1695130 ENGINE AR-COMPLETE Caterpillar parts 3406E ENGINE
Alternative (cross code) number:
Compare Prices: .
As an associate, we earn commssions on qualifying purchases through the links below
Compatible equipment models: 1695130:
TRUCK ENGINE 3406E Caterpillar
Illustration 1 g02903003
Right Side of Drum (1) Vibratory motor (2) Flushing valveNote: The motor in the above illustration shows the CS68B and CP68B machines. The vibratory motor on the other machines in this group is rotated 90 degrees counterclockwise.Vibratory motor (1) is located on the right side of the drum. The vibratory motor is an axial piston motor with a fixed displacement. This motor turns the eccentric weight drive shaft when the vibratory system is operating.Rubber isolation mounts dampen the vibration which is transmitted from the drum to the machine when the vibratory system is operating.The vibratory motor contains integral flushing valve (2). The flushing valve contains the flushing spool and the flushing relief valve. The flushing spool directs oil from the low-pressure side of the hydrostatic loop to the flushing relief valve. The flushing relief valve directs oil from the low-pressure side of the loop into the motor case drain.On machines with the variable frequency system, a speed sensor (not shown) is mounted to the vibratory support. The speed sensor is a frequency type device. A gear on the output shaft of the vibratory motor rotates past the tip of the speed sensor. Each time a tooth passes the sensor, an electrical impulse is sent to the machine ECM. The machine ECM uses the input from the vibratory speed sensor in order to calculate vibratory frequency. Vibratory frequency is shown on the display. The machine ECM also uses input from the vibratory speed sensor in the vibratory control logic. The variable frequency system operates using closed loop logic. The vibratory speed sensor provides the feedback loop required for the closed loop logic.
Illustration 2 g02903017
When the vibratory system is operating, supply oil from the vibratory pump enters the motor. Supply oil is directed to the inlet port of valve plate (8). The valve plate directs oil into the piston chamber in barrel assembly (3). This pressure forces pistons (4) which are aligned with the inlet port to move out of the barrel assembly.As pistons (4) are forced out of barrel assembly (3), the slipper pads slide along swashplate (9). This action causes barrel assembly (3) to rotate. Since the barrel assembly is splined to output shaft (10), the output shaft also rotates.As barrel assembly (3) rotates, pistons (4) align with the outlet port in valve plate (8). The rotation of the barrel assembly forces oil out of the piston chambers and into the low-pressure side of the hydrostatic loop. The low-pressure oil acts against flushing relief valve (7). The low-pressure oil then returns to the inlet side of the hydraulic pump, which completes the hydrostatic circuit.High-pressure oil acts against one side of flushing spool (6), and low-pressure oil acts against the other. The force from the high-pressure oil causes the flushing spool to shift. The shift opens a passage for oil in the low-pressure circuit to act against flushing relief valve (7). The flushing relief valve opens, which allows oil in the low-pressure circuit to flow into the motor case