JCB 714 Super-Boss Conversion
SB002
Operator’s Manual
Issue 1, R2
Last Updated 5 April 2017
Page 17 of 43
Emergency Off-Tracking
EMERGENCY ON-TRACKING IS NOT COVERED IN THIS MANUAL AS THERE IS NO OCCASION WHEN
THIS PROCEDURE WOULD BE CONDONED.
Emergency Off-Tracking however may be necessary at in an emergency at the request of the Engineering
Supervisor / Machine Controller. It must be stressed that this is an
Emergency Procedure Only
and should
NOT
be used for normal operation. If you are asked to Off-Track using this method (at an unprepared location)
without suitable justification you should report to your On- call Manager and ask his advice before attempting
this manoeuvre. If there is real cause to use this method there are still certain procedures that must be
followed:
•
The Off-Tracking area must be inspected for its suitability as normal.
•
An area where there are no obstructions should be selected. For example, there should be no
conductor rail present, no high ballast shoulders and no obvious hazards.
•
Emergency Off-Tracking must not be carried out on a cant.
In the event of a real emergency the procedure for Emergency Off-Tracking is as follows:
•
Ensure the machine is configured for travel (module fully stowed).
•
Approach the Off-Tracking area at a safe speed.
•
Sound the horn to alert personnel at the Off-Tracking area as you approach.
•
Raise the rear and front rail gear fully.
•
Deselect rail mode and steering lock.
•
Slowly drive clear of the rail
•
Move the machine at least 3 metres from the closest rail
When carrying out this operation always follow any hand signals given by a ‘banksman’ or machine controller
and carry out all movements smoothly and at a safe speed.
Ensure you are clear of all obstructions and that ground conditions are suitable.
Ensure the machine is configured to travel to avoid causing instability or a possible tip over situation occurring.
THIS MANOEUVRE IS DANGEROUS AND MUST ONLY BE CARRIED OUT IN A REAL EMERGENCY.
When Off-Tracking, care must be taken when the machine manoeuvres off the railhead. Make certain that the
rail bogies are raised up to the maximum height for travel.
‘Grounding out’ the machine, whilst the machine is travelling off rail may result in severe damage to the
machine and/or infrastructure.