Connection; Support Leg; Tyres; Transmission Shaft Installation - Hardi 3500 EXPLORER Operator's Manual

3500 / 4000 EXPLORER

Connection

Connect the sprayer to the tractor and adjust the draw-
bar tow height so that the trailer frame is level.
Use spacers to pack the hitch and thus prevent exces-
sive vertical shock movement.
WARNING! Drawbar bolts must be re-tightened
every 10 hrs until torque is stabilised at 365 Nm,
then every 50 hrs.
WARNING! The drawbar ball is designed for a 38
mm pin, which should be secured in the tractor
drawbar to ensure the sprayer cannot be acciden-
tally disconnected - use bushes to reduce slack.
WARNING! Your tractor's braking efficiency will
decrease with the sprayer connected, particularly
when the tank is full.

Support leg

Remove the drawbar support leg and/or turn 90 ° to the
storage position .
WARNING! The support leg is not designed to
support the trailer for extended periods if the
sprayer is full of water.
Fig 4

Tyres

Equal pressure in all tyres is essential. Pressure should
be kept as low as practical, i.e. baggy when the tank is full.
For recommended pressure see
NOTE! Units fitted with computers must always
maintain the same tyre pressure as when calibrated.

Transmission shaft installation

Initial installation of the transmission shaft may require
shortening of the shaft.
1 Attach the sprayer to the tractor and set the sprayer
at a height allowing the shortest length of the trans-
mission shaft with the tractor set at a turning angle.
2 Stop the engine and remove the ignition key.
3 If the transmission shaft must be shortened, pull the
shaft apart. Fit the separated shaft parts to the tractor
and sprayer pump and measure distance it is neces-
sary to shorten the shaft. Mark the protection guards.
Fig 5
X = Min 20mm
6
Tyre pressures (P 25).
NOTE! The shaft must always have a minimum overlap
1
of / of the length.
3
Fig 6
Fig 7
4 Shorten the two seperated parts equally. Use a saw
and file the profiles afterwards to remove burrs.
5 Grease the profiles, and assemble the male and
female parts again.
6 Grease the tractor and sprayer pump PTO shafts.
7 Fit the transmission shaft to the tractor and sprayer
pump PTO shafts:
Push the yoke pin and slide the yoke onto the PTO
shaft. Make sure that the lock engages by pushing
and pulling forwards and backwards or if applicable
by tightening the allen key. Fit the chains to prevent
the protection guards from rotating with the shaft.
NOTE! Please fit the female part marked with a
tractor symbol towards the tractor.
Fig 8
NOTE! To ensure long life of the transmission
shaft try to avoid working angles greater than 35°.
35°
Fig 9

Connecting hydraulics

Please refer to the boom manual supplied with your
sprayer documentation regarding connecting hydraulics
and boom operation, adjustment and maintenance.
1/3 1/3 1/3
MIN 20mm
Tractor end - female