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TTI871SDS
Troubleshooting
Suspected malfunctions are often due to causes that the users can fix themselves.
Therefore check the product using this section. In most cases the problem can
be solved quickly.
WARNING! Only perform repairs and maintenance work according to
these instructions! All further works must be performed by a qualified
specialist!
Problem
1. Product
does not start
2. Product
does not reach
full power
3. Unsatisfac-
tory result
4. Product sud-
denly stops
5. Excessive
vibration or
noise
MNL_18V Rotary hammer_IMGB_V01_211231.indd 37
Possible cause
1.1. Forward / reverse
rotation control at centre
lock position
1.2. Battery pack not properly
attached
1.3. Battery pack discharged
1.4. Battery pack damaged
1.5. Other electrical defect to
the product
2.1. Battery pack capacity too
low
2.2. Air vents are blocked
2.3. Ambient temperature is
cold
3.1. Drill bit is worn
3.2. Drill bit not suitable for
intended operation
4.1. Product overloaded
4.2. Battery pack discharged
4.3. Battery too hot
5.1. Drill bit is dull / damaged
Troubleshooting
Solution
1.1. Push forward / reverse
rotation control to left or
right
1.2. Attach properly
1.3. Remove and charge
battery pack
1.4. Replace with a new one
of the same type
1.5. Check by a specialist
electrician
2.1. Charge battery pack
2.2. Clean the air vents
2.3. Run the product for a
while to warm up.
3.1. Replace with a new one
3.2. Use suitable drill bit
4.1. Remove the product
from the workpiece and
switch it on again
4.2. Remove and charge
battery pack
4.3. Remove battery pack
and let it cool down
5.1. Replace with a new one
EN
EN
37
12/31/21 6:49 PM
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