|
| |
TM 9-2320-364-20-2
2-1486
35. ENGINE BRAKE DOES NOT OPERATE IN HIGH (CONT).
Low engine brake (left hand)
operates.
Engine brake harness OK.
Wire 1714 OK.
Engine brake switch faulty.
Wire 1715 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If engine brake switch is faulty,
engine brake will not operate.
YES
NO
Replace engine brake
switch (Para 7-27).
Verify repair, go to
Step 5 of this Fault.
4.
Is continuity measured be-
tween wires 1714 and 1715
at engine brake switch,
terminals 3 and 1?
Repair wire 1715
(see schematic
Fig 2-38) or notify
DS Maintenance.
Verify repair, go to
Step 5 of this Fault.
3.
Repair wire 1714
(see schematic
Fig 2-38) or notify
DS Maintenance.
Verify repair, go to
Step 5 of this Fault.
YES
NO
Low engine brake (left hand)
operates.
Engine brake harness OK.
Wire 1714 faulty.
Engine brake switch faulty.
Wire 1715 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If wire 1714 is loose, faulty, or
shorted to ground, right hand
engine brake will not operate.
WARNING
WARNING
Are 10 to 14 vdc measured on
wire 1714 at engine brake
switch connector, terminal 3?
Read WARNING
on Page 2-1487
Read WARNING
on Page 2-1487
|
