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Page 1-6
Bacharach, Inc.
Instructions 67-9319
INTRODUCTION
INJECTOR CALIBRATOR CD3
P u l l e y s
C a m b o x
M a i n D r i v e M o t o r
F l y w h e e l
( h i d d e n )
Figure 1-6. Cabinet, Console, Operators Table,
Reservoir & Clamping
Figure 1-7. Main Motor, Pulleys, Flywheel, &
Cambox
1.3 Construction
Cabinet:
The frame is of welded steel 1-1/4 inch
square tubing and angle iron. The upper left side
and both front doors are easily accessible for
changing speed, storing accessories, and performing
routine maintenance through hinged doors. All
other external panels are secured with 1/4-turn
fasteners for easy removal. Rotating parts are
protected with a hinged cover, safety interlocked
with the main drive motor.
Console and operator’s table:
The instrument
console is mounted to the operator’s table with
vibration absorbing mounts for the controls and
gauges. Vibration absorbing leveling pads are
provided for easy leveling of the unit.
Calibration Fluid Reservoir:
The calibration
fluid is stored in a 8 U.S. gallon (30 liter), thermo-
statically controlled reservoir which is used in
common by the injector test fuel supply and the
clamping circuits. Contained in the reservoir are
two 500-watt electric heaters and a cooling coil. The
reservoir also has a dipstick and two drain valves.
Injector clamping:
Injectors are clamped using a
hydraulic cylinder. The cylinder is locked mechani-
cally at all times. An air driven hydraulic pump
called an intensifier provides the high pressure
required to unlock the clamp cylinder.
Pneumatic clamping:
Two double-acting air
cylinders are used in clamping the Cummins
injectors body to seat.
Circulating and clamp cylinder pump:
A 1/3
HP electric motor drives the gear pump supplying
fluid to the double-acting hydraulic cylinder which
clamps and unclamps the injector. The motor and
pump run continuously which keeps the calibration
fluid circulating to stabilize fluid temperature.
Main drive motor:
The calibrator is powered by
an1800 RPM synchronous speed electric motor
operated by a starter with overload protection. This
motor drives the camshaft which in turn activates
the plunger in the injector being tested. The motor
also drives the injector supply pump.
Pulleys:
A pulley arrangement between the main
motor drive shaft and the cam shaft offers two
speed settings. The motor is mounted on a hinged
plate and a barring tool inserted into the yoke
permits quick speed change over from CUM (1050
RPM) to DD (2000 RPM) or vice versa.
I n s t r u m e n t C o n s o l e
O p e r a t o r s T a b l e
H y d r a u l i c C y l i n d e r
C i r c u l a t i n g a n d C l a m p i n g
M o t o r a n d P u m p
C a l i b r a t i o n
F l u i d R e s e r v o i r
Содержание 67-7622
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