VT150
Vertical Crawler™
Document: UMDW013977.docm
Revision: A07
Created by: MDM
Date: 26 Sep 2019
3075042-A07
Source Location: C:\ePDM\ISLEng\products\dw-versatrax150mkii\manuals\UMDW013977.docm
Page 25 of 31
User Ma
nual
Vehicle Recovery
In the event the vehicle becomes disabled while on a mission in a pipe, provision has been made for
recovery of the vehicle by pulling it out with the tether. Recovering the vehicle by pulling is a serious
operation and can put great demand on the tether system. Listed below are three scenarios where the
vehicle may need to be recovered. Loading the tether beyond its maximum safe capacity of 400 pounds
should be considered only as a last resort.
Note:
Prevention is always the best policy. When traveling through a pipe or in any unknown area,
carefully watch your monitor.
The vehicle may become stuck if it is traveling through a damaged pipe section or improperly steered
around a corner. If the vehicle does become stuck:
1. Determine if it is the vehicle or the tether that is stuck. Look back at the tether with the camera if
possible. If the vehicle can back up but the tether will not reel in, the tether is caught on
something. Try to look for and fix the cause of the catch
before
putting any more strain on the
tether. The operator should use any dexterity available first to free the vehicle without resorting to
force.
2. If the vehicle cannot work itself free from a snag, try using
light
tether tension and tractor power
simultaneously.
3. If still stuck, try a stronger tether tension. When cranked by hand, the winch can pull up to 500
pounds of force. The tether will handle this as a temporary load (if using the portable reel, the
tether will have to be pulled on directly; be careful not to kink it).
4. If the vehicle seems to be permanently stuck in the pipe, the supervisor must decide whether to
sacrifice the tether in order to pull harder (over 500 pounds), or to dig the vehicle out.
Troubleshooting
Camera Control Problems
•
Not all the auxiliary lights are on.
o
The ICON software allows the lights to be controlled independently. Ensure all lights are
enabled. Refer to the ICON interface manual.
o
Inspect for blown LEDs.
•
Warning: High Intensity. Do not look directly into the lights. Use a welding filter (shade #8) to
observe the light elements.
•
Camera pan or tilt does not function in one or both directions.
o
Check that the camera is not jammed.
o
If you can hear a motor running but see no movement, there is a mechanical or clutch
problem inside the camera. Contact us.
•
Camera is moving very slowly.
o
Check the pan & tilt speed in the camera control window. Refer to the ICON user
interface manual.
