GAC February Newsletter 2025

APPLICATION OF THE MONTH : 275 ACTUATOR SERIES SUPPORTS WALMART ON A BAUDOUIN SOLUTION

When a Walmart Commercial Center needed repairs to the backup generator, our partners at? Grupo Idimex Oficial IDIMEX upgraded this Baudouin 6M21G390/6, replacing the Fortrust A900 with a GAC ACB275H.? “The customer is happy with the GAC quality.” ?It was a bit more expensive but it was in stock, and easy to install.

Whether you are replacing a FORTRUST actutator like the IDIMEX project, or building a generator from scratch, the 275 offers the power, reliability, and longevity

PRODUCT OF THE MONTH: ABOUT OUR 275 PUMP MOUNTED ACTUATOR

The 275 Series Electric Actuator , a powerful second-generation actuator, was designed to support Bosch P3000 – P7000 fuel-injected pumps, and is commonly used to directly replace a Fortrust A900.

Coupling the 275 Series with a fuel pump delivers a high-performance fuel control system without external linkages or brackets.

The two isolated chambers in the 275 Series eliminate magnetic particles collecting in the actuator. The 275 Series typically outlasts the life of its host engine and is maintenance-free.

• Control in-line injection pump fuel rack up to 16 cylinders
• Mount directly on Bosch P and RP21 fuel injection pumps in place of mechanical governor
• Optimum performance for in-line P pumps
• Controls up to 16-cylinders
• Fast response time, <35 msec, 13.2 lbs max force, 0.79 in. (20mm) max travel
• Manual shutoff lever, included, ?Adjustable max fuel limit
• Compact form factor, no external linkage, not prone to tampering
• Approved by major OEMs including Deutz, Iveco, Volvo, and MAN(HD)
• Oil drains available for barbed fittings or high crank case pressure on Deutz 1015 engine
• Camshaft bearing retainer kits, position feedback transducers, and heavy-duty bearing retention options are available.

TECH TIP OF THE MONTH: MSPs

If you suspect the magnetic pickup is not functioning properly, measure its resistance by disconnecting the pickup leads and check the sensors with an OHM meter. Refer to engine manufacturer’s specifications for acceptable values.

The output voltage of a magnetic pickup is affected by three factors.

• Output voltage increases with increases in the surface speed of the flywheel teeth.
• Voltage decreases as the air gap between themagnetic pickup and the flywheel teeth increases.? The optimum air gap is typically 0.020” to0.025” {0.5 to 0.65mm}
• The voltage waveform is determined by the size and shape of the gear tooth in relation to the size and shape of the sensors pole piece.

Approximate MSP Resistance

• Long Standard Model 250 ? max
• Short Standard Model 220 ? max
• Standard Metric Models 250 ? max

How To Measure Resistance of an MSP:

1. Measure between the pickup case and leads with an ohm meter for near infinite resistance.
2. ?Confirm there are no open circuits, including the wiring harness and all connectors.
3. Inspect the sensor for mechanical damage andremove any debris that might have accumulated on the pole piece.?
4. Reset the air gap to 0.020” to 0.025” (0.5 to 0.65mm) and confirm that the sensor outputs a minimum of 1.0 VAC at cranking across the inputs to the speed control.