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Notice：Please fill the 45g grease into the aluminum head bottom (See Fig 4 and Fig 5)
7. Fill the 10g oil in the cylinder; please make sure it is clean before filling. (See Fig 6)
8. Fill the 5g grease into the piston. please make sure it is clean before filling. (See Fig 7)
9. Assemble back(See Fig 8)
a) Assemble the piston into cylinder, please make sure if the O-ring has been assembled.
b) Assemble the cylinder into aluminum head.
c) Tighten the 4 inner HEX head screws; be careful of no missing spring washer. If tighten
the screws by electrical or pneumatic driver, please check the torque of screw by 6mm
wrench to make sure tightening properly.
d) If the conditional, can put glue on the screw and then screw in(repeat the step above C)
*Suggestion: All above operations to be carried out by our authorized service agent.
Maintenance and inspection
Before do any maintenance, ensure unplug the plug.
1. Inspecting the demolition hammer
Use a dull accessory, such as bull point, cutter, etc., will cause motor malfunction and
efficiency degraded. Replace with a new one when your accessory is abased.
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that they are properly tightened. Any
loose should be tighten immediately, failure to do maybe cause serious hazard.
3. Inspecting the bit retainer
The retainer may become loose due to excessive use. Make sure the bit shank position is
hold securely, if any wear or damage is found, ask the authorized service people to maintenance.
4. Maintenance the motor
The motor is the heart of the machine, please avoid any damage to the winding, or any
water and oil to wet it.
5. Carbon brush replacements
When the carbon brushes are worn out, the power tool switches itself off, and also the red
indicator light of carbon brush will turn on. The power tool must then be sent to an after-sales
service agent.
When you have to replacement the carbon brushes by yourself, please following the order：
(1) Loosen the six set screws and remove the fan cover.
(2) Remove the helical spring and carbon brushes.
(3) After replacing the carbon brushes, install the helical spring and fan cover, with securely
tightening six set screws.
(4) Remark: after carbon brush replacement, please make sure all of the screws are tightened
enough!
6. Cleaning
Clean the machine regularly with a soft cloth, preferably after each use. Solvent such as gasoline,
thinner, alcohol etc.. These kind of chemical materials are not allowed to use, water or soap are
recommended!
7. Warranty
For the condition of warranty, please refer to the separately provided warranty card.
Environment
Faulty and /or discarded electrical or electronic apparatus have to be collected at the
appropriate recycling location.
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