Husqvarna K 1 PACE Instruction manual

Workshop manual
K 1 PACE, K 1 PACE Rail
English
1597 - 003 - 05.07.2023

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 Special safety instructions......................................4
2.4 Symbols on the product......................................... 4
3 Servicing data
3.1 Tightening torques ................................................ 6
4 Servicing tools
4.1 Servicing tools overview.......................................14
5 Product overview for repair and servicing
5.1 Product overview..................................................15
5.2 Product overview K 1 PACE Rail......................... 16
6 Troubleshooting
6.1 To troubleshoot the product................................. 17
7 Maintenance
7.1 Maintenance schedule......................................... 23
8 Repair instructions
8.1 Handle half........................................................... 24
8.2 Control unit...........................................................25
8.3 Power trigger and power trigger lockout.............. 26
8.4 Wiring assembly...................................................26
8.5 Control panel........................................................27
8.6 Blade guard..........................................................27
8.7 Drive belt ............................................................. 28
8.8 Pulleys..................................................................29
8.9 Cutter arm............................................................ 29
8.10 Motor.................................................................. 30
8.11 Gearbox............................................................. 31
8.12 Front handle....................................................... 34
8.13 Wet system........................................................ 34
9 Diagrams
9.1 Wiring diagram..................................................... 37
21597 - 003 - 05.07.2023

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.
1597 - 003 - 05.07.2023 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: Read the warning instructions that
follow before you use the product.
The service center that repairs the product must have
safety devices that obey local regulations. Warnings and
cautions are used to point out specially important parts
of the workshop manual.
2.3 Special safety instructions
• Apply a new warning label if a warning symbol on
the product is damaged or missing.
• Do not use accessories or spare parts that are not
approved by the manufacturer. Do not do changes
that are not approved by the manufacturer. This
can cause injury or death to the operator or other
persons.
• Use protective gloves and eye protection. Approved
protective goggles must agree with the ANSI Z87.1
standard in the USA or EN 166 in EU countries.
• When you use compressed air, do not point the
airflow in the direction of your body. Air can go into
the blood circulation and kill you.
• Use approved hearing protection. Noise from the
product can result in permanent hearing loss.
• The product can cause sparks. Do not operate the
product near flammable materials.
2.3.1 To remove the battery
WARNING: Always remove the battery before
you do repairs or do servicing on the product.
WARNING: Do not put the battery in the battery
holder before the product is assembled.
• Push the battery release button (A) and remove the
battery (B).
A
B
2.4 Symbols on the product
WARNING: This product can be
dangerous and cause serious injury or
death to the operator or others. Be careful
and use the product correctly.
Read the operator's manual carefully
and make sure that you understand the
instructions before you use this product.
Use approved protective helmet, hearing
protection, eye protection and respiratory
protection.
This product complies with applicable EC
Directives.
Dust forms when cutting. The dust can
cause injuries if inhaled. Use an approved
respiratory protection. Always provide for
good ventilation.
Sparks from the cutting blade can cause
fire in fuel, wood, clothes, dry grass or
other flammable materials.
4 - Safety 1597 - 003 - 05.07.2023

WARNING! Kickbacks can be sudden,
rapid and violent and can cause life
threatening injuries. Read and understand
the instructions in the manual before using
the product.
Make sure that the cutting blade does not
have cracks or other damages.
Do not use circular saw blades.
Environmental mark. The product or
package of the product is not domestic
waste. Recycle it at a recycling location
for electrical and electronic equipment.
Note: Other symbols/decals on the product refer to
certification requirements for some markets.
1597 - 003 - 05.07.2023 Safety - 5

3 Servicing data
3.1 Tightening torques
2-2.3
2-2.3
2-2.3
6-8
Tightening torque, Nm
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4-4.5
4-5
5-7
4.5-6.5
6-8
4-4.5
6-8
25-30
Tightening torque, Nm
K 1 PACE
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7-8
9-10
4-5
5-7
4.5-6.5
6-8
25-30
4-4.5
6-8
Tightening torque, Nm
K 1 PACE Rail
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2-2.3
3-4
5-6
6-8
Tightening torque, Nm
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25-30
6-8
5-6
2-4
5-6
Tightening torque, Nm
10 - Servicing data 1597 - 003 - 05.07.2023

5-7
2-2.5
1-1.5
6-8
6-8
Tightening torque, Nm
K 1 PACE
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5-7
6-8
6-8
1-1.5
2-2.5
Tightening torque, Nm
K 1 PACE Rail
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Tightening torque, Nm
K 1 PACE Rail
1597 - 003 - 05.07.2023 Servicing data - 13

4 Servicing tools
4.1 Servicing tools overview
1 2
6
58
4
9
3
7
Po-
si-
tion
Designation Used for Order No./Source
1 Combination wrench General. 506 38 26-01
2 Key Torx T27 General. 502 71 27-02
3 Bearing press To assemble blade shaft bearing. 506 37 61-02
4 Adapter cable for the Husq-
varna Service Hub
To update software together with the Husqvarna Service
Hub.
529 47 15-01
5 Internal bearing extractor To remove the bearings from the gearbox. Multiple suppliers
6 Grease gun To apply grease in the gearbox. 506 38 49-02
7 Grease For the gearbox. 588 81 48-01
8 Belt assembly tool To install and remove the drive belt. 596 55 26-02
9 Interface box for Rest Of
the World
To connect the product to the Husqvarna Service Hub. 598 07 28-01
9 Interface box for USA To connect the product to the Husqvarna Service Hub. 598 07 28-04
14 - Servicing tools 1597 - 003 - 05.07.2023

5 Product overview for repair and servicing
5.1 Product overview
1
2
3
4
56
12
11
10
9
20
19
17
16
14
13
7
8
18
15
1. Water nozzle
2. Water valve
3. Battery release button
4. Power trigger lockout
5. Power trigger
6. Rear ground support
7. Handle half left
8. Motor cover
9. Control panel
10. Cover
11. Front handle
12. Blade guard
13. Cutter arm
14. Belt guard
15. Type plate
16. Front ground support
17. Battery connector
18. Battery slot
19. Water connection with filter
20. Battery
1597 - 003 - 05.07.2023 Product overview for repair and
servicing - 15

5.2 Product overview K 1 PACE Rail
3
12
4
10
17
16
18
19
6
9
20
57
1
2
8
13
14
15
21
22
11
1. Power trigger lockout
2. Power trigger
3. Adjustment handle for blade guard
4. Blade guard
5. Cutting blade
6. Installation point for rail fixture on the right side
7. Flange for blade, spindle, arbor bushing
8. Spindle direction of rotation
9. Installation point for rail fixture on the left side
10. Front handle
11. Control panel
12. Rear handle
13. Battery release button
14. Battery slot
15. Motor air intake
16. Power cutter lock handle
17. Rail lock handle
18. Rail fixture
19. Belt guard
20. Type plate
21. Ground support front
22. Battery
16 - Product overview for repair
and servicing
1597 - 003 - 05.07.2023

6 Troubleshooting
6.1 To troubleshoot the product
1. Do the steps that follow and make a note of all the
faults you find:
a) Do a visual inspection of the product, refer to To
do a visual inspection of the product on page
17 .
b) Do a function test of the product, refer to To do a
function test of the product on page 17 .
c) Connect the product to Husqvarna Service Hub,
refer to To connect the Husqvarna Service Hub
on page 17
.
2. Refer to
Troubleshooting on page 19 and LED
indicators on the control panel on page 21 to
correct the faults you find.
3. Do a function test again to make sure that the
product operates correctly. Refer to To do a function
test of the product on page 17 .
6.1.1 To do a visual inspection of the product
1. Do a check of the blade guard. Replace the blade
guard if it is damaged, refer to To disassemble and
assemble the blade guard on page 27 .
2. Do a check of the handle halves. Replace the
handle halves if they are damaged, refer to To
disassemble and assemble the handle half on page
24 .
3. Do a check of the front handle. Replace the front
handle if it is bent or damaged, refer to To remove
and install the front handle on page 34 .
4. Do a check of the water valve. Replace the water
valve if it is damaged, refer to Wet system on page
34 . Not applicable for K 1 PACE RAIL.
5. Do a check of the ground support. Replace the
ground support if it is damaged, refer to
To remove
and install the front handle on page 34 .
6. Do a check of the cutter arm. Replace the ground
support if it is damaged, refer to To remove and
install the cutter arm on page 29 .
7. Make sure that all screws are installed. Tighten all
screws to the correct torque, refer to Tightening
torques on page 6 .
6.1.2 To do a function test of the product
• Make sure that the battery fits in the product. If the
battery does not fit, make sure that the battery is not
damaged.
• Do a check of the water nozzle and make sure
that water sprays from the water nozzle in the
blade guard. If water does not spray, refer to
Troubleshooting on page 19 . Not applicable for K
1 PACE RAIL
• Push the On/Off-button and make sure that the
battery indicator comes on. If the battery indicator
does not come on, refer to Troubleshooting on page
19 .
• Make sure that no warning indicators or X-Halt light
comes on or start to flash when you push the
On/Off-button. If a warning indicator or X-Halt light
comes on or start to flash, refer to LED indicators on
the control panel on page 21 . For Rail, activate the
clamp switch with a RA 11 or a mandrel.
• Make sure that the blade shaft turns when you pull
the power trigger. If the blade shaft does not turn,
refer to Troubleshooting on page 19 .
• Start the product and keep it on for 15 seconds.
Make sure that no vibrations or unusual noises
come from the product and that the warning
indicators stay off. If unusual vibrations or noises
come from the product or if a warning indicator
comes on, refer to
Troubleshooting on page 19 .
6.1.3 To troubleshoot the product with the
Husqvarna Service Hub
The Husqvarna Service Hub is used with a computer
(not included) to troubleshoot the product and to update
the software in the product.
You must always connect the product to the Husqvarna
Service Hub when you troubleshoot the product, also
when the problem is a visual damage on the product.
1. Connect the product to the Husqvarna Service Hub.
Refer to To connect the Husqvarna Service Hub on
page 17 .
2. Read the error codes in the Husqvarna Service Hub.
3. Use the Husqvarna Service Hub to update the
software of the product.
4. Do a diagnostic test in Husqvarna Service Hub.
6.1.4 To connect the Husqvarna Service Hub
Note: The product can start when connected to
Husqvarna Service Hub. Always remove the cutting
1597 - 003 - 05.07.2023 Troubleshooting - 17

blade before you connect the product to Husqvarna
Service Hub.
1. Connect the adapter cable for the Husqvarna
Service Hub to the battery and the battery connector
on the product.
2. Connect the cable to the Husqvarna Service Hub.
3. Start the product to do a software update.
Note: Refer to the manual of the Husqvarna Service
Hub for instructions and obey the instructions.
6.1.5 To do troubleshooting of the Husqvarna
Service Hub
If there is no signal to the Husqvarna Service Hub 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 connected to the computer
that runs the Husqvarna Service Hub is clean and
not damaged. Replace the cable if it is damaged.
3. Restart the computer.
4. Install the software again.
18 - Troubleshooting 1597 - 003 - 05.07.2023

6.1.6 Troubleshooting
Problem Cause Solution
The product does not start. No
LEDs come on when you push
the On/Off button on the prod-
uct.
The battery is damaged. Do a test with a different battery.
The plug between the battery and the
product is damaged.
Make sure that the power connectors be-
tween the battery and the product are
not dirty or damaged.
The battery is not correctly installed in
the product.
Remove the battery and install it correct-
ly.
The control unit is damaged.
Replace the control unit, refer to To re-
move and install the control unit on page
25 . Connect the product to Husqvarna
Service Hub and refer to the spare part
change flow.
The control panel is damaged.
Replace the control panel, refer to To
remove and install the control panel on
page 27 . Connect the product to Husq-
varna Service Hub and refer to the spare
part change flow.
The cables between the control unit and
the control panel are damaged.
Replace the cables between the control
unit and the control panel, refer to To
remove and install the wiring assembly
on page 26 .
The cables between the control unit and
the main switch are damaged.
Replace the cables between the control
unit and the main switch, refer to To re-
move and install the wiring assembly on
page 26 .
A fuse is blown.
Do a test of the fuse. If the fuse is
broken, replace the control unit and the
fuse, refer to To remove and install the
control unit on page 25 .
The product is on, but a warn-
ing indicator or a X-Halt indica-
tor is on or flashes.
There is an error in the product. Refer to
LED indicators on the control
panel on page 21 .
The product is on but the motor
does not start when you push
the power trigger.
The power trigger is damaged.
Start the product and pull the power trig-
ger again with less load.
Do a test of the power trigger in the
Husqvarna Service Hub.
The cables in the motor is damaged. Replace the motor, refer to
To remove
and install the motor on page 30 .
The motor is damaged. Replace the motor, refer to
To remove
and install the motor on page 30 .
The motor is on but the blade
shaft does not rotate. The drive belt is damaged or worn. Replace the drive belt, refer to
Drive belt
on page 28 .
An unusual noise comes from
the front bearings.
The bearings are damaged or worn.
Replace the bearings, refer to To remove
the bearings on page 32 and To install
the blade shaft bearing with a Husqvarna
bearing press on page 32 or To install
the bearings with a standard press on
page 33 .
There are unusual vibrations
when the product is on.
1597 - 003 - 05.07.2023 Troubleshooting - 19

Problem Cause Solution
The product makes a sudden
movement when you push the
power trigger, then immediately
stops.
There is a short circuit in the control
unit.
Replace the control unit, refer to To re-
move and install the control unit on page
25 . Connect the product to Husqvarna
Service Hub and refer to the spare part
change flow.
The speed of the motor is irreg-
ular.
The control panel is damaged.
Replace the control panel, refer to To
remove and install the control panel on
page 27 .
The power trigger is damaged.
Replace the power trigger, refer to To
remove and install the power trigger and
the power trigger lockout on page 26 .
The product stops when you
apply work load.
There is too much work load on the
product.
Start the product again and apply less
work load.
The product does not connect
to the Husqvarna Service Hub.
The control unit is damaged.
Replace the control unit, refer to To re-
move and install the control unit on page
25 . Connect the product to Husqvarna
Service Hub and refer to the spare part
change flow.
The adapter cable is damaged. Do a check of the adapter cable.
The interface box is damaged. Use a different interface box.
Not applicable for K 1 PACE
RAIL
The water nozzle does not
spray water on the diamond
blade.
The water nozzle on the blade guard is
blocked.
Do a check of the water nozzle on the
blade guard. Clean the water nozzle on
the blade guard if it is necessary.
The water hose is blocked. Do a check of the water hose. Make sure
that there is no blockage.
The filter is clogged. Do a check of the water inlet filter. Clean
the water inlet filter if it is necessary.
Only K 1 PACE Rail
The product does not cut
straight.
The sleeve is loose. Do a check of the sleeve, make sure that
it is tightened correctly.
The sleeve is not adjusted. Adjust the sleeve.
There is dirt around the blade shaft. Clean the area around the blade shaft.
The cutter arm is bent. Replace the cutter arm.
The threads on the locking shaft are
damaged.
Clean the threads and replace the lock-
ing shaft if necessary.
The threads in the sleeve are damaged. Clean the threads and replace the sleeve
if necessary.
The rail attachment is bent. Replace the RA 11.
There are metal burr on the rail attach-
ment.
Remove metal burr.
The arms of RA 11 are bent. Replace the RA 11.
20 - Troubleshooting 1597 - 003 - 05.07.2023