Checking The Pole Pruner; Testing The Controls; Testing Chain Lubrication - Stihl HTA 50.0 Instruction Manual

17 Checking the Pole Pruner

unauthorized use, switch off the motor, ensure the chain has
stopped and remove the battery before transporting the pole
pruner or putting it down.
To switch the pole pruner off:
► Release the trigger switch and Ergo-Lever so that the
trigger switch springs back to the locked position. In the
locked position, activation of the trigger switch is once
again blocked by the retaining latch.
17 Checking the Pole Pruner

17.1 Testing the Controls

Before starting work, confirm that the retaining latch (1),
trigger switch (2) and the Ergo-Lever (3) are undamaged
and functioning properly.
Retaining Latch (1), Trigger Switch (2) and Ergo-Lever (3)
WARNING
To reduce the risk of serious or fatal injuries, keep hands,
feet and other parts of the body away from the chain. Do not
touch the saw chain while the battery is inserted. Never
touch moving chain with your hand or any part of your body,
@ 6.5.2. Keep bystanders at least 50 ft. (15 m) out of the
area while testing the controls.
0458-813-8621-A
To test the controls:
► Remove the battery.
► Attempt to depress the trigger switch.
If the trigger switch can be depressed without first
unlocking the retaining latch, take the pole pruner to an
authorized STIHL servicing dealer to be repaired before
use.
► Press down on the Ergo-Lever. Make sure it moves freely
and springs back into place when released.
► Unlock the retaining latch by pushing it forward.
When you release the retaining latch it should return to the
locked position.
► Unlock the retaining latch and depress the Ergo-Lever at
the same time to keep the retaining latch unlocked.
When you release the retaining latch, it should remain
unlocked as long as you hold down the Ergo-Lever.
► Release the retaining latch and Ergo-Lever.
► Insert the battery.
► Hold the pole pruner firmly with one hand on the control
1
handle and with the other hand firmly on the front handle.
While pushing the retaining latch forward, squeeze the
3
trigger switch with your index finger.
The pole pruner should switch on. If it does not, take the
pole pruner to an authorized STIHL servicing dealer to be
repaired before use.
► Release the trigger switch.
The pole pruner should switch off.
2
If the pole pruner does not switch off after you release the
trigger switch, remove the battery and take the pole pruner
to an authorized STIHL servicing dealer to be repaired
before use.

17.2 Testing Chain Lubrication

WARNING
Never operate your pole pruner without bar and chain
lubrication. If the chain runs dry, the cutting attachment will
be damaged beyond repair within a very short time. A
damaged chain may break, resulting in severe or fatal
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