Product Description
**Milwaukee parts change not only by model# but also by serial number. Milwaukee's site lets you look up your tool's parts diagram.
Milwaukee Shift Knob Assembly
Model Number: 44-10-5264
The Milwaukee 44-10-5264 is a genuine OEM Shift Knob Assembly for the 5262-21 1 in. SDS Plus D-Handle Rotary Hammer. Milwaukee lists this part as the Shift Knob Assembly on the service parts bulletin, but the same bulletin refers to the component in its service procedures as the shift lever, so if you have seen it called a shift lever assembly you are looking at the same part. This is the red spring-loaded mode selector on the gearcase that lets the operator switch the hammer between rotary hammer drilling and hammer-only chipping. Internally the lever repositions the coupler on the reduction gear shaft, engaging or disengaging rotation to the spindle while the piston and striker mechanism continues to deliver percussive blows. It is a control that gets used constantly on a working hammer, and it takes abuse: the lever sits exposed at the front of the tool where it collects concrete dust and slurry, it is frequently forced between modes while the motor is still spinning, and the detent surfaces wear until the lever no longer holds a mode positively. Symptoms that call for replacement include a lever that will not stay in the selected position, one that feels gritty or refuses to travel its full arc, a broken or cracked lever body, or a hammer that drops out of rotary mode under load while the striker keeps firing.
Because Milwaukee Tool specifies replacement parts by both catalog number and serial number, always verify your tool's serial number against the official Milwaukee service parts diagram before placing your order, since running production changes can alter part compatibility within the same catalog number. The 44-10-5264 Shift Knob Assembly is documented at Figure 9 on bulletin 54-24-5262 for the 5262-21 with serial number G43A, with a quantity of (1) required. Take care not to confuse this with the other lever control on the same hammer: the Forward/Reverse Lever at Figure 30c is a separate part ordered as 45-34-0017, and it sits in the housing halves rather than on the gearcase. Note also that this part is not a component of the 14-46-5265 Rotary Hammer Maintenance Service Kit, so a technician doing a full service on this tool needs to order the shift knob assembly separately if the lever is worn. At reassembly, Milwaukee's lubrication notes direct that the O-ring on the shift lever be coated with grease, and the bulletin specifies Type Q2 grease (49-08-5355) and Type S2 grease (49-08-5262) for this hammer, both sold separately. After installing, verify function by running the clutch slip check with the lever positioned at the hammer-only icon; Milwaukee's published static slip values for this tool are a minimum of 150 in-lbs and a maximum of 240 in-lbs.
Features
- Genuine Milwaukee OEM service part, not an aftermarket substitute
- Red spring-loaded mode selector for the 5262-21 SDS Plus rotary hammer
- Switches the hammer between rotary hammer drilling and hammer-only chipping modes
- Repositions the reduction gear coupler to engage or disengage spindle rotation
- Restores positive detent feel so the tool holds its selected mode under load
- Also referred to as the shift lever assembly in Milwaukee service documentation
- Supplied as a factory-assembled unit for straightforward installation
- Direct-fit replacement requiring no modification or machining
- Corrects a hammer that drops out of rotary mode while the striker continues firing
- Documented at Figure 9 on Milwaukee service parts bulletin 54-24-5262
- Not included in the 14-46-5265 Maintenance Service Kit, so ordered separately at full service
- High-wear exposed control on hammers used in concrete dust and slurry
Specifications
- Manufacturer: Milwaukee Tool
- Part Number: 44-10-5264
- Official Description: Shift Knob Assembly
- Also Known As: Shift Lever Assembly
- Component Type: Mode Selector Control Assembly
- Primary Fitment: 5262-21 1 in. SDS Plus D-Handle Rotary Hammer, serial G43A
- Also Referenced On: Verify additional applications using Milwaukee's online parts lookup
- Parts Diagram Position: Figure 9, Bulletin 54-24-5262
- Quantity: Sold individually, (1) required per tool
- Part Type: Genuine Milwaukee OEM Replacement Assembly
Includes
- (1) Milwaukee 44-10-5264 Shift Knob Assembly
Milwaukee does not sub-number the components of this assembly on bulletin 54-24-5262, so it ships as supplied by the factory. The Lock Plate (44-90-1011, Figure 8d) and Lock Plate Spring (40-50-0870, Figure 8e) are NOT included and are ordered separately. Grease is NOT included and is sold separately - Milwaukee specifies Type Q2 (49-08-5355) and Type S2 (49-08-5262) for this hammer, and the bulletin directs that the O-ring on the shift lever be coated with grease at reassembly. Always verify by serial number using Milwaukee's online parts lookup before ordering.
