Husqvarna 340 User Manual download pdf (Page 19)

18 – English

Hand grip heater on model 346XPG,

351G, 353G – removal

No heating or heating only in front hand grip

• Front hand grip – troubleshooting

Remove the three bolts that secure the cover over

the front hand grip. Disconnect the leads from the

switch and generator and measure the resistance of

the hand grip heater, which should be 3–4 ohm.

Replace the front hand grip if the resistance is higher.

Reconnect the leads and refit the cover.

Push the switch back into place and reconnect the

leads.

Bolt the cover back onto the hand grip.

• Generator – troubleshooting

Remove the cylinder cover and cover from the

front hand grip. Disconnect the black lead from the

generator and connect a multimeter between it and

a clean area on the cylinder. The multimeter should

show a resistance of 0.9–1.3 ohm. If the reading is

higher or lower, replace the generator, see “Re-

placing the generator”.

Reconnect the lead and refit the hand grip cover

and cylinder cover.

• Switch – troubleshooting

Carefully free the switch and frame from the front

hand grip using a screwdriver.

Disconnect the leads from the switch and connect

a multimeter to it. The meter should read over

1000 ohm when the switch is in the “0” position.

The meter should read no higher than 0.1 ohm with

the switch in the “1” position. Replace the meter if

the readings are outside these limits.

Rear hand grip heater not working

• Rear hand grip heater – troubleshooting

Remove the cylinder cover, air filter and cover from

the rear hand grip.

Disconnect the red lead from the heater and

connect a multimeter between it and the black

earth lead that is bolted to the bottom of the

carburettor on the clutch side of the saw. The

meter should read 0.7–1.2 ohm. If the reading is

higher replace the heater element.

Remove the air filter, throttle pushrod, rubber

diaphragm and carburettor, see “Carburettor –

removal”.

Remove the bolt from the plate at the base of the

carburettor to release the lead for the heater

element.

Repair instructions

Unscrew the three bolts from the front hand grip

and remove the cover to reveal the leads. Discon-

nect the red lead.

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Husqvarna 340 User Manual Page 19

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