Husqvarna LB 548 i Workshop Manual
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Husqvarna LB 548 i Workshop Manual

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Workshop manual
LB 548 i
English
1410 - 001 -

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Summary of Contents for Husqvarna LB 548 i

  • Page 1 Workshop manual LB 548 i English 1410 - 001 -...

  • Page 2: Table Of Contents

    3.1 Servicing schedule..........6 10.1 Technical data............39 3.2 Function test............7 10.2 Registered trademarks........40 4 Servicing data 4.1 LB 548 i ..............9 4.2 Rear axle and front axle........10 4.3 Handle..............11 4.4 Covers ..............12 4.5 Power unit............13 5 Servicing tools 6 Function overview 6.1 Rating plate and product serial number....

  • Page 3: Introduction

    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. 1410 - 001 - Introduction - 3...

  • Page 4: Safety

    Noise emission to the environment that have tension. according to the European Community’s • Use only a Husqvarna Battery Series type of battery Directive. The product’s emission is with this product. Obey the safety instructions that specified in the Technical data chapter are given for the battery and battery charger.
  • Page 5 Start procedure: push ON/OFF button, loos- en start inhibitor, push motor brake handle down. Release motor brake handle to stop. Slow Fast Note: Other symbols/decals on the product refer to certification requirements for some markets. 1410 - 001 - Safety - 5...

  • Page 6: Prepare And Do Servicing On The Product

    3 Prepare and do servicing on the product 3.1 Servicing schedule After each Every 10 Every 25 Maintenance task Before use hours hours Product Do a general inspection. Clean the product. Clean the transmission covers. Make sure that the motor does not have grass on it.

  • Page 7: Function Test

    3.2 Function test 7. Loosen the start inhibitor. 3.2.1 Control panel overview 8. Push the motor brake handle in the direction of the handlebar. 1. ON/OFF button ™ ™ To use the SavE function 2. SavE button, refer to ™ 3.2.3 To use the SavE function on page 7...
  • Page 8 3.2.4 To stop the product The product stops automatically if you do not operate it for 3 minutes. 1. Release the motor brake handle to stop the motor. 2. Push the ON/OFF button on the control panel. All LED lights and symbols on the display go out. 3.

  • Page 9: Servicing Data

    4 Servicing data 4.1 LB 548 i 24 Nm 14 mm 70 Nm 14 mm 1410 - 001 - Servicing data - 9...

  • Page 10: Rear Axle And Front Axle

    4.2 Rear axle and front axle 6 Nm 10 mm 6 Nm 10mm 8 Nm 6 Nm 10 - Servicing data 1410 - 001 -...

  • Page 11: Handle

    4.3 Handle 0.7 - 1.2 Nm 1.2 - 1.7 Nm 1.2 - 1.7 Nm 1410 - 001 - Servicing data - 11...

  • Page 12: Covers

    4.4 Covers 1.2 - 1.4 Nm 1.2 - 1.4 Nm 1.2 - 1.4 Nm 1.2 - 1.4 Nm 12 - Servicing data 1410 - 001 -...

  • Page 13: Power Unit

    4.5 Power unit 1.2 - 1.4 Nm 1.2 - 1.4 Nm 1.2 - 1.4 Nm 2.0 - 3.0 Nm 1.2 - 1.4 Nm 1.2 - 1.4 Nm 1.2 - 1.4 Nm 1.2 - 1.4 Nm 2.0 - 3.0 Nm 1.2 - 1.4 Nm 0.7 - 1.0 Nm 8.0 - 15.0 Nm 12 mm...

  • Page 14: Servicing Tools

    5 Servicing tools Item Description Use for Article number Open Wrench 10,13,14 mm Bolts T-handle Torx T20 Screw with torx head 588 59 85-01 T-handle Torx T30 Screw with torx head 502 71 31-01 Snap ring pliers Snap rings Screwdriver, PH4 Screws Screwdriver, flat Hubcaps...

  • Page 15: Function Overview

    XXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXX XXXXXXXXXXX XXXXX XXXX 20XX Use only with Husqvarna BLi batteries LED lights Battery status All LEDs are lit Fully charged (75-100%) LED 1, LED 2, LED 3 are The battery is 50%-75% 6.2 Motor...
  • Page 16 6. Remove the battery from the battery charger. 6.3.3 Battery charging status A Husqvarna Li-ion battery can be charged or used at all charging levels. The battery is not damaged. A fully charged battery will not decrease its charge when the battery is left in the charger.

  • Page 17: Repair Instructions

    7 Repair instructions 7.1 Product overview for repair instructions 1. Control panel 5. Front axle 2. Start inhibitor 6. Rear axle 3. Motor 4. Blade 1410 - 001 - Repair instructions - 17...

  • Page 18: Power Unit Overview

    7.2 Power unit overview 1. Battery box 9. Air outlet 2. Fan 3. Connections between the battery box and the motor 7.3 Battery box overview 4. Motor Control box Note: The illustration shows the battery box turned with 5. Motor the top down 6.

  • Page 19: To Clean And Examine The Product Parts

    1. Connections between the battery box and the motor 2. Left fan 3. Bracket for the battery box cables 4. Cable bracket for the left battery 5. Cable bracket for the right battery 6. Key switch 7. Right fan 7.4 To clean and examine the product parts •...

  • Page 20: Blade

    7.5 Blade 9. Pull the blade around by hand and make sure that it turns freely. 7.5.1 To remove and replace the blade WARNING: Use heavy duty gloves. The 1. Lock the blade with a block of wood. blade is very sharp and cuts can easily occur.

  • Page 21: Front Axle

    7.7 Front axle 7.6.2 To remove and attach the rear wheels 1. Use a flat screwdriver to remove the hub cap on the 7.7.1 To disassemble and assemble the front axle 2 sides of the product. To remove and 1. Remove the front wheels, refer to attach the front wheels on page 20 .

  • Page 22: Rear Axle

    4. Remove the 4 screws and the brackets. Remove the 3. Remove the washers and the spring on the 2 sides front axle. of the product. 5. Assemble the front axle in the opposite sequence. 4. Pull the handle lock rearward. 7.8 Rear axle 7.8.1 To remove and attach the rear axle 1.
  • Page 23 5. Remove the 2 snap rings and the handle. 7. Remove the rear scrapers. 8. Remove the rear spring. 6. Remove the snap ring and the rod. 1410 - 001 - Repair instructions - 23...
  • Page 24 9. Remove the 4 nuts, the 4 washers, and the 4 12. If it is necessary, remove the handle locks from the screws. handle support brackets. 10. Remove the handle support brackets and the rear axle. 13. Attach in the opposite sequence. 11.

  • Page 25: Motor

    7.9 Motor 3. Pull the rear lock rearward and push the handle forward. 7.9.1 To remove and install the power unit 1. Remove the batteries from the power unit. Remove the safety key, if it is installed. 4. Put the mower in its service position. 2.
  • Page 26 To remove and replace 6. Remove the blade, refer to 7.9.2 To remove the cover from the power unit the blade on page 20 . 1. Remove the power unit from the chassis. Refer to To remove and install the power unit on page 25 . 2.
  • Page 27 5. Remove the 6 screws. 7.9.3 To remove the motor control box To remove and install the power unit on 1. Refer to page 25 and To remove the cover from the power unit on page 26 . 2. Loosen the screw and push the plastic plate to the side.
  • Page 28 4. Pull up the cables (A, B and C) and disconnect 4. Pull up the fan cables and disconnect them. them. 5. Remove the screws and remove the battery control box. 5. Remove the motor control box (D). Replace the motor control box, if it is necessary.
  • Page 29 7.9.5 To remove the battery box 3. Remove the 3 screws and remove the bracket (A). To remove and install the power unit on 1. Refer to page 25 , To remove the cover from the power unit on page 26 and To remove the battery control box on page 28 .
  • Page 30 7.9.7 To remove the fans and the air filters 3. Remove the 2 screws (A) and remove the cover (B). To remove and install the power unit on 1. Refer to page 25 , To remove the cover from the power unit on page 26 , To remove the battery control box on page 28 and To remove the battery box on page 29 .
  • Page 31 7.9.8 To remove air conductor 7.9.9 To remove the motor To remove and install the power unit on To remove and install the power unit on 1. Refer to 1. Refer to page 25 , To remove the cover from the power unit page 25 , To remove the cover from the power unit on page 26 , To remove the battery box on page 29 , on page 26 , To remove the motor control box on...

  • Page 32: Control Panel

    7.10 Control panel 7.11 Start inhibitor 7.10.1 To disassemble and assemble the control 7.11.1 To remove and install the start inhibitor panel 1. Remove the 4 screws and remove the cover on the left side of the start inhibitor. Pull the cables out of 1.
  • Page 33 4. Remove the right side of the start inhibitor. 5. Remove the drive bail wire. 6. Install the start inhibitor in the opposite sequence. Servicing tools on Use the correct torque. Refer to page 14 . 1410 - 001 - Repair instructions - 33...

  • Page 34: Troubleshooting

    8 Troubleshooting 8.1 Troubleshooting schedule To do Problem Possible cause Step Troubleshooting There is no battery in the Make sure that the battery is installed cor- Install a battery. battery box. rectly. The battery is defective. Push the button on the battery and do a Replace the bat- check of the battery error condition.

  • Page 35: Troubleshooting Schedule

    8.2 Troubleshooting schedule To do Problem Possible cause Step Troubleshooting The warning indicator shows Make sure that the cutting motor is instal- Connect the phase the error code 2: Cutting mo- led correctly and that the phase cables are cables correctly or tor phase connection is de- not defective.

  • Page 36: Troubleshooting Schedule

    8.3 Troubleshooting schedule To do Problem Possible cause Step Troubleshooting The warning indicator shows Operate the product without load on the The product stops if the error code 3: Cutting mo- blade. the load is to high. tor high current alarm. Make sure that the blade is not blocked Replace the blade and that it can rotate freely.

  • Page 37: Troubleshooting Schedule

    8. On the computer, start the update and wait until the update is done. The CST transmits data from Husqvarna products and the batteries to a computer (not included). There is a 9. Stop the product, turn the safety key to 0.

  • Page 38: Wiring Diagram

    9 Wiring diagram 9.1 Wiring diagram Black Black Yellow Green Blue Brown Brown Blue White Black Yellow Green 38 - Wiring diagram 1410 - 001 -...

  • Page 39: Technical Data

    Battery runtime, min, (free run) with SavE activated, with one Husqvarna 5.2 Ah battery (Bli200). Battery runtime, min, (free run) with standard mode acti- vated, with one Husqvarna 5.2 Ah battery (Bli200). Noise emissions Sound power level, measured dB (A)

  • Page 40: Registered Trademarks

    50–60 QC500 100–240 50–60 10.2 Registered trademarks ® Bluetooth word mark and logos are registered Bluetooth SIG, inc. and any use of trademarks owned by such marks by Husqvarna is under license. 40 - Technical data 1410 - 001 -...
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