National Crane
Published 5-27-2018 Control # 039-06
9-7
800D
INSTALLATION
PTO HORSEPOWER REQUIREMENTS
A three pump hydraulic system is furnished with this crane.
The unit is equipped with a three section pump that will
supply 34 gpm (128 l/min) to the hoist, 18 gpm (68 l/min) to
the boom and outriggers and 10 gpm (37 l/min) to the swing
(turn) circuit. To provide these flows, the pump shaft must
turn at 2500 RPM. The PTO requirement is a torque rating of
at least 200 lb-ft (271 Nm) or 40 HP (30 KW) per 1000 RPM
of PTO shaft speed.
Direct Mount Pump To PTO
Most pump installations can be direct mounted to the PTO
using adapter assemblies available from the PTO supplier. If
the pump is direct mounted, its weight should be supported
by a strap between the pump and the transmission. The
splined shaft coupling in a direct mount pump installation
requires lubrication. Coupling Lube Spline Lubricant should
be applied to the shaft during original installation and
reapplied to the shaft or zerk provided on PTO housing shaft
semi-annually thereafter. It is available from Schaeffer
Manufacturing Company, 102 Barton Street, St. Louis,
Missouri.
Pump Rotation
It is imperative that the three section hydraulic pump
installed in a 800D application be the correct pump rotation
configuration for the truck drive train/power take off rotation
direction. Make certain which direction the power take off
output shaft rotates before selecting a clockwise (cw) or
counter-clockwise (ccw) rotation hydraulic pump. Either cw
or ccw rotation pumps are available, and are marked clearly
with a directional arrow on the pump housing.
Do not attempt to turn pump in the opposite direction of
the indicating arrow on the pump housing. Pump failure
will result.
Do not confuse engine crankshaft rotation with power take
off rotation. If the power take off shaft rotates opposite the
engine crankshaft, it is turning in a clockwise (cw) direction
when viewed from the rear of the truck. If the power take off
shaft rotates the same as the engine crankshaft, it is turning
in a counter-clock- wise (ccw) direction when viewed from
the rear of the truck. See illustration below.
Auger System
Units equipped with an auger system use a valving system
that combines the 34 gpm (128 l/min) hoist and 18 gpm (68 l/
min) crane function pump flows at full system pressure
during auger operation. Digging operations at these
combined flow/pressure conditions increase the output hp
(kW) and duty cycle requirements of the PTO. A PTO with a
torque rating of 350 lb-ft (479 Nm) or 65 hp (48 kW) per 1000
rpm PTO shaft speed is recommended for auger unit
installations.
VIEW FROM
REAR OF
VEHICLE
CRANKSHAFT
ROTATION
CRANKSHAFT
ROTATION
OPP: OPPOSITE OF THE
CRANKSHAFT ROTATION
CRNK: ENGINE
CRANKSHAFT ROTATION
CW POWER
TAKE OFF
ROTATION
CCW POWER
TAKE OFF
ROTATION
9432
Fo
r
Reference
Only
Содержание National Crane 800D
Страница 1: ...Operator and Service Manual National Crane 800D F o r R e f e r e n c e O n l y ...
Страница 4: ...F o r R e f e r e n c e O n l y ...
Страница 98: ...MAINTENANCE 800D 3 10 Published 5 27 2018 Control 039 06 THIS PAGE BLANK F o r R e f e r e n c e O n l y ...
Страница 194: ...SPECIFICATIONS 800D 8 4 Published 5 27 2018 Control 039 06 THIS PAGE BLANK F o r R e f e r e n c e O n l y ...
Страница 216: ...INSTALLATION 800D 9 22 Published 5 27 2018 Control 039 06 THIS PAGE BLANK F o r R e f e r e n c e O n l y ...
Страница 232: ...CRANE INSTALLATION 800D 10 16 Published 5 27 2018 Control 039 06 THIS PAGE BLANK F o r R e f e r e n c e O n l y ...
Страница 252: ...SCHEMATICS 800D 2 Published 5 27 2018 Control 039 06 F o r R e f e r e n c e O n l y ...
Страница 255: ...F o r R e f e r e n c e O n l y ...
Страница 256: ...F o r R e f e r e n c e O n l y ...