To Start The Engine If The Spark Plug Is Wet; To Adjust The Play Of The Throttle Cable; To Clean The Cooling System; To Adjust The Idle Speed - Husqvarna 531RB Manual De Usuario

Maintenance
Examine the starter and the starter rope for damages.
Examine the vibration damping units for damages and cracks.
Examine the spark plug, see
Clean the cooling system.
Make sure that the bevel gear is filled to ¾ with grease.
Clean the external surface of the carburetor and the area around it.
Examine the clutch, clutch springs and the clutch drum for wear. Replace if it is
necessary.
Replace the spark plug.
Lubricate the drive shaft.
To start the engine if the spark plug is
wet
1. Push the choke lever up and push the throttle lever
near the maximum position.
2. Pull the starter rope again and again.
3. If step 1 and 2 does not help, remove the spark plug
and dry the electrode.

To adjust the play of the throttle cable

1. Stop the product.
2. Push the throttle lever to the lowest speed position.
3. Loosen the locknut. (Fig. 63)
4. Turn the cable adjuster (A) to adjust the play.
a) Turn the cable adjuster clockwise to increase the
play.
b) Turn the cable adjuster counterclockwise to
decrease the play.
5. Make sure that the play of the throttle cable is 1-2
mm.
6. Tighten the locknut.

To clean the cooling system

CAUTION: A dirty or blocked cooling system
can make the product too hot, which can
cause damage to the product.
The cooling system includes:
• The cooling fins on the cylinder (A).
• The air intake (B).
(Fig. 64)
• Make sure that the cooling system is not dirty or
blocked.
1
At an interval of 6 months.
907 - 003 - 23.04.2019
To examine the spark plug on page 23 .
1
• Clean the cooling system with a brush weekly or
more frequently if it is necessary.

To adjust the idle speed

The idle speed is adjusted at the factory before the
product is supplied. An adjustment of the idle speed can
become necessary because of changes in the operation
conditions, for example, in the air.
WARNING: If the cutting attachment does
not stop when you adjust the idle speed,
speak to your servicing dealer. Do not use
the product until it is correctly adjusted or
repaired.
• Make sure that the throttle wire is parallel with the
flexible shaft. If the throttle wire is twisted, make the
throttle wire straight.
• If the shaft is bent, the play of the wire is changed.
Make the shaft straight and put the product in the
position you usually operate it before you adjust the
idle speed.
• The idle speed is correct when the engine operates
smoothly in all positions. The correct idle speed is
set when the product does not stop and the cutting
equipment does not rotate.
1. Start the engine and operate the product at half
speed for >2 minutes until the engine becomes
warm.
2. Turn the idle adjustment screw clockwise until the
cutting attachment starts to rotate. (Fig. 65)
3. Turn the idle adjustment screw counterclockwise
until the cutting attachment stops.
Technical data on page 24 for the
Note: Refer to
recommended idle speed.
Daily Weekly Monthly
X
X
X
X
X
X
X
X
X
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