This document provides instructions and specifications for the Milwaukee K750 S and K700 S rotary hammers, designed for heavy-duty applications.
Function Description
The Milwaukee K750 S is a versatile rotary hammer capable of hammer-drilling, chiselling, and drilling. The K700 S is a percussion hammer specifically designed for chiselling in stone and concrete. These tools are engineered for professional use, offering robust performance for demanding tasks in construction and demolition.
Important Technical Specifications
K750 S Rotary Hammer
- Production Code: 4632 30 04 XXXXXX MJJJJ
- Rated Input: 1550 W
- Output: 775 W
- Impact Energy per Stroke (EPTA-Procedure 05/2009): 11.9 J
- No-load Speed: 300 min⁻¹
- Speed Under Load Max: 300 min⁻¹
- Rate of Percussion Under Load Max: 2700 min⁻¹
- Chuck Neck Diameter: 66 mm
- Drilling Capacity in Concrete: 50 mm
- Tunnel Bit in Concrete, Bricks and Limestone: 80 mm
- Core Cutter in Concrete, Bricks and Limestone: 150 mm
- Weight (EPTA-Procedure 01/2014): 8.2 kg
- Noise Information (EN 62841):
- Sound Pressure Level / Uncertainty K: 96 dB(A) / 3 dB(A)
- Sound Power Level / Uncertainty K: 107 dB(A) / 3 dB(A)
- Vibration Information (EN 62841):
- Hammer-drilling in concrete: 18.4 m/s² / 1.5 m/s²
- Chiselling: 13.0 m/s² / 1.5 m/s²
K700 S Percussion Hammer
- Production Code: 4632 40 04 XXXXXX MJJJJ
- Rated Input: 1550 W
- Output: 775 W
- Impact Energy per Stroke (EPTA-Procedure 05/2009): 11.9 J
- No-load Speed: 300 min⁻¹
- Speed Under Load Max: 300 min⁻¹
- Rate of Percussion Under Load Max: 2700 min⁻¹
- Chuck Neck Diameter: 66 mm
- Drilling Capacity in Concrete: 50 mm
- Tunnel Bit in Concrete, Bricks and Limestone: 80 mm
- Core Cutter in Concrete, Bricks and Limestone: 150 mm
- Weight (EPTA-Procedure 01/2014): 8.2 kg
- Noise Information (EN 62841):
- Sound Pressure Level / Uncertainty K: 96 dB(A) / 3 dB(A)
- Sound Power Level / Uncertainty K: 107 dB(A) / 3 dB(A)
- Vibration Information (EN 62841):
- Hammer-drilling in concrete: 18.4 m/s² / 1.5 m/s²
- Chiselling: 13.0 m/s² / 1.5 m/s²
Both models are Class II tools, meaning protection against electric shock does not rely on basic insulation only, but includes additional safety precautions such as double or reinforced insulation. They are designed for single-phase AC current and system voltage indicated on the rating plate. For wet rooms or outdoor use, connection via a residual current device (FI, RCD, PRCD) of 30mA or less is recommended.
Usage Features
Tool Operation:
- Accessory Insertion: For SDS-max accessories, apply grease to the shank before insertion. Push the accessory into the chuck until it locks. To remove, pull back the chuck sleeve and withdraw the accessory.
- Auxiliary Handle: The auxiliary handle can be adjusted for optimal grip and control. For large drill diameters, it should be fastened at a right angle to the main handle.
- Power On/Off: The tool is started by pressing the trigger and stopped by releasing it. The K700 S also features a START/LOCK function for continuous operation, which can be disengaged by pressing the trigger again.
- Mode Selection:
- K700 S & K750 S: The mode selector allows switching between drilling (0) and hammer-drilling/chiselling (T).
- K750 S: An additional mode for chiselling with rotation stop (ET) is available.
- Anti-Vibration System (AVS): Both models feature an AVS to reduce vibrations on the handle, enhancing user comfort and reducing fatigue.
- Electronic Control: The tools incorporate electronic features for consistent performance.
- Cold Start: If the tool has been stored in cold conditions, the lubrication may stiffen. To warm it up, insert a bit or chisel, run the tool against a scrap piece of concrete, and repeatedly pull and release the trigger for 15 seconds to 2 minutes until it hammers normally.
Safety Instructions:
- Personal Protective Equipment: Always wear ear protectors, eye protection, a suitable dust protection mask, and protective gloves. Heavy long trousers and substantial footwear are also recommended.
- Auxiliary Handles: Always use the auxiliary handles supplied with the tool.
- Insulated Gripping Surfaces: Hold the power tool by insulated gripping surfaces when performing operations where the cutting accessory may contact hidden wiring or its own cord.
- Long Drill Bits: Start drilling at low speed with the bit tip in contact with the workpiece. Apply pressure only in direct line with the bit and avoid excessive pressure to prevent bending or breakage.
- Workpiece Stability: Clamp your workpiece with a clamping device to prevent severe injury and damage.
- Dust Management: Do not inhale dust produced by the tool. Do not machine materials that present a danger to health (e.g., asbestos).
- Stalling: Switch off the device immediately if the insertion tool stalls. Do not switch it on again while stalled to avoid sudden recoil. Determine and rectify the cause of stalling.
- Hot Tools/Accessories: Insertion tools can become hot during use. Wear protective gloves when handling them and when setting the device down.
- Mains Lead: Keep the mains lead clear from the working range and always lead the cable away behind you.
- Hidden Utilities: When working in walls, ceilings, or floors, take care to avoid electric cables, gas, or water pipes.
- Residual Risk: Despite safety measures, residual risks such as injury from vibration, hearing injury from noise, injury from flying debris, and inhalation of toxic dusts remain. Operators should restrict working time and exposure, wear appropriate PPE, and ensure proper ventilation.
Maintenance Features
- Cleaning: The ventilation slots of the machine must be kept clear at all times to ensure proper cooling and prevent overheating.
- Carbon Brushes: The tool features an indicator for worn carbon brushes. If the carbon brushes are worn, they should be exchanged, and the tool should be sent to after-sales service to ensure long service life and top performance.
- Supply Cord: If the supply cord is damaged, it must only be replaced by a repair shop appointed by the manufacturer to avoid hazardous situations.
- Spare Parts and Accessories: Use only Milwaukee accessories and Milwaukee spare parts. For components not described in the manual, contact Milwaukee service agents.
- Technical Documentation: An exploded view of the tool can be ordered by stating the machine type and the six-digit number on the label, either from local service agents or directly from Techtronic Industries GmbH.
The manual emphasizes the importance of reading all safety warnings and instructions to prevent electric shock, fire, and serious injury. It also highlights the significance of proper maintenance and the use of genuine parts for optimal performance and safety.
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