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$99.72
22 Jul 2025
US:
QUALITY PARTS
3009546 Alarm AS-Backup (New AFTERMARKET) - G&T Engine Parts
G&T Engine Parts Condition: NEW AFTERMARKET || Weight: 0.99 lbs || Items are sold by part number only. Picture is for illustration purposes and the part or parts may be different in color or quantity. || Use of any OEM manufacturer name is not intended to represent any relationship between the two companies, instead it indicates that we sell replacement parts that are compatible with OEM components.
$58.09
06 Feb 2025
US:
DMP Dependable
Backup Alarm Aftermarket Replacement 300-9546 3009546 for 259D 279C 279C2 279D 289C 289C2 289D 299C 299D 299D XHP Engine 3044C C3.4
Generic Machinery Parts || Heavy Equipment Parts || Spare Parts
$64.37
11 Oct 2024
US:
DMP Dependable
Backup Alarm Aftermarket Replacement 300-9546 3009546 for 259D 279C 279C2 279D 289C 289C2 289D 299C 299D 299D XHP Engine 3044C C3.4
Generic Machinery Parts || Heavy Equipment Parts || Spare Parts
Illustration 1 g01013593 Air starting system (typical example) (1) Relay valve (2) Hose (3) Starting motor solenoid (4) Hose (5) Air starting motor Illustration 2 g01192361 Air starting motor (6) Air inlet (7) Vanes (8) Rotor (9) Pinion (10) Reduction gears (11) Piston (12) Piston spring When the main supply of pressurized air is ON, pressurized air is provided to relay valve (1). The main supply of pressurized air is blocked by the relay valve. The relay valve allows some control air pressure to flow through hose (2) from the bottom of the relay valve to another valve that is connected to starting motor solenoid (3).When the normally closed starting motor solenoid is activated for start-up, the solenoid opens the connected valve. The valve allows the control air pressure to flow behind piston (11) inside air starting motor (5).The control air pressure pushes the piston. The piston compresses piston spring (12) and the piston moves the drive shaft for pinion (9) outward in order to engage the pinion with the flywheel ring gear. The starting motor does not crank the engine yet.After the pinion is engaged with the flywheel ring gear, a port in the starting motor is opened in order to allow the control air pressure to flow through hose (4) to the top of relay valve (1). The relay valve opens in order to allow the main supply of pressurized air to flow through the starting motor's air inlet (6).The pressurized air causes vanes (7) and rotor (8) to rotate. The rotor uses reduction gears (10) to rotate the drive shaft for the pinion and the pinion rotates the flywheel in order to crank the engine.When the engine starts to run, the flywheel will begin to rotate faster than the pinion. The design of the drive shaft for the pinion allows the pinion to move away from the flywheel. This prevents damage to the air starting motor, to the pinion, and to the flywheel ring gear.When the engine control senses the crank terminate speed, starting motor solenoid (3) is de-energized. The solenoid closes the attached valve and the control air pressure is removed from piston (11). Piston spring (12) retracts the piston, the drive shaft, and pinion (9).The retraction of piston (11) closes the passage for the control air pressure to relay valve (1). The relay valve closes in order to shut off the main supply of pressurized air to the starting motor.
