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 175 of 750

TM
5-5420-228-24
Symptom-7
DETAILED
TROUBLESHOOTING
PROCEDURE
T
LAuNCHER
OPERATION
- HYDRAULICS
(Continued)
Check
relief
valve
RV3 for pressure
setting
of 3600
~
50
psi.
1
$econd Technician
(Launcher)
Place (NK gtlllon
container
under
relief
valve
RV3.
First
Technician
(Operator’
Station)
Disengtige
hydraulic
clutch.
Cycle
bridge
iwnching
control
levers.
Second Technician
(Launcher)
If STWICE is availabie, proceed to Test No. 51
(page 2-47) to test relief valve RV3.
If STE/ICE is not available,
remove
gage plug
RV3 and connect pressure gage in gage port.
First
Technician
(Operator’s
Station)
Engage
hydraulic
clutch,
Set
engine
qwed
at
I WI
rpm.
Depress
overhead
cylinder
cent roi
iever.
Second
Twhnicitin
(Ltiuncher)
Check
if pressure
gage or STE/ICE
indicatea
36CU)* 50 pai.
Is
pressure
3600
~
50 psi?
m
RELiEF
VALVE
RV3
GAGE ‘PLUG
(
6
r
7
System
Is operational.
Perform
launch
and retrieve
L
YES
NO
procedures
(TM 5-5420-202-10).
)
Adjust
reiief vaive
RV3 (page
3-81)
steps
8 through
15,
If relief
valve
setting
cannot
be
brought
to within toierance,
replace
cartridge
in relief
valve
(page
3-80).
if relief vaive
setting
stiil
cannot
be brought
within
tolerance,
notify support
maintenance
of defective
vaive
bank.
2-100
Change
2


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