Section 5. Troubleshooting
Toyota Orderpicker Model
7BPUE
15 Service Manual
Troubleshooting Wiring Problems
Troubleshooting Wiring
Problems
Visually inspect all wiring and electrical
components for:
Loose connections or connectors
Loose or broken terminals
Damaged terminals, blocks, or strips
Exposed wire at terminations, excessive
strip gap
Abrasions, scrapes, nicks in the wire,
move a harness, cut a cable tie, or remove the
wire from a bracket. Note carefully the location
of the wire and all protective or securing
attachments before moving the harness.
After repair, return or replace all protective
and/or securing hardware to its original
condition. Protective materials are necessary for
the interconnect system to perform reliably.
Examine and maintain any added materials
used to dress or protect the wire. This includes
spiral wrap, brackets, cable ties, fasteners,
flexible conduit, etc.
damage from overheating or burns, or
other general insulation damage
Do not attach tie wraps tight enough to pinch or
deform cable harnesses. Avoid tie wrapping
Broken wire strands and shorted
hydraulic hoses which expand with pressure to
conditions (especially those that are close
hinder
extra
pinching
of
tie
wrapped electrical
to metal edges or surfaces)
cables.
Power Cables
Inspection
Power cables should be checked for damage,
including:
Evidence of overheating
Burned spots in the cable
Nicks or cracks in the insulation
Damaged or overheated terminal lugs
Damaged mounting hardware or brackets
Use a digital ohmmeter to check for wiring
continuity.
Wiring Harness
Terminology
The term
"
connector JPCx" or
"
connector JPTx"
means a mated connector consisting of two
connector halves. One half contains male
connectors, or pins
(P); the other half contains
female connectors, or jacks
(J).
The third
character references the relative location of the
Repair or replace damaged cables or mounting
Connections
On
the
carriage
hardware as necessary.
manager are designated by a (C). Connections
on the
steer/tractor manager are designated by
Power cables are marked on the terminal lug
(T). Hanging connections are designated by
(H).
with the location where they belong. If the
marking is missing or is not readable, remark
When
you
a
mated
JP
connector.
the cable with the correct information.
you will have two connector halves. The
individual connector halves are designated by
The terminal lugs should be crimped tightly and
"
Jx
"
and
"
Px.
"
securely on the wire. Replace the lug if
overheating is evident. Repair or replace faulty
JPT3
is
the
mated
connectors as necessary.
connector for steer position feedback.
53
represents the jack connections, P3 represents
Guidelines
the
pin connections and T designates the
steer/tractor manager.
During troubleshooting and repairs,
it
is
sometimes necessary to unplug a connector,
00700
-
CL222
-
05,
1
5
March 2005
To Next Page
Loading...
Need help?
General
