Hardi COMMANDER 4500, Instruction Book

Page: 69 / 170

4 - Sprayer Setup
67
Track Width, Axles and Wheels
Altering the Track Width (Adjustable Axle)
The track width of the sprayer can be infinitely adjusted from 60” to 90” as follows:
Altering Procedure
1.
Measure the current track width (center RH tire to center LH tire).
Each side must be extended or retracted half the desired
alteration.
2.
Attach the sprayer to tractor and engage tractor parking brake.
3.
Place stop wedges in front of, and behind RH wheel. Jack up LH
wheel, support and secure sprayer body.
4.
Loosen the jam nuts and bolts (A) for LH wheel axle.
5.
Extend or retract the axle. A hand cart and a rod will facilitate the
operation.
6.
Lower the LH wheel.
7.
Tighten the clamp bolts (A) to a torque of 185 Ft/lb (250 Nm) and
lock the bolts with the jam nuts.
8.
Repeat the procedure on RH wheel.
9.
Check if the distance from center tire to center of rear frame is equal at RH and LH.
10.
Re-tighten bolts and wheel bolts to specified torque after 8 hours of work.
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ATTENTION! The wider the track width, the better the stability of the sprayer. HARDI® recommends to work with
widest possible track width.
˜
ATTENTION! The track width can be altered in the range from 60” to 90” in combination of above adjustment and
turning of the rims (wheel offset).
Changing the Wheel Offset
1.
To change the wheel offset, the LH and RH wheels must be swapped in order to turn the rim dish and keep the correct
tread direction (tread up in front).
2.
Jack up the frame behind both wheels, support and secure sprayer body.
3.
Remove both LH and RH wheels and swap sides (keeping the tread direction the same). Tighten wheel bolts to
specified torque.
See “50 Hours Service - Wheel Nuts” on page 106 for proper torque and tightening sequence of wheel hubs to rims.
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WARNING! Securely support the sprayer while swapping wheels. Never attempt to swap wheels with liquid in the
tank. Always secure the rear frame when swapping wheels.