Radiator Fan 2485C546 Instruction Manual

Introduction

This manual provides essential information for the proper installation, operation, maintenance, and troubleshooting of the 2485C546 Radiator Fan. This fan is designed as a replacement part for various Perkins engine models, ensuring optimal engine cooling performance. Please read this manual thoroughly before attempting any installation or maintenance procedures.

Engine Compatibility

The 2485C546 Radiator Fan is compatible with the following Perkins engine models:

1104D-E44T
1104D-44T
1104C-44
1104C-44T
1104C-E44T

Specific engine type codes include:

Engine Type DC: DC51230, DC51240, DC51241, DC51377, DC51414, DC51442, DC81716, DC81770, DC82201
Engine Type DD: DD51378, DD51379, DD51393, DD51443, DD82020, DD82021, DD82061, DD82199, DD82478
Engine Type DJ: DJ51279, DJ51282, DJ51298, DJ51316, DJ51434, DJ81557, DJ81808, DJ82519
Engine Type DK: DK51278, DK51280, DK51283, DK51284, DK51300, DK51301, DK51318, DK51319, DK51435, DK51436, DK60160B, DK60162B, DK60163B, DK60164B, DK60165B, DK60166B, DK60167B, DK60168B, DK60169B, DK81809, DK81810, DK82520, DK82521
Engine Type NH (1104D-E44T): NH38575, NH70831, NH70835, NH70920, NH70953, NH70959, NH70980, NH71154, NH75030, NH75628, NH82130
Engine Type NK (1104D-44): NK75036, NK75036R, NK75038, NK75038R, NK75104, NK75104R, NK82481
Engine Type NL (1104D-44T): NL38752, NL38753, NL38908, NL38909, NL38910, NL38947, NL38948, NL38948R, NL70788, NL70836, NL70844, NL70845, NL70868, NL70904, NL70929, NL70981, NL70981R, NL70982, NL71122R, NL71123, NL71234, NL75015, NL75040, NL75040R, NL75085, NL75085R, NL75184, NL75333, NL75483, NL75517, NL75518, NL75519, NL75520, NL82047, NL82172, NL82354
Engine Type RE (1104C-44): RE38249, RE38268, RE51210, RE51212, RE51212R, RE51215, RE51222, RE51224, RE51227, RE51465, RE70648, RE70650, RE70685, RE81714
Engine Type RF (1104C-E44): RF38470
Engine Type RG (1104C-44T): RG38337, RG38486, RG38574, RG51207, RG51211, RG51219, RG51229, RG51234, RG51236, RG51237, RG51237R, RG51380, RG51385, RG51444, RG70649, RG70651, RG70690, RG81983, RG82019, RG82447
Engine Type RH (1104C-E44T): RH70579, RH70580, RH70586
Engine Type RR: RR51289, RR51289R, RR51292, RR51292R, RR51341, RR51341B, RR51342, RR51342B, RR51348, RR51348B, RR60120, RR60121, RR60121B, RR60136, RR60136B, RR60138, RR60138B, RR60143, RR60143B, RR60145, RR60145B, RR60148, RR60148B
Engine Type RS: RS38451, RS51276, RS51276R, RS51277, RS51277R, RS51290, RS51291, RS51291R, RS51293, RS51293R, RS51302, RS51303, RS51317, RS51335, RS51335B, RS51343, RS51343B, RS51344, RS51344B, RS51345, RS51345B, RS51346, RS51346B, RS51347, RS51347B, RS60122, RS60122B, RS60123, RS60123B, RS60124, RS60124B, RS60125, RS60125B, RS60135, RS60135B, RS60137, RS60137B, RS60139, RS60139B, RS60140B, RS60141, RS60141B, RS60142, RS60142B, RS60144, RS60144B, RS60146, RS60146B, RS60147, RS60147B, RS60158B, RS60159B, RS81805R, RS81806, RS81815
Engine Type XK: XK51599, XK51603
Engine Type XN: XN51603

Setup and Installation

The radiator fan is a critical component of your engine's cooling system. Incorrect installation can lead to engine overheating and severe damage. It is highly recommended that installation be performed by a qualified mechanic or an individual with extensive experience in engine repair.

Pre-Installation Checklist:

Verify that the replacement fan (part number 2485C546) matches the specifications and requirements for your specific Perkins engine model.
Ensure the engine is completely cool before beginning any work.
Disconnect the battery to prevent accidental starting or electrical shorts.
Gather all necessary tools, including wrenches, sockets, and a torque wrench.
Have a suitable container ready to catch any coolant that may spill.

Installation Steps (General Guidance):

Access the Fan: Depending on your engine model, you may need to remove shrouds, belts, or other components to gain clear access to the radiator fan.
Drain Coolant (if necessary): If the radiator or hoses need to be moved, drain the engine coolant into a clean container for reuse or proper disposal.
Remove Old Fan: Carefully unbolt the old fan from its mounting hub. Note the orientation of the fan blades before removal.
Inspect Components: Examine the fan clutch (if applicable) and mounting hub for any wear or damage. Replace if necessary.
Install New Fan: Position the new 2485C546 radiator fan onto the mounting hub, ensuring correct orientation. Secure it with the appropriate bolts. Tighten bolts to the manufacturer's specified torque settings.
Reassemble: Reinstall any removed shrouds, belts, or other components.
Refill Coolant: If coolant was drained, refill the system to the correct level with the recommended coolant type.
Reconnect Battery: Reconnect the vehicle's battery.
Test System: Start the engine and allow it to reach operating temperature. Monitor the engine temperature gauge and visually confirm that the fan engages and operates correctly. Check for any leaks.

Figure 1: Top view of the 2485C546 radiator fan, showing its seven-blade design and central mounting hub.

Close-up of the fan hub with four bolt holes — Figure 2: Close-up view of the fan's central hub, highlighting the four bolt holes for secure mounting.

Operation

The 2485C546 radiator fan operates automatically as part of the engine's cooling system. Its primary function is to draw air through the radiator core, dissipating heat from the engine coolant. The fan is typically controlled by a thermostat or engine control unit (ECU) which activates it when the engine temperature reaches a predetermined level, or when the air conditioning is engaged.

Normal Operation:

The fan will engage when the engine temperature rises above a set threshold.
It will also engage when the air conditioning system is active to aid in condenser cooling.
The fan should produce a consistent airflow and operate without excessive noise or vibration.

Maintenance

Regular inspection of the radiator fan and surrounding components is crucial for maintaining optimal engine cooling and preventing potential issues.

Recommended Maintenance Checks:

Visual Inspection (Monthly/Before Long Trips):
- Check fan blades for cracks, chips, or damage. Damaged blades can cause imbalance and lead to premature failure.
- Ensure the fan is securely mounted and all bolts are tight.
- Inspect the fan shroud for any damage or obstructions that could impede airflow.
- Remove any accumulated debris (leaves, plastic bags, etc.) from the fan blades and radiator fins.
Operational Check (Regularly):
- Listen for unusual noises (grinding, squealing, excessive vibration) when the fan is operating.
- Confirm the fan engages when the engine reaches operating temperature or when the A/C is turned on.
Coolant System Check: Ensure coolant levels are correct and the radiator is free of blockages.

Always perform maintenance checks with the engine off and cool, and the battery disconnected for safety.

Troubleshooting

If you experience issues with your engine's cooling, the radiator fan may be a contributing factor. Here are some common problems and potential solutions:

Common Issues:

Symptom	Possible Cause	Action
Engine Overheating	Fan not engaging, insufficient airflow, damaged fan blades.	Check fan operation, inspect blades for damage, ensure radiator is clear of debris. Verify electrical connections and fan control module.
Fan Not Spinning	Electrical fault (fuse, relay, wiring), faulty fan motor, seized fan bearing, faulty temperature sensor/ECU.	Check fuses and relays. Test fan motor directly if possible. Consult a professional for electrical diagnostics.
Excessive Noise or Vibration	Damaged or unbalanced fan blades, loose mounting, worn bearings in fan motor or fan clutch.	Inspect fan blades for damage. Ensure fan is securely mounted. If noise persists, consider professional inspection of fan motor/clutch.

For complex issues or if you are unsure about any diagnostic steps, it is recommended to seek assistance from a certified mechanic.

Specifications

Feature	Detail
Part Number (OEM NO.)	2485C546
Condition	New, Replacement
Item Weight	Approximately 1 kg
Overall Diameter	Approximately 40 cm (15.7 inches)
Central Hub Diameter	Approximately 10 cm (3.9 inches)
Central Bore Diameter	Approximately 3 cm (1.2 inches)
Bolt Hole Spacing (Adjacent)	Approximately 7.5 cm (3.0 inches) center-to-center
Number of Blades	7
Origin	Mainland China

Dimensional Reference Images:

Radiator fan with a ruler indicating an overall diameter of approximately 40 cm — Figure 3: Overall diameter measurement of the fan.

Caliper measuring the central hub diameter of the fan, approximately 10 cm — Figure 4: Central hub diameter measurement.

Caliper measuring the central bore diameter of the fan, approximately 3 cm — Figure 5: Central bore diameter measurement.

Caliper measuring the bolt hole spacing on the fan hub, approximately 7.5 cm center-to-center — Figure 6: Bolt hole spacing measurement.

User Tips

Verify Dimensions Carefully: Before purchasing or installing, always double-check the external diameter and other critical dimensions of the fan against your existing setup, especially if you have a thicker radiator or limited space. This ensures proper fitment and prevents interference.
Professional Installation Recommended: Due to the critical role of the radiator fan in engine cooling and the complexity of engine compartments, professional installation is highly recommended to ensure correct fitment and function.

Warranty and Support

Warranty Information:

This product comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects and material faults under normal use. It does not cover damage resulting from improper installation, misuse, accident, or unauthorized modifications.

Customer Support:

For technical assistance, warranty claims, or any questions regarding your 2485C546 Radiator Fan, please contact Widen Part Store:

WhatsApp: +8618768303936
Email: Sales@wdpart.com

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Perkins 2485C546