How to Grease Bosch Hammer Drill – Maintenance Guide

How to Grease Bosch Hammer Drill

I depend on power tools to help me get my work done, so I must do all that it takes for them not only to stay operational but also to last. What is more frustrating than having to replace one of your tools not working properly because its maintenance has been neglected?

So today I am going to give you a little find list on how to secure your pros and Bosch hammer framework working for quite a scope of time. Lubing up your Bosch DrillThis busy bee could use some grease, so when how, and where to lube it

Why Greasing Matters

Lubrication serves some crucial functions:

• Reduces friction and wear between moving metal parts
• Prevents overheating that can damage components
• Keeps out abrasive dust and debris
• Quiets noisy operation
• Allows the chuck and drive to spin freely and powerfully

When grease degrades, dries out, or gets contaminated, your drill suffers. Lack of lubrication is a leading cause of failure in hammer drills. So don’t skip this essential maintenance step!

Determining When to Grease

Instead of greasing on a fixed schedule, I check the condition of my drill and lubricate as needed. Here are signs it’s time to lubricate:

• The chuck or drive sounds squeaky or feels gritty when operating
• The drill seems to lack power or bogs down easily
• I notice more vibration or noise during use
• It’s been a while since the last lubrication
• I’ve used the drill heavily for 40+ hours since greasing
• The drill got very dusty or dirty during use

Periodic greasing every 40-60 hours of runtime is a good general guideline. But your ears and hands are the best indicators of when a lubrication is needed.

What Type of Grease to Use

Not just any grease will do for a hammer drill. I prefer greases with the following properties:

• A lithium or lithium-complex formula made for heavy machinery
• NLGI grade 2 for the right viscosity and pumping ability
• Molybdenum disulfide (also called moly) for extra wear protection
• High-pressure additives to stand up to the intense friction inside a hammer drill

After testing different brands, I’ve settled on Super Lube synthetic grease as my go-to for my Bosch. It checks all the boxes. Always check Bosch’s recommendations and avoid automotive greases. The wrong grease could damage components.

Where to Grease on a Bosch Hammer Drill

Bosch drills have three key areas that need lubrication:

The Chuck – Disassemble and grease the chuck jaws and body where metal contacts metal. This allows the chuck to open and close smoothly.

The Drive Gear – Lubricate the gear teeth that transfer power to the hammer mechanism. Reduces wear and noise.

The Rotor – For SDS models, grease where the rotor spins inside the bearings. Keeps the hammering action silky smooth. Greasing just these friction points is sufficient. Over-greasing can cause problems, so I stay focused on these wear areas.

Greasing Best Practices

Based on my experience, here are some tips for getting the greasing job done right:

• First, clean away any old, dried grease or dirt with a rag to create a clean surface for new grease.
• Remove the bit and disconnect the power – safety first!
• Disassemble the chuck if needed to access the grease points. Refer to your model’s manual.
• Apply fresh grease thinly and evenly using a small brush or cotton swab.
• Reassemble and test the drill before regular use.
• Avoid getting grease on plastic components where it’s not needed.
• Clean up any excess grease when done to avoid a mess.

Proper lubrication only takes a few minutes but pays dividends in added years of service from your Bosch. It’s worth taking the time to do it right.

Troubleshooting Issues

If you’re having problems with lubrication, here are some things to check:

No improvement after greasing?

 The old grease may need to be fully cleaned out before fresh grease can do its job.

Noise gets worse?

 Stop using the drill and consult an authorized repair center – something may be worn out or damaged.

Does the drill feel sluggish? 

The grease may be too thick. Try a lighter NLGI 1 grease.

Is grease oozing out? 

You likely applied too much. Wipe away the excess and apply a thinner coat next time.

Chuck hard to assemble?

 The grease may be too thick. Clean it out and use lighter grease.

Does grease look contaminated? 

It’s time to clean it out and start fresh. Frequent lubrication keeps contaminants at bay. Proper lubricant selection, cleaning, and application techniques can solve most issues. But when in doubt, let the Bosch experts handle it.

Final Thoughts

Well, that wraps up my tips for keeping that Bosch drill running smoothly! I know not everyone enjoys routine maintenance. But a few minutes of greasing can save you hours of frustration and costly repairs. I hope you found these greasing tips helpful.