Husqvarna 529606801 User manual

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Instructions for installing new battery conversion kit: 529606801
Husqvarna is no longer supplying new batteries for the Automower 320, 330X and 420. Instead, they
supply a conversion kit that allows these machines to be equipped with a new generation battery (as
used in the Automower 520/550 from year of construction 2020). Disassembling and reassembling
the Automower is entirely at your own risk and any form of warranty will be void (however, as
Husqvarna no longer supplies the old batteries, there is no other choice). Below is a step-by-step
explanation of how to insert the new battery. If you want to convert the Automower 330X you need
2 sets because this machine uses 2 batteries. The second battery holder can be kept as a spare or
thrown away.
Step 1: disassemble the cover
The hood is mounted on the chassis with four click closures. See Figure 1. The charging cable
attached to the hood charging strip must be disconnected to completely remove the hood from the
chassis.
Follow the steps below step by step.
1. Set the main switch to position 0 (off).
2. Clean the area around the grommet
for the charging cable at the very front
under the mower.
3. Pull the rubber grommet on the
charging cable and carefully
disconnect the plug.
4. Detach the cover from the chassis by
lifting the cover corner by corner
while holding the chassis in place.
Figure 1
Step 2: disassemble the chassis
The chassis consists of an upper and a lower part. They are attached to each other with 14 screws.
The 14 screws are indicated by arrows in Figure 2.
1. Loosen all 14 screws (torx 20). See Figure 2.
2. Remove the warranty seal at the separation point between the halves of the chassis. Note
that when it is removed, Husqvarna no longer gives any warranty on the Automower.
3. Carefully lift the rear edge of the top part of the chassis.
4. Disconnect the HMI cable from the main print. This is indicated by an arrow in Figure 3.
5. Now remove the top part of the chassis.

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Figure 2 Figure 3
Step 3: disassemble / assemble the battery
See Figure 4 for steps 1 to 4.
1. Carefully disconnect the battery plug from the main print; Arrow 1.
2. Disconnect the four cable clamps with cable harness from the battery mount. The cable
clamps are omitted; Arrows 2 to 5.
3. Loosen the five screws (torx 20) that hold the battery cover in place; Arrows 6 to 10.
4. Now remove the battery together with the battery holder.
Figure 4
See Figure 5 for steps 5 through 9.
5. Place the new bottom half of the battery holder with the arrows pointing forward; Arrow 1.
Make sure that no cables are trapped underneath.
6. Place the new battery in the battery holder.
7. Fit the top half of the new battery holder and screw it tight with four screws (torx 20);
Arrows 2 to 5.

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8. Place the disconnected wire harness from previous step 2 in the appropriate new wire
holders; Arrows 6 to 9.
9. Connect the newly delivered cable (591203601) to the battery and main print; Arrows 10 and
11.
Figure 5
Step 4: Place the sealing strip (article number: 574874705, not included)
If the Automower chassis has been loose, a new sealing strip must always be fitted. If this is not
done, there is a greater risk of moisture damage.
1. Remove the old sealing strip from the bottom part of the chassis.
2. Check that there is no sand, grass or other debris in the trench.
3. Align the first end of the sealing strip with the mark on the chassis. Indicated by the arrow in
Figure 6.
4. Continue to lay the sealing strip clockwise around the chassis half.
5. Place the second end of the sealing strip over the first end and then route it out the duct.
Attach the sealing strip to the bottom using the holder. Indicated by the arrow in Figure 7.
6. Reassemble the mower in the reverse order of disassembly.
Figure 6 Figure 7