Bosch SDS+ Drill ProblemsUpdated 4 hours ago

SDS Bit Won't Lock into the Chuck

This is one of the most common SDS drill issues.

Possible Causes

• Dirt or debris in the chuck
• Insufficient lubrication
• Worn locking balls
• Damaged SDS bit shank

Resolution

• Clean the chuck thoroughly.
• Apply suitable SDS grease.
• Check the accessory shank for wear.
• Replace worn chuck components if necessary.

SDS Bit Stuck in the Tool

An SDS accessory cannot be removed from the chuck.

Possible Causes

• Dirt build-up
• Lack of lubrication
• Damaged retention mechanism
• Worn chuck components

Resolution

• Apply a suitable lubricant.
• Operate the locking sleeve repeatedly.
• Clean the chuck assembly carefully.

Replace damaged chuck components if needed.

Weak Hammer Action

The drill rotates but struggles to drill effectively into masonry.

Possible Causes

• Worn piston assembly
• Internal seal wear
• Mechanical damage
• Lack of lubrication

Resolution

• Ensure hammer mode is selected.
• Listen for unusual sounds during operation.
• Arrange servicing if hammer performance remains poor.

Excessive Vibration

Unusual vibration can indicate internal wear.

Possible Causes

• Damaged bearings
• Worn hammer components
• Bent SDS accessory
• Gearbox wear

Resolution

• Inspect and replace damaged accessories.
• Check for excessive play in the chuck.

Arrange inspection of bearings and gearbox if vibration continues.