SEAL 3Y0621 - Caterpillar

Illustration 8 g01107890
(9) Generator (10) Stroke limiter (11) Generator valve
Remove the Hex Head Cap in order to expose the Stroke Limiter screw (10). Adjust the speed of the generator by turning screw (10) of the stroke limiter. Screw (10) of the stroke limiter is located on the valve for the generator.
DECREASE generator speed by turning the adjusting screw clockwise.
INCREASE generator speed by turning the adjusting screw counterclockwise.
Repeat steps 3 and 4 until the loaded generator speed of 3000 50 RPM is achieved.Operating Voltage Set
: High voltage exists at the generator system when the generator is activated.Note: Generator speed should always be set before adjusting the Operating Voltage.In order to provide a sufficient operating voltage measure the voltage only with a connected and activated magnet. Main disconnect switch and main breaker at the magnet controller must be in the ON position.
Illustration 9 g01370027
15 kW Controller (12) Resistor R1 (13) R1 Variable Resistor Adjustment (14) Boost Timer K7 (15) Drop Timer K12 (16) Terminal Block (AA) Main Breaker F1
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Terminal Block (15 kW Version) (17) Terminal 11 (18) Terminal 12
Start the engine.
Turn on the generator switch (3) and activate the magnet with the Magnet Lift/ Drop switch (8) .
Check the Operating Voltage across terminals 11 (17) and 12 (18) of the terminal block (16). The Operating Voltage should be 230 5 VDC.If Operating Voltage is 230 5 VDC, skip steps 4 through 6.
Turn off the generator and the engine.
Set the output voltage to 230 5 VDC by adjusting R1 (12) .
Move the R1 Variable adjustment (13) to the LEFT in order to INCREASE the Operating Voltage of the generator. This will decrease the resistance of R1.
Move the R1 Variable adjustment (13) to the RIGHT in order to DECREASE the Operating Voltage of the generator. This will increase the resistance of R1.
This adjustment does not affect BOOST or DROP Voltage.
Repeat steps 1 through 5 until Output Voltage is 230 5 VDC.Boost Voltage
The Boost Voltage should be 260 +/- 10 VDC and can be measured during the Boost Time period across terminals 11 (17) and 12 (18) of the terminal block (16). If the Operating Voltage is set correctly, the Boost Voltage should also be correct. Adjustment of the Boost Voltage is not possible.Boost Time Set
Boost Timer K7 (14) controls the amount of time in which the boost voltage is applied when the magnet is activated. The Boost time should be set to 2 seconds.
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Boost Timer K7 (19) Timer dial (20) Multiplier switch (21) Seconds/Minutes select switch
Adjust K7 Timer dial (19) DOWN only if magnet is hot (90 deg. Celsius) by the end of a 8 hour shift
Adjust K7 Timer dial (19) UP to a maximum of 3 seconds only if magnet responds poorly
"x 1" (20) should be selected (Blocked by epoxy)
"S" (21) should be selected (Blocked by epoxy)Note: NEVER adjust BOOST time above 3 seconds. Performance will not be enhanced. Overheating of the magnet can result.Drop Voltage
The Drop Voltage should be 170 +/- 10 VDC and reverse in polarity to the Operating