TeeJet UniPilot - Manual (Page 16)

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UniPilot
®
operation and storage Conditions
Electronic components of the UniPilot ESM are designed for rough environmental conditions like agricultural applications. However it should
always be installed in the operator's station of the vehicle.
Warning! Never use a pressure washer to clean the UniPilot ESM. If needed wipe with a moist cloth.
Warning! Always protect the UniPilot ESM from falling onto a hard surface, to prevent internal damage.
Life expectance of the UniPilot ESM can be extended by storing it under optimal conditions. Keep all mounting screws and brackets together if
the motor is not installed in a stored vehicle. Avoid locations with high humidity as well as high temperatures near generators, radiators or near
windows in direct sunlight.
trouble shooting
Description Cause Troubleshooting
UniPilot ESM does not
turn
No signals from SCM (steering unit) to UniPilot ESM Check steering system
Open wire between steering system and UniPilot ESM Check cable between steering system and UniPilot ESM
Open wire between power supply and UniPilot ESM,
UniPilot ESM is not supplied with voltage
Check power supply of UniPilot ESM
Contact wheel of
UniPilot ESM slips on
steering wheel
Spring force of collapsible mechanism of UniPilot ESM
is too low
Check distance from contact wheel and stand by position.
Once verified then adjust contact pressure as stated below.
Increase spring force of collapsible mechanism of UniPilot
ESM (see page 35 for details)
Contact wheel of UniPilot ESM is worn Replace contact wheel of UniPilot ESM (see page 36 for
details)
Contact Pressure
Should the contact wheel slip while activating the steering wheel, the contact pressure needs to be increased. Either slide the UniPilot ESM
towards the steering wheel or increase the spring preload.
To Increase / Decrease the Spring Preload:
1. Disassemble the UniPilot ESM.
2. Bring the motor to the normal operating position, so that the spring tension against the two mounting screws is at it’s lowest.
3. Loosen the two mounting screws in the assembly base with a 2.5 mm allen wrench, if necessary hold the inside nut with a 8mm open end
wrench.
4. To increase pressure move the two mounting screws with the spring ends in direction (1) To reduce pressure move the two mounting screws
with the spring ends in direction (2).
5. Once you have the desired spring pressure tighten the two mounting screws.
6. Reassemble the UniPilot ESM to its mounting bracket on the steering column.
Figure 1-18: Loosen Mounting Bracket Screws
Figure 1-19: Increase/Decrease Spring Preload