Hardi COMMANDER 4500, Instruction Book

Page: 118 / 170

6 - Maintenance
116
Lubrication After Assembly
After disassembling the pump (diaphragm replacement, etc.), the pump
MUST be lubricated with 7 oz. (200 g) grease into each lubrication point.
˜
ATTENTION! In order to avoid excessive wear, it is important to
use a recommended lubricant (i.e. Hardi® part no. 28164600). See
“Recommended Lubricants” on page 95.
Speed Transducer for Pump
The speed transducer, measuring revolutions per minute (rpm), is
located at the inner side of the PTO shield. This sensor is an inductive
type, which requires metallic protrusions to pass by it to trigger a signal.
If the sensor is replaced, it must installed accurately to function.
Adjustment
1.
Adjust the air gap (A) between sensor tip and pump part by
turning the nuts on the support bracket for the sensor.
The air gap (A) must be set to 1 mm (+0.3/-0.0 mm).
Use a feeler gauge or similar tool to verify.
2.
Verify transducer function on the controller:
•
HC 6500 / ISOBUS VT:
Monitor the menu [4.5.4.9.6 PTO pump frequency].
Level Indicator Adjustment
The level indicator reading should be checked regularly. When the tank
is empty, the float should lie on the stop pin (D) of the rod, and the O-
ring on the indicator should be positioned at the top position line (A).
˜
ATTENTION! The wire guide wheels should be directed so they
follow the direction of the wire.
If any deviation is found, do the following:
1.
Pull out the plug (B).
2.
Loosen screws (C).
3.
Adjust the length of the wire, until it reads correctly.
4.
Push the plug (B) back into place.
÷
NOTE! To obtain the best accuracy, the adjustment shall be done
with the sprayer attached to the tractor normally used.