Case 821G 921G Wheel Loader Engine cooling system Service Manual

Case 821G 921G Wheel Loader Engine cooling system Service Manual

Case 821G & 921G Wheel Loader Tier 4B Engine cooling system Service Manual

The Case 821G and 921G are models of wheel loaders produced by Case Construction Equipment. The engine cooling system in these machines is responsible for maintaining the optimal operating temperature of the engine to prevent overheating and ensure efficient performance.

While I don’t have specific details about these particular models since my knowledge cutoff is in September 2021, I can provide you with general information about servicing an engine cooling system.

Here are some steps typically involved in servicing the engine cooling system:

1. Case 821G 921G Coolant Level Check: Start by checking the coolant level in the radiator or coolant reservoir. The coolant should be at the recommended level, typically indicated by a fill line on the reservoir or radiator. If the coolant level is low, it should be topped up with the appropriate coolant mixture recommended by the manufacturer.

2. Coolant Quality Check: Inspect the coolant for any signs of contamination or degradation. The coolant should appear clean and free of debris. If the coolant is discolored, has a foul odor, or contains contaminants, it may need to be drained and replaced.

3. Pressure Test: Perform a pressure test on the cooling system to check for any leaks. This involves using a pressure testing tool to pressurize the system and checking for any drop in pressure over time. If a leak is detected, it should be repaired promptly to prevent coolant loss and potential engine damage.

4. Radiator and Cooling Fins Cleaning: The radiator and cooling fins can accumulate dirt, debris, and insects over time, reducing their effectiveness. Clean the radiator and cooling fins using compressed air or a soft brush. Be gentle to avoid damaging the fins. Ensure proper airflow through the radiator for efficient cooling.

Case 821G 921G Wheel Loader Engine cooling system Service Manual

5. Fan and Belts Inspection: Inspect the cooling fan and belts connected to the engine cooling system. The fan should rotate freely and the belts should be in good condition, with the correct tension. Replace any worn or damaged belts and ensure the fan is functioning properly.

6. Thermostat Check: The thermostat regulates the flow of coolant through the engine. If there are issues with engine overheating, the thermostat may need to be inspected and tested. A faulty thermostat should be replaced.

7. Case 821G 921G Regular Maintenance: Follow the manufacturer’s recommended maintenance schedule for the engine cooling system. This may include periodic coolant flushes, replacement of hoses and clamps, and other specific maintenance tasks.


Case 821G 921G Wheel Loader Engine cooling system Service Manual
Case 821G 921G Wheel Loader Engine cooling system Service Manual
Price: $29.99

Case 821G 921G Wheel Loader Engine cooling system Service Manual




[10.001] Engine and crankcase
[10.202] Air cleaners and lines
[10.500] Selective Catalytic Reduction (SCR) exhaust treatment
[10.400] Engine cooling system
[10.414] Fan and drive
[10.310] Aftercooler
[10.304] Engine lubrication system

[21.113] Powershift transmission
[21.155] Powershift transmission internal components
[21.700] Torque converter

Four-Wheel Drive (4WD) system
[23.314] Drive shaft

Front axle system
[25.100] Powered front axle
[25.102] Front bevel gear set and differential
[25.108] Final drive hub, steering knuckles, and shafts

Rear axle system
[27.100] Powered rear axle
[27.106] Rear bevel gear set and differential
[27.120] Planetary and final drives

Brakes and controls
[33.202] Hydraulic service brakes
[33.110] Parking brake or parking lock

Hydraulic systems
[35.000] Hydraulic systems
[35.300] Reservoir, cooler, and filters
[35.106] Variable displacement pump
[35.359] Main control valve
[35.357] Pilot system
[35.752] Hydraulic fan drive cooling system
[35.701] Front loader arm hydraulic system
[35.723] Front loader bucket hydraulic system
[35.734] Tool quick coupler hydraulic system

Frames and ballasting
[39.100] Frame

[41.101] Steering control
[41.200] Hydraulic control components
[41.216] Cylinders
[41.910] Auxiliary steering

[44.511] Front wheels
[44.520] Rear wheels

Cab climate control
[50.200] Air conditioning

Electrical systems
[55.100] Harnesses and connectors
[55.301] Alternator
[55.302] Battery
[55.988] Selective Catalytic Reduction (SCR) electrical system
[55.989] Exhaust Gas Recirculation (EGR) electrical system
[55.512] Cab controls
[55.530] Camera

Case 821G 921G Wheel Loader Engine cooling system