Repair instructions
Repairing damaged threads
Guide bar bolts – replacement
A repair kit, 503 27 33-01, is available for repairing
damaged threads.
1
Drain the oil tank.
First drill out the hole using:
2
6.1
mm drill bit for magnesium crankcase
Knock through the old guide bar bolt so that it falls
into the oil tank.
Then screw in the thread insert using a suitable
bolt and spanner.
3
Remove the bolt from the oil tank.
4
Thread insert
Fasten a steel wire to the thread of the new bolt,
feed the steel wire into the oil tank and out through
the bolt hole in the crankcase.
A damaged thread can be repaired using a thread
insert. The slotted part of the thread insert is
screwed in first, as this is the cutting part.
5
Pull the steel wire until the bolt comes out through
its hole.
To repair a thread that was originally designed for
a PL5 screw: first drill out with a 6.1 mm diameter
drill bit, then screw in the thread insert using a suit-
able screw and spanner.
6
Pull through the bolt with its nut. Place a spacer
between the nut and crankcase.
To repair a thread that was originally designed for
a MT6 screw: first drill out with a 7.1 mm diameter
drill bit, then screw in the thread insert using a suit-
able screw and spanner.
7
Check that the square shoulder of the bolt is cor-
rectly seated in the recess in the crankcase.
This type of thread insert is best suited for use
in plastic and magnesium, but not for repairing
threads in aluminium. In that case use a helicoil
insert with metric screw.
8
Refill with chain oil.
New part no.
Description
PL5
MT6
503
503
27 39-01
27 40-01
English – 50
| Categories | Chainsaw Manuals, Husqvarna Chainsaw Manuals |
|---|---|
| Tags | Husqvarna 340, Husqvarna 345, Husqvarna 346XP, Husqvarna 350, Husqvarna 351, Husqvarna 353 |
| Model Year | 2003, 2004, 2005, 2006 |
| Download File |
|
| Document Type | Operator's Manual |
| Language | English |
| Product Brand | Husqvarna, Chainsaw |
| Document File Type | |
| Publisher | husqvarna.com |
| Wikipedia's Page | Husqvarna |
| Copyright | Attribution Non-commercial |
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