TM 5-3810-307-24-1-1
SOLENOID NAME
TRANSMISSION SHIFT CONTROL POSITION
F1
F2
F3
F4
F5
F6
N
R3
R2
R1
FWD HI
X
X
X
FWD LO
X
X
X
X
X
X
2ND
X
X
X
X
X
X
1ST
X
X
X
REV
X
X
X
(3)
Place transmission control lever
(a) If different than shown in
in F6. The checkout kit readout
should show T:0000, E:840-860,
circuit.
C:F6, and G:F1.
(b) If neither the red nor green
LEDs light when expected, check
(4)
Release the
brakes
(parking
harnesses and APC 100 fuse
brake also).
and relay box for faulty
connections/ components. If fuse
(a) Turbine rpm (T:) should be
is blown in fuse and relay box
slightly less engine rpm (E:).
check for ground in carrier
harness.
(b) If turbine rpm is considerably
greater (more than 100 rpm) than
(c) If LED in right column lights
engine rpm or if either value
but LED in left column does not,
varies erratically, check the
check fuse in harness tester. If
speed sensors and cables for
fuse is blown, check that solenoid
incorrect or faulty connections.
for reversed wiring at 12 pin
connector.
(c) Check that LEDs 12, 14 and
15 for gear F1 are green as
NOTE
shown in Table 2-3-3. If not,
recheck for correct inputs as
The order of the transmission solenoids
shown in Table 2-3-1.
from top to bottom and the harness tester
LEDs from top to bottom is the same.
(d) Have an assistant check the
transmission
harness
tester
(d) If a red LED lights, the leads for
LEDs.
These should match
that solenoid are reversed in the
Table 2-3-2. If not, check the
harness. Correct and recheck.
APC 100 fuse and relay box for
incorrect wiring.
(e) If both the red and green LEDs
light, check the ground circuit in
(5)
Accelerate engine enough for
the harness for an open or poor
transmission to shift to F2 and
connection.
Correct and
verify
LEDs
illuminate
on
recheck.
checkout kit as shown in Table 2-
3-3 and on harness tester as
b.
Check APC 100 fuse and relay box
shown in Table 2-3-2.
outputs.
(6)
Repeat steps (4) and (5) for each
(1)
Place crane on outriggers.
of the remaining gears.
(2)
Restart engine from carrier cab
and apply brakes.
2-3-22
