PS Magazine - APRIL 1975
PS, The Preventative Maintenance Monthly
ISSUE 269
APRIL 1975
1
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The hydraulic system must have a
constant level of fluid. You've got to
check daily to keep the fluid at the right
levels. The system may leak a little bu±
this can usually be corrected by loosening
the leaking conNectiOns and then tighten-
ing them again for proper seating.
When your unit mechanic hAs finished
the work he is authorized to do on the
hydraulic system, he should carefulLy
cheCk to be sure all lines are properly
secured. While the Lines are opeN, never
let dirt, paint and other crud ge² in. Even
small amounts knock out the servo³
mechanism. In fact, never operate the
system with aRy of the lines disconnected.
´heck the tw
pressure gaGes above
the gunner's head daily. The 2000µlb
hydraulic system pressure is necessary to
¶
p
e·ate the tu¸rret and cupola while the
1400µ1700µlb equilibration accumulator
H£Yl
TH' tURrE±²S
F³OZeN-´
Wonµ¶
TUR±!
I
pressure gage registers th¹ pressure in the
gun's stabilization system.
If the turret's electric motor runs
frequently during the power mode, check
the NitºogeN pressure in the 2000»lb
hydraulic system's main accumulator¼
This is done by draining the hydrauLic
Fluid back to the reservoir. The ne½dle on
the system pressure gage shouLd fall
slow¾¿ from 2000 to 1600µ1500ÀlbsÁ and
drop inSta
n
tly Âto 0 after that. If it doesN'tÃ
you add nitrogen.
IÄ the needle of the equilibration
accumulator pressure gage wavers, you
check tHe nitrogen pressure in th
·
±
equilibration accumulator.
²-
.
E lLlL± ²L³E C ´LLµL¶LLL c
The generator's ÅƵÅÇÇ button must
be in the Å
F
Ç pÈÉitiÈn when the tank is
FoÊdiËg in Ìater deeper than
3
feet.
Æever cut thÍ air intake boot when
replacing the generator and be sure thÎ
cover for the generator blower motor
stays in place.
Æever operate your electrical systems
Ìhen the
Ï
batteries are low. When you're
running those systems be sure the engiNe
is on so the batteries will stay charged.
ST·e
Ðhorts iN the electrical system can bÑ
prevented by some simple housekeepingÒ
Æever slosh water arouÓd in the turret.
turret with
high pressure water hoses or a steam
jenny.Ôour M60Õ2 will come down with
rust and shorts.
Before turning on the master switch, be
sure the circuit breakers are on. IF you
don't, the circuit breaker light flashes. Õs
a result some people replace the network
²
coNtrol panel needlessly.
The circuit breaKers can buÖ out if the
batteries are low or if the hyDraulic fluid
is low aNd the power release box has to
cycle more than once every 5 seconds.
If a circuit breaker does flip off, tuÖ it
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