Makita UC4550A Cleaning the guide bar and lubricating the return sprocket, Cleaning the oil guide

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After sharpening the chain, check the height of the depth gauge using the chain gauge tool (optional accessory).

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Remove any projecting material, however small, with a special flat file (optional accessory).

Round off the front of the depth gauge again.

Cleaning the guide bar and lubricating the return sprocket

CAUTION:

Always wear safety gloves for this task. Burrs present a risk of injury.

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Check the running surfaces of the bar regularly for damage. Clean using a suitable tool, and remove burrs if necessary.

If the chain saw receives frequent use, lubricate the return sprocket bearing at least once a week. Before adding new fresh grease, carefully clean the 2 mm hole on the tip of the guide bar, then force a small quantity of multi-purpose grease (optional accessory) into the hole.

Cleaning the oil guide

1. Oil guide groove

2. Oil feed hole

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Clean the oil guide groove and the oil feed hole in the bar at regular intervals.

New saw chains

Use two or three saw chains alternately, so that the saw chain, sprocket and running surfaces of the bar wear evenly.

Turn the bar over when changing the chain so that the bar groove wears evenly.

CAUTION:

Only use chains and bars which are approved for this model of saw (refer to "SPECIFICATIONS").

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1. Sprocket

 

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Before fitting a new saw chain, check the condition of the sprocket.

CAUTION:

A worn sprocket damages a new saw chain. Have the sprocket replaced in this case.

Always fit a new locking ring when replacing the sprocket.

Maintaining the chain and run-down brakes

The braking systems are very important safety features. Like any other component of the chain saw, they are subject to a certain degree of wear. They must be inspected regularly by MAKITA authorized service centers. This measure is for your own safety.

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Contents Electric Chain Saw Symbol SpecificationsPower supply English Original instructionsGeneral Power Tool Safety Warnings Chain saw safety warnings Proper use Additional Safety RulesPersonal protective equipment Protection against electric shockKickback Maintenance Safety featuresTransport and storage First aidFor Model UC3051A, UC3551A, UC4051A, UC4551A Designation of PartsFor Model UC3050A, UC3550A, UC4050A, UC4550A Removing or installing sprocket cover AssemblyRemoving or installing saw chain For nut modelsAdjusting dial Switch action Adjusting saw chain tensionOperation Engaging extension cordChecking the chain tension Checking the switch actionChecking the chain brake Adjusting the chain lubricationChecking the chain oiler Checking the run-down brakeLimbing BuckingBurrowing and parallel-to-grain cuts FellingChecking the plastic housing MaintenanceCleaning the chain saw Sharpen the saw chain when Sharpening the saw chainSharpening criteria File and file guidingCleaning the oil guide Cleaning the guide bar and lubricating the return sprocketNew saw chains Maintaining the chain and run-down brakesStoring tool Replacing carbon brushesPossible cause Remedy Trouble ShootingOptional Accessories Makita Corporation