Milwaukee SDS+ Drill IssuesUpdated 3 hours ago

SDS Bit Won't Lock Into the Chuck

One of the most common SDS drill faults.

Possible Causes

• Dirt within the chuck assembly
• Lack of lubrication
• Worn locking balls
• Damaged SDS shank

Resolution

• Clean the chuck thoroughly.
• Apply suitable SDS grease.
• Inspect the bit shank for damage.
• Replace worn chuck components if necessary.

SDS Bit Gets Stuck

The accessory becomes difficult or impossible to remove.

Possible Causes

• Dust build-up
• Insufficient lubrication
• Damaged chuck mechanism
• Worn retaining components

Resolution

• Apply a suitable lubricant.
• Operate the chuck sleeve repeatedly.
• Remove debris from the chuck assembly.
• Replace damaged components if required.

Weak Hammer Action

The tool rotates normally but struggles to drill masonry.

Possible Causes

• Worn piston assembly
• Seal wear
• Mechanical wear
• Insufficient internal lubrication

Resolution

• Ensure hammer mode is selected.
• Check for unusual operating noises.
• Arrange servicing if hammer performance has deteriorated significantly.

Excessive Vibration

Strong vibration can indicate wear within the drill.

Possible Causes

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

Resolution

• Replace damaged accessories.
• Check for movement within the chuck assembly.
• Have the gearbox and bearings inspected if vibration persists.