Caterpillar Mini Hydraulic Excavator 309 CR

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The Caterpillar Mini Hydraulic Excavator 309 CR is a versatile and compact machine designed for efficient digging and excavation tasks. Known for its reliability and performance, this model is ideal for construction and landscaping projects, providing excellent maneuverability and power in tight spaces.

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Manual for Caterpillar Mini Hydraulic Excavator 309 CR

MAINTENANCE RESOURCES

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Documents & Manuals

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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
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Parts

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Drive Motor
B2 Rollers
Tensioning System
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Caterpillar Mini Hydraulic Excavator 309 CR

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Maintenance Plans for Caterpillar Mini Hydraulic Excavator Model 309 CR

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1000 Hourly Mini Hydraulic Excavator Maintenance

Battery - Clean

Steps to clean the battery

Battery cleaned properly?

Battery Hold-Down - Tighten

Steps to tighten the battery hold-down

Battery hold-down tightened properly?

Belts - Replace

Steps to replace the belts

Belts replaced properly?

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100 Hourly Mini Hydraulic Excavator Maintenance

Swing Bearing - Lubricate

Swing Gear - Lubricate

Sign off on the 100 Hourly Mini Hydraulic Excavator Maintenance

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When Required Mini Hydraulic Excavator Maintenance

Battery or Battery Cable - Inspect/Replace

Recycle the Battery

Blade Cutting Edges - Inspect/Replace

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2000 Hourly Mini Hydraulic Excavator Maintenance

Final Drive Oil - Change

Position one final drive so that oil drain plug is at the bottom.

Remove oil drain plug, level plug, and filler plug. Allow the oil to drain into a suitable container.

Clean the plugs and inspect the plugs. Replace a worn plug or a damaged plug.

Apply pipe sealant to oil drain plug, level plug, and filler plug.

Install drain plug.

Add oil through the opening of filler plug.

Fill the final drive to the bottom of the opening for level plug.

Install level plug and filler plug.

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Initial 500 Hours Mini Hydraulic Excavator Maintenance

Final Drive Oil - Change

1. Position one final drive so that oil drain plug (1) is at the bottom.

Note: Refer to Operation and Maintenance Manual, “General Hazard Information” for information on containing fluid spillage.

2. Remove oil drain plug (1), level plug (2), and filler plug (3). Allow the oil to drain into a suitable container.

3. Clean the plugs and inspect the plugs. Replace a worn plug or a damaged plug.

4. Apply pipe sealant to oil drain plug (1), level plug (2), and filler plug (3).

5. Install drain plug (1).

6. Add oil through the opening of filler plug (3).

Note: Overfilling the final drive will cause the seals to move out of place in the travel motor. Hydraulic oil or water may then enter the final drive and contaminate the final drive.

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