Husqvarna P524 - Presentation; Machine Overview; Throttle Control; Choke Control

English – 11
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3.2 Screw fasteners
Metric threads are used on the machine.
Some bolt fasteners are locked with screws treated
with Eslok
®
Nylon 180°. The screw threads have a
red coating. These screws can be retted three
times before having to be replaced.
Always torque tighten screw unions to the specied
torque table unless specied otherwise in the text.
Spanner
Size
Allen Key Thread Tightening
torques
8 mm 4 mm M5 52 ft/lb (6 Nm)
10 mm 5 mm M6 52 ft/lb (10 Nm)
- - 3 mm M6 52 ft/lb (10 Nm)
13 mm 6 mm M8 52 ft/lb (24 Nm)
- - 4 mm M8 18 - 20 Nm
17 mm 8 mm M10 52 ft/lb (47 Nm)
17 mm - - M10 12.9 52 ft/lb (70 Nm)
18-19 mm 10 mm M12 52 ft/lb (81 Nm)
24 mm - - M16 80 ft/lb (110 Nm)
30 mm - - M20 52 ft/lb (200 Nm)
32 mm - - - - Hydraulic
couplings, see
separate chapter.
Certain unions are screwed into the goods with a
through screw and a locknut. The thread in the
goods is intended to take the effective torque and
the locknut is to secure the union during use.
Therefore, the main part of the torque - screw in the
goods - should always be tightened rst and then
secured with the locknut, which is tightened with
less torque. If the locknut is tightened with too high a
torque, the screw in the goods thread will be
unstressed and the bolt fastening will come loose
during use.
Hydraulic Couplings
When assembling hydraulic hoses and pipes, rst
tighten their cap nuts by hand to stop. Then tighten a
further 1½ ats of the wrench grip. This corresponds
to an approximate 90° turn.
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1. Screw
2. Goods thread
3. Locknut
1. Starting point
2. Torqued position = 1.5 ats = 90° angle
Service tools