Husqvarna Automower 550 Workshop Manual
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Husqvarna Automower 550 Workshop Manual

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Workshop manual
Husqvarna Automower
550 EPOS, 550H EPOS
®

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Summary of Contents for Husqvarna Automower 550

  • Page 1 Workshop manual Husqvarna Automower 550 EPOS, 550H EPOS ®...

  • Page 2: Table Of Contents

    Contents 1 Introduction 6 Repair instructions 1.1 Document description..........3 6.1 Product overview..........12 1.2 Servicing tools............3 6.2 To mount screws..........13 1.3 Technical data............3 6.3 To remove and install the body......13 6.4 To remove and install the upper chassis .....14 6.5 To remove and install the center console....

  • Page 3: Introduction

    1 Introduction 1.1 Document description The Workshop manual is intended for dealers and service personnel, and is a supplement to the Operator’s Manual. The following system is used in Workshop manual to make it easier to use: italics is a text that is shown in the •...

  • Page 4: Safety

    2 Safety 2.1 Safety definitions 2.3.3 Battery safety Warnings, cautions and notes are used to point out WARNING: Lithium-ion batteries can explode or specially important parts of the manual. cause fire if disassembled, short-circuited, exposed to water, fire, or high temperatures. WARNING: Used if there is a risk of injury or Handle carefully, do not dismantle, open the death for the operator or bystanders if the...

  • Page 5: System Description

    3 System description The EPOS system contains a robotic lawn mower, a mower. The work area for the product is made virtually ® charging station and a reference station. The robotic in Automower Connect app by operating the product lawn mower and the reference station receive satellite and adding waypoints to make a map in the app.

  • Page 6: Product And Installation

    4 Product and installation 4.1 Main components for installation • N signal, is given by a loop in the charging station baseplate to guide the product correctly into the The robotic system involves these main components: charging station. • Product •...

  • Page 7: Reference Station

    Automower Connect app, ™ motors. The main switch, USB contact, rear loop Husqvarna Fleet Services and also to download sensors and tilt sensors are located on the motor control firmware through FOTA. Maps and data are uploaded to circuit board.
  • Page 8 same position in the same area so that the maps are not ® affected. Enter the Automower Connect app and remove the old reference station and pair with the new one. If the reference station is moved from its original position all maps must to be reinstalled.

  • Page 9: Autocheck Service Tool

    5.3 To connect the product with USB service Autocheck 3 is a PC tool developed for the service of the robotic lawn mowers from Husqvarna Group. It is a cable tool for troubleshooting as well as a database of sold 1.

  • Page 10: How To Use Autocheck 3

    ® Reset : Contains reset functions, for example Reset • Make sure that Bluetooth is enabled on your tablet/ • charge cycles counter and Reset period time . Reset device. charge cycles counter should be done when the • Switch the product OFF and ON and try again. Refer Reset period time should product has a new battery.

  • Page 11: Demo Mode

    There are 3 options when programming a new application circuit board: • Select product from the Log book Select product from the Log book and the serial number and operating data is transferred automatically to the new application circuit board. This requires that the product previously has been connected to Autocheck.

  • Page 12: Repair Instructions

    6 Repair instructions 6.1.2 The center console This chapter describes how to repair and change spare parts. Refer to the Illustrated parts list (IPL) at the The center console is structured mechanically around manufacturer's support website. the modules that follow: 6.1 Product overview 6.1.1 The body system The body system is structured mechanically around the...

  • Page 13: To Mount Screws

    6.1.4 The lower chassis Note: Always use the recommended torque to mount the Screw fasteners on page 35 . screws. Refer to The lower chassis is structured mechanically around the modules that follow: 6.3 To remove and install the body CAUTION: Pull the connector.

  • Page 14: To Remove And Install The Upper Chassis

    6. The body is attached to the chassis at 4 positions. At 3. Remove the warranty seal at the point of separation each position, hold the chassis with one hand and between the chassis halves on the right side. remove the front cover with a fast and short pull. 4.

  • Page 15: To Remove And Install The Center Console

    6.5 To remove and install the center console 9. When you connect the cables make sure to put the cables in the cable holders. To put the cables into To remove and install 1. Remove the body. Refer to position in the upper chassis: the body on page 13 .

  • Page 16: To Replace The Top Cover

    6.6 To replace the top cover 6. Install in opposite sequence. To remove and install 1. Remove the body. Refer to the body on page 13 . 6.7 To replace the rear bumper To remove and install 1. Remove the body. Refer to 2.

  • Page 17: To Replace The Headlights

    6.9 To replace the headlights Note: Make sure that the grommets seal correctly against moisture. To remove and install 1. Remove the body. Refer to the body on page 13 . To replace the top 2. Remove the top cover. Refer to 6.11 To replace the main switch cover on page 16 .

  • Page 18: To Replace The Front Joysticks

    5. Remove the stud (13 socket wrench). 5. Clean fully around the mounting surfaces. 6. Attach the new filter. Make sure that the adhesive surfaces attach correctly to the chassis. 7. Install in opposite sequence. 6. Remove the washer and the bellows. 6.13 To replace the front joysticks 7.

  • Page 19: To Replace The Rear Joysticks

    6.14 To replace the rear joysticks 4. Remove the screw (A) for the LED housing assembly. To remove and install 1. Remove the body. Refer to the body on page 13 . 2. Remove the 4 screws that hold the rear joysticks to the upper chassis.

  • Page 20: The Circuit Boards And Sensors

    6.16 The circuit boards and sensors CAUTION: Always protect the product from electrostatic discharge, ESD, before you start to These are the circuits boards in the product: work on electrical components. 6.16.1 To replace the motor control circuit board To remove and install 1.
  • Page 21 5. Remove the 2 screws and the 2 holders that hold 4. Disconnect all cables from the application circuit the motor control circuit board to the lower chassis. board. 6. Pull up the motor control circuit board and remove it. 5.
  • Page 22 3. Disconnect the cable from the RTK module. 6.16.4 To replace the communication circuit board ® The communication circuit board contains Automower Connect and the GPS module. To remove and install 1. Remove the body. Refer to the body on page 13 . To remove and 2.
  • Page 23 3. Push the clips to the ultrasonic sensors and lift them separately. The front sensor circuit board must be replaced as a unit. To remove and install 1. Remove the body. Refer to the body on page 13 . To remove and 2.
  • Page 24 3. Disconnect the cable from the lift sensor circuit 4. Push with a flat screwdriver on the clip and pull out board. the holder. 4. Push the clip and remove the lift sensor circuit board. 5. Push the clips with a flat screwdriver to remove the collision circuit board.

  • Page 25: The Battery System

    4. Push the clips with a flat screwdriver and pull the 3. Disconnect the battery cables from the motor control rear collision sensor circuit board down to remove it. circuit board. 5. Install in opposite sequence. 6.17 The battery system WARNING: Use only original batteries recommended by the manufacturer.

  • Page 26: The Cutting System

    4. Remove the charging plates and the charging plates cable. 5. Install in opposite sequence. 7. Remove the battery from the battery holder. 8. Install a new original Husqvarna battery/batteries in 6.18 The cutting system the battery holder. 6.18.1 To replace the blade motor 9.
  • Page 27 5. Remove the 3 screws that holds the skid plate. 3. Disconnect the cable for the cutting height adjustment motor from the cutting height circuit board. 4. Remove the screw and holder for the cutting height circuit board. 6. Remove the screw (hex key 4) that holds the bearing.

  • Page 28: The Wheel Motors

    6.19 The wheel motors 7. Remove the wheel outside and the wheel tire. The 2 wheel motors are brushless DC motors. The motors are supplied as a unit together with gearbox, wheel motor end cover, gasket, hub and cable. Right and left wheel motors are identical and have the same article number as spare parts.
  • Page 29 10. Remove the ball bearing, the sealing and the shield. 3. Remove the wheel. 4. Remove the inside cover with a flat screwdriver. 11. Install in opposite sequence. Note: Replace the lock washer. A used lock washer will not give satisfactory lock after it is removed from the axle.

  • Page 30: Charging Station

    6. Remove the wheel motor. 6.20.1 To remove and install the charging station and the charging station cap 7. Install the new wheel motor. This section gives information on how to remove all 8. Install in opposite sequence. parts of charging tower. For service or to replace spare parts all steps may not be needed.

  • Page 31: To Mount Screws In Plastic

    8. Disconnect the cables to the cable plate. 6. Install in opposite sequence. 6.20.3 To replace the contact plates in the charging station 1. Remove the charging tower and charging station To remove and install the charging cap. Refer to station and the charging station cap on page 30 .

  • Page 32: To Mount Thread Plugs

    avoid tension in the plastic, causing malfunction To mount a thread plug into a worn plastic thread: or not attaining a satisfactory seal. 1. Make the hole bigger with a 6.6 mm drill to a depth corresponding with the plug. To ensure the threads in plastic parts are not damaged: 1.
  • Page 33 CAUTION: A 5 mm sealing strip must be used. Sealing may be deficient if the wrong sealing strip is used. 1. Start by laying one end of the sealing strip in line with the marking on the chassis. 2. Continue laying the sealing strip clockwise around the lower chassis.

  • Page 34: Service

    7 Service 7.1 Service schedule The table below contains a checklist of points and actions to be taken when servicing the product. Action Explanation Preparations Firmware on page 10 . Firmware update Refer to If firmware is available in Autocheck, update the product with the new firmware.

  • Page 35: Screw Fasteners

    Action Explanation Skid plate Make sure that the skid plate can rotate freely and that the ball bearing does not make a noise. Examine the skid plate and skid plate bearing. Replace the bearing if damaged. To replace the sealing strip on page 32 . Sealing strips Refer to Open the chassis and replace all sealing strips.
  • Page 36 Fastener Hardware Tool Tightening torque (Nm) Wheel motor to lower chassis Screw, 5 x 16 mm Torx 20 Front wheel Screw gray, 4 x14 mm Torx 20 Rear wheel Nut, M6 24 socket wrench Blade disc Screw, M4 x 8 mm Cross screwdriver Blade disc bearing Screw, M6 x 8 mm...

  • Page 37: Troubleshooting

    8 Troubleshooting 8.1 Messages The table below contains fault and information messages which can appear in the product. Note: Refer to the Operator's manual for more information about how to rectify errors. Messages Number Message Cause Action No message Indicates that no message is stor- Outside working area The product is not within the work Put the product within the virtual...
  • Page 38 Messages Number Message Cause Action No loop signal The product is at the docking Change the position of the charg- point and has no F-field. ing station. The power supply to the charging Check the wall socket connection station is not connected. and whether an earth-fault break- er has tripped.
  • Page 39 Messages Number Message Cause Action Low battery The product cannot find the The product has no accurate po- charging station. sition and cannot find the charg- ing station. There is an obstacle preventing the product to find the charging station. The battery is at the end of its life Replace the battery.
  • Page 40 Messages Number Message Cause Action Cutting system blocked Grass or another object may have Check the blade disc and remove become wrapped around the any object. blade disc. The grass is thick and long. Increase the cutting height and then gradually lower it. Increase the scheduled time for that work area or decrease the size of the complete work area.
  • Page 41 Messages Number Message Cause Action Charging current too high The battery is being charged with Fault in the power supply, or too high current. wrong type of power supply or charging station is being used. Temporary problem Communication problems with the Restart the product by switching cutting system.
  • Page 42 Messages Number Message Cause Action Battery problem Battery not connected correctly, Make sure that the battery is cor- To re- or is defective. rectly connected. Refer to place the batteries on page 25 . Wrong type of battery. Use only original batteries recom- mended by the manufacturer.
  • Page 43 Messages Number Message Cause Action Map problem There is no defined work area. Make a work area in the Auto- ® mower Connect app. Refer to Operator's manual. The charging station or the refer- Move the charging station or the ence station has been moved.
  • Page 44 Messages Number Message Cause Action Loop sensor problem One or both the loop sensors are Replace the defective loop sen- To replace the rear defective. sors. Refer to loop sensors and tilt sensor on page 23 and To replace the motor control circuit board on page 20 .

  • Page 45: Symptoms

    8.2 Symptoms The most commonly occurring symptoms are described below. All symptoms are grouped by the situation where they occur most often. 1. Mowing 4. Charging 2. Searching 3. Docking Note: Refer to the Operator's manual for more information about how to rectify errors. 8.2.1 Symptoms during mowing Symptom Cause...
  • Page 46 Symptom Cause Action The product does not react An object or dirt under the STOP button. Remove the object or clean under the when pushing the STOP but- STOP button. Faulty magnet or Hall sensor for the Replace the STOP button. Refer to replace the START/STOP button on STOP button.

  • Page 47: Led Indicator Lamp On The Charging Station

    8.2.4 Symptoms during charging Symptom Cause Action Battery test to determine the Both the mowing and charging Low battery capacity. Perform a Auto test on times are shorter than usual battery’s capacity. Refer to page 10 . The product never leaves the The parking mode is activated.

  • Page 48: Battery Test

    1. Replace the charging station circuit board, or the Note: If the product has not been in operation for more baseplate (including the N and F wires). Refer to than two months, at least two and preferably three replace the circuit board in the charging station on battery tests must be carried out.

  • Page 49: Transportation, Storage And Disposal

    9 Transportation, storage and disposal 9.1 Transportation • Keep the product with all wheels on level ground during storage, or use an original wall hanger. The supplied Li-ion batteries obey the Dangerous Goods • If you keep the charging station indoors, disconnect Legislation requirements.
  • Page 50 ORIGINAL INSTRUCTIONS We reserve the right to make changes without prior notice. Copyright © 2021 Husqvarna AB. All rights reserved. 114 13 62-26 www.husqvarna.com 2021-03-30...

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EposAutomower 550h epos

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