Bosch AHS 50-20 LI - Инструкция по эксплуатации - Страница 19

 English | 

19

Bosch Power Tools

F 016 L81 734 | (24.5.17)

Troubleshooting  –  Causes and Corrective 
Measures

Charging Advice

With continuous or several repetitive charging cycles without 
interruption, the charger can warm up. This is not meaningful 
and does not indicate a technical defect of the battery charg-
er.

A significantly reduced working period after charging indi-
cates that the battery is used and must be replaced.

Working Advice

Sawing Function

Although the tooth opening allows wood to be cut up to 
Ø 20 mm, the tip of the blade is designed to cut wood up to 
Ø 25 mm.

Anti Blocking

If the blade stalls on a tough material, the load of the motor in-
creases. The intelligent micro-electronics senses this over-
load condition and repeatedly reverses the motor, in order to 
prevent stalling and to cut the material through.
This audible reversing cut action continues for up to 3 s.
After cutting through, the garden product continues in its nor-
mal mode, or in case the overload condition continues the 
blades automatically stop in the open position (e. g. in case a 
piece of metal fence accidentally blocks the garden product).

Troubleshooting

The following chart lists problem symptoms, possible causes and corrective action, if your garden product does not operate 
properly. If these do not identify and correct the problem, contact your service agent.



Warning: Switch off and remove the battery prior to any troubleshooting.

Cause

Corrective Measure

Continuous lighting of the battery charge indicator 
Flashing red battery charge indicator 
No charging procedure possible

The battery is not attached 
(correctly)

Attach battery to charger 
correctly

Battery contacts 
contaminated

Clean the battery contacts 
(e. g. by inserting and re-
moving the battery several 
times) or replace the battery

Battery pack defective

Replace the battery

Battery charge indicators  or  do not light up

Mains plug of battery charg-
er not plugged in (properly)

Insert mains plug (fully) into 
the socket outlet

Socket outlet, mains cable 
or battery charger defective

Check the mains voltage; 
have the battery charger 
checked by an authorised af-
ter-sales service agent for 
Bosch power tools

Problem

Possible Cause

Corrective Action

Hedgecutter does not 
operate

Battery discharged

Recharge battery; also see “Battery Charging”

Safety switch not activated correctly

see “Initial Operation”

Hedgecutter operates 
intermittently

Internal wiring of machine damaged

Contact Service Agent

On/Off switch defective

Contact Service Agent

Motor reverses repeatedly then stops after 3 s

see “Working Advice” (Anti Blocking)

Motor runs but blades 
remain stationary

Internal fault

Contact Service Agent

Cutting blade hot

Cutting blade blunt

Have blade sharpened

Cutting blade has dents

Have blade inspected/overhauled

Too much friction, due to lack of lubricant

Apply lubricant spray (1 609 200 399) 

Blade will not move

Battery discharged

Recharge battery; also see “Battery Charging”

Machine defective

Contact Service Agent

Excessive vibrations/ 
noise

Machine defective

Contact Service Agent

Cutting time per battery 
charge too low

Too much friction, due to lack of lubricant

Apply lubricant spray

Blade needs cleaning

Clean blade

Poor cutting technique

see “Working Advice”

Battery not fully charged

Recharge battery; also see “Battery Charging”

OBJ_BUCH-2506-004.book  Page 19  Wednesday, May 24, 2017  11:13 AM