TM-5-5420-228-24
LAUNCHER HYDRAULICS SYSTEM M48A5/M60A1 TANK CHASSIS, TRANSPORTING: FOR BRIDGE, ARMORED-VEHICLE-LAUNCHED; SCISSORING TYPE, CLASS 60
TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT; MAINTENANCE MANUAL
AUGUST 1985
TM-5-5420-228-24 - Page 89 of 750
TM 5-5420-228-24
FROM
STEP
STE/ICE
Test Procedures
- Continued
(
(
o
4
I
~
Check
relief
valve,
RV8
for
pressure
setting
of
3400
~ 50
psi.
First
Technician
(Operator’s
Station)
●
●
●
●
●
●
●
Engage
hydraulic
clutch.
Set engine
speed
at
1800 rpm.
If performing
DETAILED
TROUBLESHOOTING
PROCEDURE
Symptom-3,
raise
scissor
cylinder
control
lever.
If performing
DETAILED
TROUBLESHOOTING
PROCEDURE
Symptom-6,
depress
scissor
cylinder
control
lever.
Press
and
hold
test
button
until
readout
displays
“CAL”,
then
release
button.
Release
scissor
cylinder
control
lever.
Check
if pressure
indication
on VTM
display
is
between
(=I
to
[=1
psi.
-
Does
VTM
display
Indicate
between
WI
to
l-l
psi?
If performing DETAILED
TROUBLESHOOTING
PROCEDURE Symptom-3,
replace flow regulator PCV3
(page 3-106).
If performing DETAILED
TROUBLESHOOTING
PROCEDURE Symptom-6,
replace check valve CV7
(page 3-116).
o
YES
I-7
VTM
-
DISPIAY
TEST
-
BUITON
RELIEF
VA~VE,
RV8
e
‘
GAGE
PLUG
h
●
If relief valve setting cannot
be brought to within
tolerance, replace cartridge
in relief valve (page 3-88).
1
TA251353
2-56
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