13 – 14 Repair Manual RRE140/160/180/200/250 © BT
Electrical system 5000
Calibrations
T-code Valid from serial number Date Publication No.
815, 816 6051502 2008-08-21 261828-040
13.4 Calibrations
13.4.1 Valve calibration
The valve mode is used to calibrate the valves. Valves that can be cali-
brated are:
Only the opening point (S) on the valves needs to be calibrated.
"E" stands for the closing point of the valve; this does not need calibrat-
ing. To perform calibration, select the desired valve in the table above.
Free lift and main lift valve calibration
1. Select valve 1.
2. Start by entering a value in the "S" box: 100 mA.
3. Lift the forks using the lever as usual. The forks should now slowly
move upwards. If the forks do not move, increase the value in the
"S" box, by 25 mA at a time, until the forks start to move.
4. At approximately 0.5–1 second intervals, press the minus button
until the forks halt.
5. Calibration 1 (free lift) is now complete. Repeat on valve 3 (main
lift).
Free lowering and main lowering valve calibration
1. Select valve 2.
2. This calibration should be performed with a load (at least 500 kg)
on the forks.
3. Start by entering a value in the "S" box: 100 mA.
4. Lower the forks using the lever as usual. The forks should now
slowly move downwards. If the forks do not move, increase the val
-
ue in the "S" box, by 25 mA at a time, until the forks start to move.
5. At approximately 0.5–1 second intervals, press the minus button
until the forks have very low constant speed (obtained by the pilot
valve).
6. Calibration 2 (free lowering) is now complete. Repeat on valve 4
(main lowering).
1 Free lift
2 Free lowering
3 Main lift
4 Main lowering
5 Reach movement, out
6 Reach movement, in
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