Sioux Tools IW750MP-6H

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ZCE818 Date 2020February18/E

IMPACT DRIVER SAFETY

Impact drivers can cause flying particles.

Proper eye protection must be worn at all times by tool user and bystanders.

Flying particles can cause eye injury.

Sockets, bits and adapters not made for power tools can break when used with power tools. Sockets, bits and adapters not made for

impact drivers can break when used with impact drivers.

Proper eye protection must be worn at all times by tool user and bystanders. Use only impact sockets, bits and adapters that are

in good condition. Keep hands away from sockets, bits and adapters. Failure of the workpiece, sockets or bits can cause high

velocity projectiles. Ensure that the workpiece is securely fixed.

Broken sockets, bits and adapters can cause injury.

Power tools generate noise.

Ear protection must be worn when tool noise level exceeds 85 dBA. We also recommend that ear protection be worn when the

tool noise level is below 85 dBA. See the tool’s information sheet for the noise level. High noise levels can cause hearing damage.

Damping may help keep workpiece from ringing. Keep the socket maintained to prevent an increase in noise and vibration.

Replace the socket to prevent an increase in noise. Ensure that the impact driver's muffler is still installed.

Prolonged exposure to noise can cause hearing loss.

Power tools vibrate.

Excessive vibration can cause injury. If numbness, tingling, pain or whitening of the skin occurs, stop using tool and consult a

physician. See the tool’s information sheet for the vibration level. Wear warm clothing when working in cold conditions. Keep

your hands warm and dry. Maintain the impact driver as recommended to prevent an increase in vibration levels. Do not use

worn or ill-fitting sockets or extensions, as this is likely to cause a substantial increase in vibration levels. Support the tool in a

stand, tensioner or balancer if possible. Do not hold the tool too tightly. Sleeve fittings should be used where practicable. Keep

the hands away from the sockets, extensions and rotation components.

Prolonged exposure to vibration can cause injury.

Worn, chipped, or cracked sockets, bits, and adapters can break.

Do not use worn, chipped, or cracked sockets, bits, or adapters.

Broken sockets, bits and adapters can cause injury.

Impact drivers present a risk of entanglement.

Keep loose hair away from power tools and accessories. Keep hands away from moving parts of the tool and accessories. Do not

wear jewelry, loose clothing, or neckwear around power tools. Keep work area clear of cleaning rags and all items that could become

entangled with the tool. Entanglement hazards can result in choking, scalping and lacerations if loose clothing, jewelry, neck wear,

hair or gloves are not kept away from tool. Gloves can become entangled with the rotating drive, causing broken or severed fingers.

Rotating drive sockets an drive extensions can easily entangle rubber-coated or metal-reinforced gloves. Do not wear loose fitting

gloves with cut or frayed fingers. Never hold the drive, socket or drive extension. Keep hands away from rotating drive.

Entanglements can cause injuries.

Driving screws creates dust.

Use respiratory protection. Dust and fumes generated by the impact driver can cause ill health. Consider both dust created

by the tool and existing dust disturbed by the tool exhaust. Direct the impact driver's exhaust to minimize disturbance of dust.

Control dust at the point of emission. All integral features or accessories for the collection, extraction, or suppression of dust

and fumes should be maintained.

Breathing dust created when driving screws can cause injury.

This tool is not insulated for contact with electric power sources.

Do not use near live electric circuits. When driving screws into walls, be aware that they may have hidden electric wires.

Electric shock can cause injury.

This tool is not intended for use in a flammable or explosive atmosphere.

Do not use this tool in a flammable or explosive atmosphere.

Explosions and fire can cause injury.

Sudden and unexpected tool movement can occur when the fastener bottoms on the work.

Be sure your body position allows you to have control of the tool at all times. Make sure your footing is secure. Consult

manufacturer for proper reaction bar if movement is excessive.

Form ZCE818

Date 2020February18/E

Page 1 of 34

SAVE THESE INSTRUCTIONS!

Read and understand these instructions before operating this tool.

INSTRUCTIONS & PARTS LIST FOR IW750MP-6H, IW750MP-6P,

IW750MP-6R IMPACT DRIVERS

SERIAL“A”

WARNING

When used improperly power tools can create hazardous situations.

Everyone using, maintaining, changing accessories or working near this tool must read, understand and follow these Safety Instructions!

Improperly used power tools can cause injury or death.

250 Snap-on Drive • PO Box 1596 • Murphy, NC 28906 • USA • Phone: 828-835-9765 •www.siouxtools.com

Original

Instructions

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Overview

Technical Specifications
Noise and Vibration Readings (ISO Standard 15744 and 28927-1:2009)
Air Supply
Lubrication
Usage Features
Maintenance Features

The IW750MP-6H, IW750MP-6P, and IW750-6R Impact Drivers, Series "A", are handheld, hand-operated pneumatic tools designed for the tightening and loosening of threaded fasteners within the manufacturer's specified range. These tools are intended for use with appropriate 3/4" (19.05mm) square female drive impact-type sockets. The use of suitable extension bars, universal joints, and socket adapters between the square output drive of the impact wrench and the square female drive of the socket is permissible. The tool should not be used for any other purpose without consulting the manufacturer or authorized supplier, as this could be dangerous. Specifically, it should never be used as a hammer to dislodge or straighten cross-threaded fasteners, nor should it be modified for other uses, even as a nutrunner.

Technical Specifications:

The device's performance is primarily governed by three factors: input air pressure, the duration of operation on the joint (typically 3 to 5 seconds for average tension requirements), and the air regulator setting for a given joint, pressure, and operating time. The air regulator on the housing (10) can be used to regulate output power if no other control means are available. However, it is strongly recommended to use an external pressure regulator, ideally as part of a filter/regulator/lubricator (FRL) unit, to control the inlet air pressure and thus the tension applied to the threaded fastener joint.

Noise and Vibration Readings (ISO Standard 15744 and 28927-1:2009):

Sound Pressure (dBA): 98.9
Sound Power (dBA): 109.9
Noise Uncertainty (dBA): 3
Vibration m/s^2: 19.86
Vibration Uncertainty m/s^2: 2.44

Air Supply:

A clean, lubricated air supply delivering a measured air pressure of 90 psig/6.2 bar at the tool is required when the trigger is fully depressed and the air regulator is in its maximum open flow position. The recommended air supply hose has a 3/8" (10mm) I.D. If an extension hose is needed, a 1/2" (13mm) I.D. hose with couplings of at least 3/8" (10mm) I.D. should be used. The tool should be connected to the air supply as shown in Figure 1, incorporating an easy-to-reach and operate air shut-off valve. An air filter, regulator, and lubricator (FRL) system is strongly recommended to provide clean, lubricated air at the correct pressure.

Lubrication:

For maximum performance and tool life, an air line lubricator set to deliver 4 drops per minute is recommended, using SIOUX No. 288 Air Motor Oil. If an air line lubricator is not used, daily oiling with 2-4 drops of air motor oil before use, followed by 10-20 seconds of tool operation, is recommended. The drive gears should be lubricated with Castrol Molub-Alloy 860/460-2ES grease via the grease fitting (9) after every 100 hours of operation.

Usage Features:

Torque Adjustment: There is no consistent, reliable torque adjustment on this type of impact wrench. However, the air regulator can be used to adjust torque to approximate the tightness of a known threaded joint. To set the desired torque, select a nut or screw of known tightness, size, thread pitch, and condition. Turn the air regulator to a low position, apply the wrench to the nut, and gradually increase power until the nut moves slightly in the direction it was originally set. Note this regulator setting for future use.
Fastener Tightening: For non-critical torque values, run the nut flush and then tighten an additional quarter to half turn (slightly more if gaskets are being clamped).
Disassembly: For additional power during disassembly, turn the regulator to its fully open position.
Capacity: The impact wrench is rated for a 3/4" bolt size. This rating must be downgraded for spring U-bolts, tie bolts, long cap screws, double-depth nuts, heavily rusted conditions, and spring fasteners, as these absorb significant impact power.
Forward/Reverse Control: Controlled by a reverse switch (24, 38) located on top of the trigger and back of the housing. Pressing switch (38) engages reverse mode; pressing switch (24) engages forward mode. Ensure the switch is in the proper position before starting the tool.
Speed Control: The air regulator on the back of the housing (10) controls tool speed. For forward operation, it's a 3-position regulator ("3" being highest, "1" lowest). For reverse operation, no regulator is applied, and it's fixed to the highest torque setting.
Air Inlet Bushing: The tool incorporates an air inlet bushing (52). Periodically check for blockages, which reduce speed and power. To clean, remove the bushing from the motor housing (10).

Maintenance Features:

Contaminant Removal: Water, dust, and other airline contaminants can cause rust and vane sticking. For long periods between uses, flush the tool with 5 ml of oil and run for 10 seconds to remove contaminants and reduce rust formation.
Disassembly/Assembly: Disconnect the tool from the air supply. Follow the detailed instructions for removing components such as hex bolts (22, 37), screws (39, 14), hammer case (1), o-rings (34, 41, 43, 51), spring bushing (33), trigger (53), rear bearing plate (30), rotor (28), blades (27), spring pin, air inlet (52), exhaust deflector (49), spring (47), hammer frame (7), gasket (8), hammer pins (5), anvil (4), and hammers (6).
Reassembly: Clean and inspect all parts for wear, replacing any worn parts with manufacturer- or authorized distributor-supplied parts. All parts must be dry. Ensure bearings run smoothly. Reassemble all parts in reverse order. Pump grease into the grease fitting (9) using a mini grease gun. Connect the tool to a suitable air supply (preferably 90 psi) and run it slowly for 5 seconds to circulate the grease.