Stihl Cutquik TS 410-A, Cutquik TS 420-A Technical Information

STIH)

Technical Information

TI_19_2010_30_01_01.fm

englisch / English

New cut-off machines STIHL Cutquik®TS 410-A, TS 420-A – Series 4238

Contents

1. Electronic water control

2. Specifications

3. Servicing accessories

4. Spare parts

5. Servicing

1. Electronic water control

The new cut-off machines STIHL Cutquik®
TS 410-A, TS 420-A are equipped with the new,
innovative electronic water control.

Benefits:

. The optimum amount of water is always fed to

the cutting wheel during use

. The water supply is cut off automatically during

idling

. Easy operation via the ergonomically arranged

control panel

. Time savings, e. g., due to less frequent refilling

of the STIHL pressurized water tank

Both the potential applications and uses as well as
the other product features are equivalent to those of

the cut-off machines STIHL Cutquik

®

TS 410, 420.

1.1 Functional description

The electronic water control consists essentially of
the following components:

– Control panel (1)

– Generator (2) – behind the flywheel

– Solenoid valve (3) – with integral control

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The generator ensures that power is supplied to the
solenoid when the engine is running.

Using the buttons of the ergonomically arranged
control panel, the user can adjust both the water
flow rate as well as manually activating and
deactivating the water control.

1.1.1 Before starting work

. While the engine is switched off: Familiarize

yourself with the sequence of motions

. All of the control panel buttons can be operated

with the thumb of the right hand – the right hand
always remains on the rear handle during
operation

. The left hand always remains on the handlebar

1.1.2 Control Panel

When the engine is running, it is possible to activate
/ deactivate the electronic water control and adjust
the water flow.

1 Button (+):

Activate the electronic water control or increase
water flow to cutting wheel

2 Button (–):

Activate the electronic water control or decrease
water flow to cutting wheel

3 Deactivate electronic water control; no water is

fed to the cutting wheel

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1.1.3 Using the Electronic Water Control

. Start the engine in accordance with the

Instruction Manual

. Blip the (+) button or (–) button with the thumb of

the right hand – the right hand always remains
on the rear handle during operation, the left
hand always remains on the handlebar – no
water is fed to the cutting wheel during idling

During use, the set amount of water is fed to the
cutting wheel.

. Adjust water flow if necessary – to do so, blip the

(+) button or (–) button with the thumb of the
right hand until the correct water quantity is
attained – the right hand always remains on the
rear handle during operation, the left hand
always remains on the handlebar

If the engine is idling, no water will be fed to the
cutting wheel – the electronic water control,
however, remains activated, so when work
continues, the last quantity of water set before the
idle phase will be fed to the cutting wheel again
automatically.

1.1.4 Maintenance and Care

To protect the solenoid valve, a screen is installed in
the water connection.

If too little water or no water is fed to the cutting
wheel during use with the electronic water control
activated:

. Remove the coupling sleeve (1)
. Unscrew "water connection with screen" (2) and

rinse under running water – the screen remains
on the water connection

2. Specifications

2.1 Weight

dry, without cutting wheel

without electronic water control

TS 410: 9.4 kg
TS 420: 9.6 kg

with electronic water control

TS 410-A: 9.9 kg
TS 420-A: 10.1 kg

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3. Servicing accessories

3.1 New special tools

3.1.1 Power adapter 4238 400 8500

The power adapter 4238 400 8500 permits fast
troubleshooting (see b 5.1, b 5.2).

3.1.2 Spacer 4238 894 1100

The flywheel must be removed with the previous
puller 1135 890 4500 (to be changed to
5910 890 4504) and the new spacer 4238 894 1100
(see b 5.3), in order to avoid damaging the
generator beneath it.

3.2 Existing special tools

The existing special tools are listed in the Service

Manual for STIHL Cutquik

®

TS 410, 420.

4. Spare parts

The spare parts lists will be available for market
launch and are already contained on the DVD
STIHL Service Communication System (01/2010).

4.1 Clutch

In the new cut-off machines STIHL Cutquik

®

TS 410-A, TS 420-A, the new clutch 4238 160 2002
is used. In the new version, the previous tension
spring 0000 997 0912 with 6 coils is replaced by the
new version 0000 997 5510 with 7 coils.

In the new cut-off machines STIHL Cutquik

®

TS 410-A, TS 420-A, only the new clutch
4238 160 2002 should be used as a replacement
part.

5. Servicing

The safety instructions in the instruction manual
must be observed if the machine has to be started
up during servicing.

5.1 Troubleshooting Plan for the Electronic
Water Control

Possible customer complaint

– No water flow or water flow too low

– Water flow cannot be adjusted via the control

panel buttons

– System leaks

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