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Documents & Manuals

Find all the essential guides in one place.

Tensioning Guide
Belt-diagram
C-120 pulleys
+ 13 more

Work Order Templates

Pre-built workflows to keep your asset running smoothly.

Daily Electrical System Inspection
Replace Roller and Pulley
Install Engine B-120
+ 29 more

Procedures

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Motion Industries
Applied Industrial Technologies
Electrical Brothers
+ 5 more

Parts

Access the parts list for your equipment in MaintainX.

Drive Motor
B2 Rollers
Tensioning System
+ 40 more

Case Loader 621C

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Maintenance Plans for Case Loader Model 621C

Integrate maintenance plans directly into your work orders in MaintainX.

2000 Hourly / 1 Yearly Loader Maintenance

Change The Hydraulic Oil And Clean The Screen

Hydraulic oil changed?

Screen cleaned?

Drain, Flush And Refill The Engine Cooling System

Engine cooling system drained?

Engine cooling system flushed?

Engine cooling system refilled?

Replace The Air Cleaner Elements

Air cleaner elements replaced?

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As Required Loader Maintenance

Air Cleaner Warning Lamp Illuminates

Service Air Cleaner Precleaner

Transmission Filter Restriction Warning Lamp Illuminates

Radiator Coolant Level Warning Lamp Illuminates

Hydraulic Filter Warning Lamp Illuminates

Check The Fan Belt Condition

Check The Air Conditioning Drive Tension (If Equipped) Not Shown

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50 Hourly Loader Maintenance

Check The Coolant Reservoir Fluid Level

Check The Transmission Oil Level (Engine Running And Oil Warm)

Check The Hydraulic Reservoir Fluid Level

Lubricate The Rear Axle Trunnion Pivots (2 Fittings)

Lubricate The Bucket And Bellcrank Pivot Points (10 Fittings) 621C/721C/ Xt

Lubricate The Center Drive Shaft Slip Joint (1 Fitting)

Lubricate The Bellcrank And Bucket Pivots (6 Fittings) 621C/721C Z-Bar

Sign off on the 50 Hourly Loader Maintenance

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Engine Removal

Engine Removal:

1. Park the machine on a level surface and lower the loader bucket to the floor. Stop the engine and apply the parking brake.

2. Let the engine cool. Loosen and remove the radiator cap. Drain the cooling system. The drain valve is located at the right front side of the radiator. The cooling system holds 26.5 litres (28 U.S. quarts) of coolant.

3. Open the access door on each side of the engine compartment.

4. Turn the battery disconnect switch to the OFF position.

5. Open the grille.

6. Loosen and remove the precleaner. If the air cleaner is equipped with a cap, loosen the clamp and remove the cap.

7. Remove the plugs and loosen and remove the cap screws, lock washers, and flat washers that fasten the hood.

8. Connect suitable lifting equipment to the hood and remove the hood.

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Radiator Removal

Machine parked on a level surface and loader bucket lowered to the floor

Engine stopped and parking brake applied

Engine cooled and radiator cap removed

Amount of coolant drained from the cooling system