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Continuous operation: Operator seated and facing
toward excavator end
For 30 seconds operation: Used for operating the
excavator end while operator facing loader end and
also for connecting the accumulator pressure line to
the servo system to lower the excavator end when
engine or hydraulic system fails.
Auto Engine OFF switch
If the auto engine OFF switch is in OFF condition and
operator is not seated continuously for 30 seconds,
then the engine will automatically stops through the
control unit.
To deactivate the engine being switch OFF
automatically when operator is not on the seat,
simply press the switch to ON position to deactivate
the auto engine OFF system.
Operator Seat Assembly Installed with Two
Switch
Press switch- Load sensing: Gives signal to the
control unit when operator is seated or not.
Proximate switch- Position switch: Gives signal to the
control unit when operator seat facing the excavator
end.
Accumulator in Servo System
All the servo machines are installed with the
accumulator. It stores the energy for actuating servo
spool when the engine or hydraulic system failed. To
actuate the servo system in above said condition,
• Switch Ignition ON
• Press servo switch
• Select the correct servo lever to lower the
excavator end
• Servo system will operate till pressure is
available in the accumulator
Transmission
Standard 3DX transmission is being used in all the
variants and the maintenance service schedules
remains same.
Axle
Same type of axle being used in existing all variants.
Table 6.
3DX Xtra / Su-
per / 4DX
40km/h 2200 rpm /
Standard tyres /
4th Forward
Machine maintenance Schedule
Free service schedule remain same as existing
variants
AC filter- Check and clean if chocked during the
machine visits.
Part List
Recommended parts for the servo and AC are listed
in the table.
Table 7.
Item Part Number Description Qty.
AA 331/31000 Vent air 2
AB 334/Y4991 Linear 2
AC 335/C5739 Bush 2
AD 701/58843 Rocker switch 1
AE 334/Y8649 Actuator switch 1
AF 334/Y4860 Relay delayed 1
AG 334/Y4861 Relay intelligent 1
AH 334/Y5526 Hose AC 1
AJ 334/Y5524 Hose AC 1
AK 334/Y8619 Hose AC 1
AL 334/Y5527 Hose AC 1
Tools for AC: Pressure check gauge (Standard tool).
Refer to the Service manual.
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