Special Tools; Hydraulic Equipment; Tool For Measuring Wheel Speed; Laser Tachometer - Husqvarna P 520D Workshop Manual

The machine is designed so that the number of
special tools is kept to a minimum. The following
special tools are used when working on the ride-on
mower. Special tools for engine and transmission
can be found in the respective workshop manual.
• Counterhold for torquing solenoid clutch.
• Spring hook for changing belt on cutting deck.
• Tool for checking wheel speed.

Hydraulic Equipment

Testing nipple kit
1 pc. manometer 0-2.5 MPa (0-25 bar).
1 pc. manometer 0-25 MPa (0-250 bar).
(Alternatively 1 pc. combination manometer with
above measuring range.)
The manometers should have test couplings to fit
quick coupling with M16x2 thread and 1 meter
manometer hose.

Tool for Measuring Wheel Speed

This tool is used together with the laser meter in
order to rotate the wheel pair on one side while the
wheel pair on the other side is resting on the ground.
4
– English

Special Tools

Laser Tachometer

IMPORTANT!
To avoid incorrect readings, the laser meter
must be held at right angles to the rim at a
distance of maximum 10 cm.
Safety During Use:
• Class 1 laser product.
• Take care whenever the laser beam is on. Do
not look straight into the beam. Do not aim the
beam towards anyone else's eyes, neither
people nor animals.
• Do not aim the laser beam towards polished
surfaces where the beam can be reflected into
someone's eyes.
• Do not aim the laser beam at explosive gases.

Remember When Measuring:

• The reflecting surface must be smaller than the
non-reflecting surface.
• If the object to be measured is shiny, cover the
measured surface with black tape or paint it
black before the reflective tape is affixed.
• Clean the surface before affixing the tape.
• When measuring at low speed, a more precise
reading can be obtained by fastening more
pieces of tape evenly distributed around the
object being measured. Then divide the read
value with the number of tape pieces to obtain
the real rpm.
RPM
TOT
MEM
DIGITAL TACHOMETER