I. Product Overview

5484-735 is an original American Woodward permanent magnet DC speed control motor, specifically paired with the UG-8 series mechanical hydraulic speed controller. It is the micro-adjustment actuator for the internal throttle / oil valve of the speed controller, used to receive the speed control signals from the 2301A and MicroNet controllers, and drive the hydraulic servo mechanism to change the oil supply of the unit and regulate the speed. It is mainly used for marine diesel engines, land-based diesel/gasoline generator sets with UG-8 hydraulic speed control retrofit replacement spare parts.

NSN military part number: 6105-01-283-1655, military + industrial dual-purpose accessory.

Core Electrical Parameters Table

Parameter Item Specification

Rated Power Supply DC24V

Rated Speed 4 RPM (low-speed high-torque reduction motor)

Wiring Definition Red (+), Black (-)

Positive Connection: Speed increases, accelerator is opened

Negative Connection: Speed decreases, accelerator is closed

Motor Type PM Permanent Magnet DC Reduction Motor

Protection Grade Industrial sealing, vibration-resistant (ship grade)

Operating Temperature -35℃~+75℃

Working Principle

External electronic control (2301A / Digital Speed Control Board) outputs positive/negative 24VDC:

Red positive, Black negative: Motor forward rotation → Drive UG-8 hydraulic valve core → Increase oil supply, increase speed;

Red negative, Black positive: Motor reverse rotation → Valve core returns to position → Reduce oil supply, decrease speed;

The hydraulic speed controller is precisely adjusted by alternating positive and negative rotations to achieve electronic speed control instead of manual knob adjustment.

Compatible Models

UG-8 Full Series Hydraulic Speed Controllers (8520-823 and other models are standard equipped);

Old diesel generator sets, marine auxiliary machinery, oil fracturing unit mechanical UG speed control electrical control modification;

Used in combination with 2301A, 9907 series load distribution boards for complete use.