Husqvarna 340iBT Instruction manual

Workshop manual
340iBT
English
1126 - 001 - 08.11.2019

Contents
1 Introduction
1.1 Document description............................................ 3
1.2 Target group...........................................................3
1.3 Revisions................................................................3
1.4 Safety..................................................................... 3
1.5 Servicing tools........................................................3
2 Safety
2.1 Safety definitions....................................................4
2.2 General safety instructions.....................................4
2.3 Symbols on the product......................................... 4
2.4 Battery use and safety........................................... 4
2.5 Special safety instructions......................................4
3 Servicing data
3.1 Servicing data........................................................ 5
4 Servicing tools
4.1 Servicing tools......................................................10
4.2 Diagnostic tools....................................................10
5 Repair instructions
5.1 To assemble the tube and handle on the
product....................................................................... 12
5.2 To put the product in transportation mode........... 13
5.3 To clean and examine the product parts..............13
5.4 To disassemble the nozzle...................................13
5.5 To remove and install the harness....................... 13
5.6 To disassemble and assemble the motor
housing.......................................................................13
5.7 To disassemble and assemble the battery
holder......................................................................... 15
5.8 Electrical system.................................................. 16
6 Troubleshooting
6.1 Overhaul...............................................................24
6.2 Troubleshooting of products with digital user
interface..................................................................... 24
6.3 Troubleshooting products with mechanical
user interface............................................................. 25
6.4 Troubleshooting of the battery and battery
charger....................................................................... 26
7 Technical data
7.1 Technical data......................................................28
21126 - 001 - 08.11.2019

1 Introduction
1.1 Document description
This manual gives a full description of how to do
maintenance and repair on the product. It also gives
safety instructions that the personnel must obey.
1.2 Target group
This manual is for personnel with a general knowledge
of how to do repair and do servicing. All personnel that
do repair or do servicing on the product must read and
understand the manual.
1.3 Revisions
Changes to the product can cause changes to the
maintenance work and spare parts. Separate
information is sent out for each change.
Read the manual together with all received information
about changes to maintenance and spare parts for the
product.
1.4 Safety
WARNING: All personnel that repair or do
servicing on the product must read and
understand the safety instructions in this
workshop manual.
1.5 Servicing tools
The manual gives information about necessary servicing
tools. Always use original tools from Husqvarna.
1126 - 001 - 08.11.2019 Introduction - 3

2 Safety
2.1 Safety definitions
Warnings, cautions and notes are used to point out
specially important parts of the manual.
WARNING: Used if there is a risk of injury or
death for the operator or bystanders if the
instructions in the manual are not obeyed.
CAUTION: Used if there is a risk of damage to
the product, other materials or the adjacent area
if the instructions in the manual are not obeyed.
Note: Used to give more information that is necessary in
a given situation.
2.2 General safety instructions
WARNING: Apply a new warning label if a
warning symbol on the product is damaged or
missing.
2.3 Symbols on the product
Start/stop (Digital user interface)
Boost button (Digital user interface)
Cruise control button
Warning indicator/Fault indicator
On (Mechanical user interface)
Off (Mechanical user interface)
2.4 Battery use and safety
•Use appliances only with specifically designated
battery packs. Use of any other battery packs may
create a risk of injury and fire.
•When battery pack is not in use, keep it away from
other metal objects, like paper clips, coins, keys,
nails, screws or other small metal objects, that can
make a connection from one terminal to another.
Shorting the battery terminals together may cause
burns or a fire.
•Under abusive conditions, liquid may be ejected
from the battery; avoid contact. If contact
accidentally occurs, flush with water. If liquid
contacts eyes, additionally seek medical help. Liquid
ejected from the battery may cause irritations or
burns.
•Do not use a battery pack or appliance that is
damaged or modified. Damaged or modified
batteries may exhibit unpredictable behavior
resulting in fire, explosion or risk of injury.
•Do not expose a battery pack or appliance to fire or
excessive temperature. Exposure to fire or
temperature above 130°C (266°F) may cause
explosion.
•Follow all charging instructions and do not charge
the battery pack or appliance outside of the
temperature range specified in the instructions.
Charging improperly or at temperatures outside of
the specified range may damage the battery and
increase the risk of fire.
2.5 Special safety instructions
2.5.1 To connect the battery to the product
WARNING: Only use Husqvarna original
batteries in the product.
1. Charge the battery fully.
2. Push the battery into the battery holder of the
backpack. The battery locks into position when you
hear a click.
CAUTION: If the battery does not move
easily into the battery holder, the battery is
not installed correctly. This can cause
damage to the product.
4 - Safety 1126 - 001 - 08.11.2019

3 Servicing data
3.1 Servicing data
For products with mechanical user interface.
(x3) 1.9 Nm
T27
(x1) 4.6 Nm
T27
1126 - 001 - 08.11.2019 Servicing data - 5

For products with digital user interface.
(x3) 1.9 Nm
T27
(x1) 4.6 Nm
T27
6 - Servicing data 1126 - 001 - 08.11.2019

(x2) 1.9 Nm
T27
(x7) 1.9 Nm
T27
(x1) 1.9 Nm
T27
(x2) 1.9 Nm
T27
(x2) 1.9 Nm
T27
(x2) 1.9 Nm
T27
1126 - 001 - 08.11.2019 Servicing data - 7

For products with mechanical user interface.
(x2)1.9 Nm
T27
(x4)1.9 Nm
T27
8 - Servicing data 1126 - 001 - 08.11.2019

For products with digital user interface.
(x2)1.9 Nm
T27
(x4)1.9 Nm
T27
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4 Servicing tools
4.1 Servicing tools
CST
INSTRUCTION
3
2
1
4
Pos. Description Used for Order No.
1 Diagnostic Tool Kit Diagnostic examination and
troubleshooting
583 89 71-01
2 Adapter cable for battery prod-
ucts
Diagnostic examination of bat-
tery products with Engine Diag-
nostic Tool - AutoTune™ (576
69 23-01)
581 19 23-01
3 T-handle Torx T27 Torx screws 502 71 27-03
4 Tool - fan assembley To install the fan 598 95 65-01
4.2 Diagnostic tools
4.2.1 Common service tool
The common service tool (CST) is used with a computer
(not included) for Husqvarna products.
The common service tool transmits data from the
product and battery to the computer, for example
product ID. There is also a diagnostic tool list and a list
of saved error codes. The common service tool is also
used to update the software in battery products.
4.2.2 To connect the common service tool (CST)
Note: It can be necessary to install firmware to a new
spare part. Make sure that you know the Husqvarna
identification number (HID) of the new spare parts
before you connect the product to common service tool
10 - Servicing tools 1126 - 001 - 08.11.2019

(CST). The identification number is found on the spare
part.
1. Remove the batteries from the product.
2. Connect the adapter cable (A) to the battery (B) and
to the lower battery slot connector (C) on the
product.
B
C
A
D
3. Start the product.
4. Connect the cable (D) to the common service tool
(CST).
5. Obey the instructions on the common service tool
(CST) and in the related chapter in this manual.
CAUTION: Do not disconnect the product
until the update is completed.
WARNING: Do not push the power trigger.
The motor can start in servicing mode.
4.2.3 To do troubleshooting of the common service
tool
If there is no signal to the common service tool when it is
connected to the product, do the procedure that follows.
1. Make sure that the connectors on the battery and on
the product are clean and not damaged. Replace the
battery or control unit on the product if there is
damage.
2. Make sure that the cable to the common service tool
is clean and not damaged. Replace the cable if there
is damage.
3. Restart the computer.
4. Install the software again.
1126 - 001 - 08.11.2019 Servicing tools - 11

5 Repair instructions
5.1 To assemble the tube and handle on the
product
1. Put the clamp (A) on the flexible tube (B) and push
the flexible tube onto the blower outlet (C).
C
A
B
D
2. Put the screw (D) on the clamp below the tube and
tighten the screw.
3. Attach the transport strap (E) to the guide track of
the joint swivel (F).
F
E
4. Put the clamp (G) on the flexible tube (B) and attach
the joint swivel (F).
G
B
H
F
5. Put the screw (H) on the clamp below the tube and
tighten the screw.
6. Align the knobs (I) to each side of the joint swivel
(F).
FI
J
K
7. Attach the operation handle (J) to the guide track (K)
of the joint swivel (F). Make sure that the screw on
the operation handle is on the bottom side of the
control pipe.
8. Tighten the screw on the operation handle fully.
9. Connect the intermediate pipe (L) to the joint swivel
(F). Make sure that the knob (I) aligns with the guide
track of the intermediate pipe.
F
L
N
M
I
10. Turn the intermediate pipe (L) fully to lock the joint
swivel (F) and the intermediate pipe.
11. Connect the blow pipe (M) to the intermediate pipe
(L). Make sure that the knob (N) on the intermediate
pipe points up and goes into the guide track of the
blow pipe.
12. Turn the blow pipe fully to lock the intermediate pipe
and the blow pipe.
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13. Attach the cable clamp to the flexible tube. Put the
cable of the operation handle in the loop on the
cable clamp.
.
5.2 To put the product in transportation mode
1. Turn the blower tube until it points up.
2. Connect the transport clip.
5.3 To clean and examine the product parts
• Clean and examine all parts fully. You find more
instructions in the chapter for each part if special
tools or procedures are necessary.
• Replace damaged or defective parts.
• Always use original spare parts.
5.4 To disassemble the nozzle
• Turn the nozzle to remove it from the blow pipe.
5.5 To remove and install the harness
1. Remove the 5 screws to remove the harness.
2. Remove the harness fasteners.
3. Install in opposite sequence.
5.6 To disassemble and assemble the motor
housing
WARNING: Disconnect the battery to prevent
short circuit.
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CAUTION: Do not pull the wires. They are
easily damaged.
1. Remove the 2 screws that hold the air intake.
2. Remove the 9 screws and remove the motor cover
(A).
E
A
B
C
F
D
3. Remove the outer muffler (B).
4. Remove the air outlet (C).
5. Remove the air intake (D).
6. Move the motor assembly (E) in the direction of the
cables.
7. Remove the inner muffler (F).
8. Assemble in the opposite sequence and obey the
instructions that follow.
a) Make sure that the inner muffler does not cause
a blockage to the airflow from the batteries.
b) The guide pins on the motor must align with the
grooves in the mufflers.
c) Make sure that the motor cables is in the groove
in the inner muffler.
590 81 82
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d) Make sure that the air outlet is installed in the
correct position.
5.7 To disassemble and assemble the battery
holder
WARNING: Disconnect the battery to prevent
short circuit.
CAUTION: Do not pull the wires. They are
easily damaged.
1. Disassemble the motor housing. Refer to To
disassemble and assemble the motor housing on
page 13 .
2. Remove the 2 screws and carefully turn the battery
holder 180º.
3. Remove the 2 battery connectors (A) and the airflow
cover (B).
AB
4. Assemble in the opposite sequence. Make sure to
put the airflow cover (B) on the guide pin and the
cables in the cable holders.
5. Put the cables from the control unit around the pin.
1126 - 001 - 08.11.2019 Repair instructions - 15

5.8 Electrical system
5.8.1 Electrical diagram
Trigger
Motor/Fan
123 4 56789
Blue
Red
White
Black
J8
J8
1
4
7
3
6
9
2
5
8
123 4 56789
123 4 56789
White Blue
Grey
Green Black
Orange Red
White
Blue
Grey
Green Black
Orange
Red
Black
Black
P7
P8
ESD Handle
Blue
Blue
P9
P6
J10
1
4
7
3
6
9
2
5
8
J10
Battery 1
Handle
Battery 2
Electric
340iBT-RoW
Red
Black
Blue
Blue
Black
Red
Red
Red
Black
Black
Blue
Blue
Red
Red
Black
Black Black
Black
Red
Red
5.8.2 Operation handle
5.8.2.1 To remove and install the operation handle
1. Remove the screw and the operation handle.
2. Install in the opposite sequence.
5.8.2.2 To disassemble the operation handle with digital
user interface
WARNING: Disconnect the batteries to prevent
short circuit.
CAUTION: Do not pull the wires. They are
easily damaged.
1. Remove the operation handle from the handlebar.
Refer to To remove and install the operation handle
on page 16 .
2. Remove the 3 screws and remove the handle half
that is not connected to the main cable.
16 - Repair instructions 1126 - 001 - 08.11.2019

3. Remove the power switch.
4. Loosen the strain relief (A).
BCD
E
A
5. Remove the main cable (B), the ESD catch (C) and
the user interface (D) from the operation handle.
6. Disconnect the user interface (D) from the main
cable connector (E).
7. Remove the ESD cable from the hooks on the ESD
catch (C).
8. To assemble the operation handle, refer to To
assemble the operation handle with digital user
interface on page 17 .
5.8.2.3 To assemble the operation handle with digital
user interface
WARNING: Disconnect the batteries to prevent
short circuit.
CAUTION: Do not pull the wires. They are
easily damaged.
1. Make a note of the Husqvarna identification number
(HID) of the new user interface before you install it.
The identification number is found on the new
control unit.
2. Install the ESD cable to the ESD catch.
3. Connect the user interface (A) to the main cable
connector (B).
CDA
B
E
4. Install the user interface (A) and the main cable (C).
5. Install the ESD catch (D).
6. Install the power trigger. Make sure that the
microswitch lever on the user interface is not
damaged.
1126 - 001 - 08.11.2019 Repair instructions - 17

7. Push and hold the spring in the direction of the
power trigger.
8. Make sure that the edge of the power trigger is in
the handle.
9. Attach the strain relief (E).
10. Assemble the operation handle.
11. Attach the operation handle to the handlebar. Refer
to To remove and install the operation handle on
page 16 .
12. Connect the product to the common service tool
(CST) and install new firmware if the user interface
is replaced. Refer to To connect the common
service tool (CST) on page 10 .
5.8.2.4 To disassemble the operation handle with
mechanical user interface
WARNING: Disconnect the batteries to prevent
short circuit.
CAUTION: Do not pull the wires. They are
easily damaged.
1. Remove the operation handle from the handlebar.
Refer to To remove and install the operation handle
on page 16 .
2. Remove the 3 screws and remove the handle half
that is not connected to the main cable.
3. Loosen the strain relief (A). Lift the main cable (B),
the ESD catch (C), the user interface (D).
BCD
F
G
A
E
4. Lift the power trigger (E) and the main switch (F)
from the operation handle.
5. Disconnect the user interface (D) and the main
switch (F) from the main cable connectors (G).
6. Remove the ESD cable from the ESD catch.
7. To assemble the operation handle, refer to To
assemble the operation handle with mechanical user
interface on page 18 .
5.8.2.5 To assemble the operation handle with
mechanical user interface
WARNING: Disconnect the batteries to prevent
short circuit.
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CAUTION: Do not pull the wires. They are
easily damaged.
1. Install the ESD cable to the ESD catch.
2. Connect the user interface (A) and the main switch
(B) to the main cable connectors (C).
DEA
B
C
G
F
3. Install the main switch (B).
4. Install the main cable (D) and the ESD catch (E).
5. Install the power trigger (F). Make sure that the edge
of the power trigger is in the operation handle.
6. Install the user interface. Make sure that the cables
are in the correct position.
7. Attach the strain relief (G).
8. Assemble the operation handle.
9. Attach the operation handle to the handlebar. Refer
to To remove and install the operation handle on
page 16 .
5.8.3 To replace the main cable in the motor
housing
WARNING: Disconnect the batteries to prevent
short circuit.
CAUTION: Do not pull the wires. They are
easily damaged.
1. Disassemble the motor housing. Refer to To
disassemble and assemble the motor housing on
page 13 .
2. Remove the 2 screws and move the 3 cables.
1126 - 001 - 08.11.2019 Repair instructions - 19

3. Lift the plate.
4. Remove the strain relief (A).
A
B
5. Disconnect the connector (B).
6. Remove the main cable.
7. Install the main cable in opposite sequence.
5.8.4 To replace the motor
1. Disassemble the motor housing. Refer to To
disassemble and assemble the motor housing on
page 13 .
2. Remove the 2 screws and move the 3 cables.
3. Lift the plate.
4. Disconnect the motor cables.
5. Remove the motor.
6. Install in the opposite sequence.
5.8.5 To remove the fan from the motor
1. Disassemble the motor housing. Refer to To
disassemble and assemble the motor housing on
page 13 .
2. Remove the motor. Refer to To replace the motor on
page 20 .
20 - Repair instructions 1126 - 001 - 08.11.2019