valve.
7. Place the new valve in the dust separator.
8. Connect the valve cable to the dust separator.
9. Tighten the eight screws securely to keep the valve in
place.
10. Push in the absolute valve.
11. Secure the absolute filter using the quick fastener.
4.11. Battery
The machine is equipped with two 12 V batteries connected in
series, located under the dust separator at the back of the chassis.
This means that you can carry out certain functions without