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6.2
After use
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1. Pull up the red button of the safety valve until the tank is completely depressurized.
2. Close the ball valve and disconnect the plug-in connector from the plug-in nipple (1).
3. Lock the pump handle.
4. Screw the pump out of the tank.
5. Drain the remaining water from the tank.
6. Wipe off the water supply unit with a damp cloth.
7. Coil the hose round the tank and seat the plug-in connector on the locating pin of the water supply unit
(2).
8. Keep the water supply unit in a dry, frost-free environment protected from direct sunlight for drying and
storage.
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Care and maintenance
7.1
Care and maintenance work
1. Check the unit at regular intervals.
▶ We recommend having an expert conduct an external inspection every 2 years and an internal
inspection every 5 years, as well as a strength test every 10 years
2. Dismantle the pump [1] and grease the O-ring [a] is and the sleeve [b].
3. Always carry out this maintenance after using the unit 50 times, however at least once a year!
To help ensure safe and reliable operation, use only genuine Hilti spare parts and consumables.
Spare parts, consumables and accessories approved by Hilti for use with the product can be
found at your local Hilti Store or online at: www.hilti.group.
8
Troubleshooting
If the trouble you are experiencing is not listed in this table or you are unable to remedy the problem by
yourself, please contact Hilti Service.
8.1
Troubleshooting table
Trouble or fault
The water supply unit does
not build up any pressure
Liquid escapes from the
pump at the top
Safety valve vents too early
Pressure gage indicates no
tank pressure
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Disposal
Do not dispose of this product in household waste!
Most of the materials from which Hilti tools, appliances and devices are manufactured can be recycled.
The materials must be correctly separated before they can be recycled. In many countries, your old
tools, machines or appliances can be returned to Hilti for recycling. Ask Hilti Service or your Hilti sales
representative for further information.
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Manufacturer's warranty
▶ Please contact your local Hilti representative if you have questions about the warranty conditions.
*247636*
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Possible cause
Pump is not screwed on tightly
O-ring on the pump is defective
Sleeve is defective
Valve disk is dirty or defective
Safety valve is defective
Pressure gage is defective
247636
Action to be taken
▶ Screw on the pump tightly.
▶ Have the power tool repaired by
Hilti Service.
▶ Have the power tool repaired by
Hilti Service.
▶ Clean the valve disk or have the
unit repaired by Hilti Service.
▶ Have the tool repaired by Hilti
Service.
▶ Have the power tool repaired by
Hilti Service.
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