VW Connect

How To Perform A Daily Inspection On A Caterpillar 302.7D Mini Excavator

Overview

Daily machine walkaround instructed by Eric Smith from Empire Cat. Walkaround inspections should be performed in the same order every day to ensure nothing is missed. Here we cover what to look for during a walkaround on a Caterpillar 302.7D Mini Excavator.

The Engine Compartment

Very similar to checking the oil on a car, use the dipstick to ensure the machine is at proper oil levels.

Check the air filter by removing the end cap.

  • Inspect for heavy material and debris.
  • Tap the filter on the tracks to clean loose materials.
  • Avoid blowing the air filter with compressed air, as this causes more damage than good.
  • Check the air filter restriction indicator, if its red, the air filter needs to be replaced.
  • The inner air filter is only to be replaced, do not clean.

Inspect for damage and check wires.

Inspect hoses to ensure they are secure and not leaking.

Inspect the hydraulic pump and hoses for leaks and damage.

Inspect the exhaust assembly to make sure all hardware is secure and no damage is present.

Check hydraulic oil levels by parking the excavator on a level surface with the boom extended.

  • Check for leaks, debris, and damage to the cooling fins.
  • Check the coolant overflow reservoir and make sure it’s between full and low.

Inspect the battery cables for corrosion.

Inspecting the Machines Boom and Stick Assembly

Where there’s a pin there’s a rotation point. Grease these areas daily.

Check the condition of hydraulic hard lines and hoses for leaks and damage.

Check the cylinders for hydraulic oil leaks and damage to the cylinder rods.

Inspect the bucket for adequate tooth length left.

Inspecting the Blade Area

Inspect the blade cylinder for hydraulic leaks and damage.

Check the housing bolts to make sure none are missing or loose.

Inspecting the Excavators Tracks

  • Look for gouges and metal showing
  • Check the tracks tension, loose tracks should be repaired before use

Inspect the final drive assembly for leaks and the condition of the sprocket

Inspecting the Cab

Check the cabs structure for damage.

Do they move freely? Are they damaged?

Check the seatbelt for working condition

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