Piper Lance II - Assembly of Hydraulic Pump

LANCE II SERVICE
MANUAL
TABLE
VI-I. LEADING PARTICULARS,
HYDRAULIC SYSTEM
HYDRAULIC
PUMP
HYC5005
Hydraulic
Pump
2000
to 2500
psi
High
Pressure
650
+ 150
psi
Low Pressure
45 cu.
in. per
min.
Flow
Rate @
1000
psi
MIL-H-5606
Hydraulic
Fluid
2250
+ 250
psi
Relief
Valve
(Thermal)
400
to 800
psi
Shuttle
Valve
Delivered
Pressure
Pressure
Switch
Open
(OFF)
Pressure
1400
± 100
psi
Close
(ON)
Pressure
Pressure
decreasing
200
to 400
psi
TABLE
VI-II. CHARACTERISTICS,
HYDRAULIC
PUMP
MOTOR
Electrical
Characteristics:
Voltage 14 V.D.C.
Rotation
Reversible
Polarity
Negative
ground
Operating Current
75 amps, max.
at 14-volts
(both
rotations)
Operating
Time
12 seconds
max. with
a current
load
of
75 amperes
at
77
°
F
Overload
Protection
Thermal
circuit
breaker
Automatic
Reset
Time
12
seconds,
max.
Location,
Automatic
Reset
Commutator
end head
of motor
Mechanical
Characteristics:
Bearings
Absorbent
bronze
(Drive
end bearing
in upper pump
and valve assembly casting)
Steel ball
(Thrust, between
commutator
end head
and
end
of armature
shaft)
End
Play, Armature
.005 inch,
min.
(Adjust
by selection
of thrust
washers
on
drive end
of
armature
shaft)
Issued:
1/3/78
1H24
HYDRAULIC
SYSTEM