AW 375 - Troubleshooting Specific Performance Issues

determine
cause,
consuit
factory
for
service
Possible
Cuuse:
4.
Low
Power
Reading
A.
Torque
meter
out
of
calibration
B.
Cradle
restriction
of
load
ce1l
movement
C.
RPM
PickuP
imProPerlY
gappgd
D.
Improper
weight
values
used
during
calibration
E.
Improper
engine
fuel
specification
F.
Improper
engine
RPM
specifieation
Fossilsle
RenaeclY:
A.
Calibrate
torque
meter
(See Section
9
for
analog
read-out
Seetion
10A
for
Power
ComPuter)
B.
Remove
restriction
as
requiied
C,
Adjust
air
gaP
to
'010
-
015
O.
Caiibrate
torque
meter
with
properly
known
weights
(See
Section.00)'
Obtain
the
correet
welght
usmg
a
very
reliabie
scale
E.
Adjust
to
proper
OEM
specifications
F.
Adjust
to
proper
OEM
specifications
Possible
Cawse:
5"
High
Power
Reading
A.
Torque
meter
out
of
calibration
B.
Outside
force
aPPlYing
load
on
cradle
movement
C.
Improper
weight
values
used
during
calibration
D.
Improper
specs
being
used
on
test
E,.
Exsessive
over-fueiing
Possible
RewnedY:
A.
Calibration
torque
meter
(See
Section
9
for
analog
readout
and
Section
10A
for
Power
ComPuter)
B.
Remove
force
and
re-balance
torque
metet
C.
Calibrato
torque
meter
with
properly
known
weights
(see Section
118)
D.
Refer
to
tractor
manual
for
correet
sPocification
E.
Reduce
to
OEM
sPeeification
Possible
Cause:
6"
Erratic
ioading
(loads
and
unloads)
A.
Operator
making
rapid
load
valve
adjustments
B.
Low
on
hYdraulic
oil
C.
Defeetive
'chain
and
sProcket
D.
Defective
power
absorption
module
E.
Incorrect
operation
of
control
valve
F.
Fuei
injector
Problems
G.
P.T.O'
in
tractor
sliPPing
Fossible
RemedY:
A.
Make
gradual
adjustments
(See
Section
7
for
ProPer
Procedure)
B.
Refill
resetvoir
to
proper
level
with
10
weight
hydraulic
oil
(one-ha1f
to
two-thirds
tull)
C,
RePlaee
with
new
comPonents
as
required
D.
Refer
to
Section
17,12'
If
unable
to
cletermine
causs
consult
factory
for
Ser",tice.
.
E,,
Make
gradual
adjustments.
'
F.
Detennine
cause
and
reParr
as
required
G.
Delermine
cause
and
rePair
as
required
Possible
Csuse:
7"
Overheating
A.
Inadequate
water
suPPlY
Possible
R.emedY:
A.
Refer
to
Seetion
4, Cooling
Requirements
Possible
Cuase:
8"
Shearing
driveline
Pins
,
A.
Exsessive
torque
load
B.
Incorreet
shear
Pin
C.
Resonant
vibration
D,
Defective
driveline
E.
Load
control
valve
closed
during
sYstem
start
uP
F.
I]efective
power
absorption
module
1B