Husqvarna 543RB, Operator'S Manual

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To attach and remove the guard extension
The guard extension is used on the combination guard.
Attach the guard extension when you use a trimmer
head or plastic blades. Remove the extension guard
when you use a grass blade.
1. Put the guide on the guard extension into the slot on
the combination guard. Click the 4 locking hooks into
position. (Fig. 40)
2. Release the locking hooks with the spark plug
wrench to remove the guard extension. (Fig. 41)
To attach the grass blade and the grass
blade guard/combination guard
(Fig. 42)
1. Put the blade guard/combination guard (A) onto the
shaft and tighten the bolt to attach it. (Fig. 43)
2. Make sure that the guard extension is removed.
3. Turn the output shaft to align one of the holes in the
drive disc (B) with the related hole in the gear
housing.
4. Put the locking pin (C) in the hole to lock the shaft.
5. Put the grass blade (D), the support cup (E) and the
support flange (F) on the output shaft. (Fig. 44)
6. Make sure that the drive disc and support flange
engages correctly in the centre hole of the grass
blade. (Fig. 45)
7. Attach the nut (G).
8. Tighten the nut with the socket wrench. Hold the
shaft of the socket wrench near the blade guard.
Tighten in the opposite direction to how the cutting
attachment rotates. Tighten it to a torque of 35-50
Nm. (Fig. 46)
To attach the trimmer head
1. Put the holder (A) and the holder (B) on the output
shaft.
2. Turn the output shaft to align one of the holes in the
holder (B) with the related hole in the gear housing.
3. Put the locking pin in the hole to lock the shaft. (Fig.
47)
Note: Turn the trimmer head counterclockwise when
installing.
To install the transport guard
1. Install the blade in the transport guard (A).
2. Put the two fasteners (B) into the slots (C) to attach
the transport guard. (Fig. 48)
To install the 2-teeth blade in the
guard
1. Install the blade in the transport guard. (Fig. 49)
To assemble the shoulder harness
1. Put the ring of the shoulder harness strap through
the hook (A) and attach it with the bolt.
2. Attach the hook (B) of the shoulder strap to the ring
(C) on the frame. (Fig. 50)
To adjust the shoulder harness
1. Stop the engine.
2. Put on the harness.
3. Adjust the shoulder strap to make the product weigh
equally on your shoulders.
Operation
Introduction
WARNING: Before you operate the product,
you must read and understand the safety
chapter.
Before you operate the product
• Examine the work area to make sure that you know
the type of terrain, the slope of the ground and if
there are obstacles such as stones, branches and
ditches.
• Do an overhaul inspection of the product.
• Do the safety inspections, maintenance and
servicing that are given in this manual.
• Make sure that all covers, guards, handles and the
cutting equipment are correctly attached and not
damaged.
• Make sure that there are no cracks at the bottom of
the grass blade teeth or by the center hole of the
blade. Replace the blade if it is damaged.
(Fig. 51)
• Examine the support flange for cracks. Replace the
support flange if it is damaged.
(Fig. 52)
• Make sure that the locknut can not be removed by
hand. If you can remove it by hand, it does not lock
the cutting attachment sufficiently and you must
replace it.
(Fig. 53)
• Examine the blade guard for damages or cracks.
Replace the blade guard if it has been hit or if it has
cracks.
(Fig. 54)
• Examine the trimmer head and cutting attachment
guard for damages or cracks. Replace the trimmer
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