Overspeed Contactor Group
Usage:
(1) Lock Screw. To adjust, loosen the lock screws and turn the cap clockwise (as seen from the terminal end) to lower the overspeed setting.
If the full load rpm of the engine is 1500 the contacts must close at:
On engine ... 1770 ± 25 rpm
On bench ... 885 ± 10 rpm
If the full load rpm of the engine is 1800 rpm the contacts must close at:
On engine ... 2124 ± 25 rpm
On bench ... 1065 ± 10 rpm
Caterpillar Information System:
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3304B & 3306B MARINE ENGINES Testing & Adjusting
3126 HEUI Industrial Engines 3126 HEUI Industrial Engines
3126 HEUI INDUSTRIAL ENGINES ENGINES EQUIPPED WIT Introduction
3126 HEUI INDUSTRIAL ENGINES ENGINES EQUIPPED WIT Section 1: Electronic System Overview
3126 HEUI INDUSTRIAL ENGINES ENGINES EQUIPPED WIT Section 2: Programming Parameters
3126 HEUI INDUSTRIAL ENGINES ENGINES EQUIPPED WIT SECTION 3: Troubleshooting Without A Diagnostic Code
3126 HEUI INDUSTRIAL ENGINES ENGINES EQUIPPED WIT Section 4: Troubleshooting With A Diagnostic Code
3126 HEUI INDUSTRIAL ENGINES ENGINES EQUIPPED WIT P-501: Inspecting Electrical Connectors
3126 HEUI INDUSTRIAL ENGINES ENGINES EQUIPPED WIT P-502: How To Use The Tests
3126 HEUI INDUSTRIAL ENGINES ENGINES EQUIPPED WIT P-503: Electrical Power Supply to the ECM
3126 HEUI INDUSTRIAL ENGINES ENGINES EQUIPPED WIT P-504: Throttle Position Sensor