3304 & 3306 INDUSTRIAL & MARINE ENGINES Caterpillar


Starter Motors (4N3180, 7N6503 And 4N3181)

Usage:

NOTE: Make reference to STARTER SOLENOID.

4N3180 24V (Delco-Remy Number 1109640)

Rotation is clockwise when seen from drive end.

Minimum speed with no load ... 5500 rpm

Maximum speed with no load ... 7500 rpm

Current consumption (draw) at no load:

Minimum with solenoid at 20V ... 140 A

Maximum with solenoid at 20V ... 170 A

Clearance between pinion and housing (pinion clearance) ... .36 in.(9.1 mm)

(1) Tension of brush spring ... 80 oz.(22.2 N)

(2) Torque for screws holding nose housing to lever housing ... 13 to 17 lb. ft.(18 to 23 N·m)

(3) Torque for terminal nuts ... 20 to 25 lb. ft.(25 to 35 N·m)

7N6503 12V (Delco-Remy Number 1114748)

Rotation is clockwise when seen from drive end.

Minimum speed with no load ... 4000 rpm

Maximum speed with no load ... 7000 rpm

Current consumption (draw) at no load:

Minimum with solenoid at 9 V ... 140 A

Maximum with solenoid at 9 V ... 215 A

Clearance between pinion and housing (pinion clearance) ... .36 in.(9.1 mm)

(1) Tension of brush spring ... 80 oz.(22.2 N)

(2) Torque for screws holding nose housing to lever housing ... 13 to 17 lb. ft.(18 to 23 N·m)

(3) Torque for terminal nuts ... 20 to 25 lb. ft.(25 to 35 N·m)

4N3181 24V (Delco-Remy Number 1113853)

Rotation is clockwise when seen from drive end.

Minimum speed with no load ... 5500 rpm

Maximum speed with no load ... 7500 rpm

Current consumption (draw) at no load:

Minimum with solenoid at 20V ... 75 A

Maximum with solenoid at 20V ... 95 A

Clearance between pinion and housing (pinion clearance) ... .36 in.(9.1 mm)

(1) Tension of brush spring ... 80 oz.(22.2 N)

(2) Torque for screws holding nose housing to lever housing ... 13 to 17 lb. ft.(18 to 23 N·m)

(3) Torque for terminal nuts ... 20 to 25 lb. ft.(25 to 35 N·m)

Caterpillar Information System:

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3304 & 3306 INDUSTRIAL & MARINE ENGINES Flywheel Housing Bore
3304 & 3306 INDUSTRIAL & MARINE ENGINES Flywheel Housing
3304 & 3306 INDUSTRIAL & MARINE ENGINES Flywheel
3304 & 3306 INDUSTRIAL & MARINE ENGINES Flywheel Housing Tightening
3304 & 3306 INDUSTRIAL & MARINE ENGINES Flywheel Ring Gear
3304 & 3306 INDUSTRIAL & MARINE ENGINES Engine Support (2N8485)
3304 & 3306 INDUSTRIAL & MARINE ENGINES Starter Solenoids
3304 & 3306 INDUSTRIAL & MARINE ENGINES Starter Magnetic Switches
3304 & 3306 INDUSTRIAL & MARINE ENGINES Series Parallel Switches
3304 & 3306 INDUSTRIAL & MARINE ENGINES Shutoff Solenoid
3304 & 3306 INDUSTRIAL & MARINE ENGINES Pressure Regulating Valve For Air Starting Motor
3304 & 3306 INDUSTRIAL & MARINE ENGINES Air Starting Motor
3304 & 3306 INDUSTRIAL & MARINE ENGINES Hydraulic Starting Motor
3304 & 3306 INDUSTRIAL & MARINE ENGINES Pressure Accumulator For Hydraulic Starter
3304 & 3306 INDUSTRIAL & MARINE ENGINES Charging Pump For Hydraulic Starter
3304 & 3306 INDUSTRIAL & MARINE ENGINES Hand Pump For Hydraulic Starter
3304 & 3306 INDUSTRIAL & MARINE ENGINES Systems Operation
3304 & 3306 INDUSTRIAL & MARINE ENGINES Testing And Adjusting
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