Troubleshooting 19; Retrieval Of A Stranded Crawler - Jireh tripod User Manual

5 Troubleshooting
# Problem
1. Display does not turn
on.
2. Display is on but
crawler doesn't
home or drive.
3. Crawler does
not drive and is
unreachable.
4. Steering wheel does
not home.
For technical assistance, see Section 6.2 "Technical Support".
51 Retrieval of a Stranded Crawler
DANGER!
retrieving the crawler (i.e. a mechanism or person must be continuously taking up slack in the tether).
Should the Tri Pod crawler become inoperative while out of reach, and after the solutions to the problems
described in the troubleshooting chart are proven ineffective (see 5. "Troubleshooting"), it may be
necessary to retrieve the crawler manually. To do so:
1. Press the E-Stop Pushbutton to turn off power to crawler. NOTE: Under normal conditions, the
crawler should start descending slowly.
2. If the crawler stops descending, possibly from running into a standard butt weld bead, VERY
CAREFULLY and smoothly pull downwards on the umbilical to overcome the obstacle.
NOTE: FALLING OBJECT HAZARD. It is CRUCIAL that the tether system remains active while retrieving
the crawler (i.e. a mechanism or person must be continuously taking up slack in the tether).
TriPod User Manual
Possible Cause
Input power requirements
not met.
Controller not plugged into
Umbilical.
Umbilical Cable not properly
connected.
TriPod system not started.
Damaged components in
Controller, Crawler, Power
Supply, or cabling.
Damaged components in
Controller, Crawler, Power
Supply, or cabling.
See Possible Causes for
Problem 1.
Steering assembly is
dirty, or slipping/seizing of
steering components.
FALLING OBJECT HAZARD. The tether system must remain active while
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Solution
Ensure input power meets requirements (see
Section 1.7 "Power Requirements").
Plug Controller into Umbilical. Ensure
connectors are dry and clean and pins in
connector are not bent.
Check Umbilical Cable connections at both
ends. Ensure connectors are dry and clean
and pins in connectors are not bent.
Start the TriPod system (see Section 3.2
"System Start Up")
Call manufacturer (see page 4).
Call manufacturer (see page 4).
See Solutions for Problem 1. If crawler still
unresponsive, see Section 5.1 "Retrieval of a
Stranded Crawler".
Call manufacturer (see page 4).
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