To Repair A Damaged Thread - Husqvarna 555 Workshop Manual

11. Disconnect the thermostat wires. Disconnect the
generator wires. Remove the heating elements.
12. Install in the opposite sequence.

7.22 To repair a damaged thread

A damaged thread can be repaired with a thread insert.
Note: For aluminum threads, use helicoil and metric
screws. Refer to the manufacturer's manual for more
information.
1. Use the applicable drill bit to make a new hole that
removes the damaged threads.
Note:
If you have a MT6 screw, use a 7.1 mm diameter
drill bit.
If you have a MT4 screw, use a 5.1 mm diameter
drill bit.
If you have a PL5 screw, use a 6.1 mm diameter drill
bit.
2. Attach the thread insert with the sharp part of the
thread insert first.
PL
5
3. Attach the thread insert with an applicable screw
and wrench.
1540 - 001 -
MT
4 & 6
Repair instructions - 59