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Summary of Contents for Snap-On PTM370
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Page 4: Table Of Contents
CONTENTS Part Numbers Covered By This Manual Safety Introduction Features and Functions Set Up Instructions Product Hanger Secondary Handle Connecting Air Supply Air Lubrication Torque Reaction Clockwise/Anti-Clockwise Operation Setting Torque to Tighten Fastener Operating Instructions Tightening Releasing Maintenance Air Lubrication Gearbox Silencer Drive Square... -
Page 5: Part Numbers Covered By This Manual
PART NUMBERS COVERED BY THIS MANUAL ® This manual covers the setup and use of Snap-on stall tools. Maximum Part Number Description Direction Torque Dual Trigger / Bi-directional / PTM370 Clockwise and Anti-Clockwise 370 ft·lbf ¾” Square drive Dual Trigger / Bi-directional /... -
Page 6: Safety
Ensure all hoses are correctly fitted before switching on the air supply. This avoids the risk of injury by whipping air hoses. Unexpected direction of drive square movement can cause a hazardous situation. Use only Snap-on™ impact sockets and high quality adaptors which are in good condition and are intended for use with power tools. ®... -
Page 7: Introduction
INTRODUCTION ® The Snap-on PTM tools are air driven power tools designed for applying torque to threaded fasteners. There are models to cover torque capacities of 590 ft·lbf to 4425 ft·lbf. The tools use an external air pressure regulator to set the air pressure that controls the stall torque. -
Page 8: Features And Functions
Hanger ® The hanger can be used to suspend the Snap-on tool from a balancer. Quick Tool Coupling Air couplings supplied to allow quick tool connection and disconnection from the air hose. -
Page 9: Set Up Instructions
® Snap-on Secondary Handle ® The secondary handle offers additional support and ease of handling when applying torque with Snap-on driven power tools covered in this manual. Installation instructions for Secondary Handle: Remove both screws with a 4mm Allen Key Position the Secondary Handle over the groove of the gearbox and tighten both screws to 6.6 ft·lbf (9 N·m). -
Page 10: Connecting Air Supply
Turn on air supply and check for air leaks. FIGURE 1 – Connections Air Lubrication ® The tool must be used with oil lubrication in the supplied air. This is achieved by using a Snap-on filter regulator PTQFRL Unit (not supplied). Set the air lubrication: Fill filter regulator unit with hydraulic oil (Shell Tellus S2M 32 or equivalent good quality hydraulic oil). -
Page 11: Torque Reaction
A range of nose extensions is available for applications where access is restricted. These are designed to support the final drive correctly. The dimensions of the standard reaction bars is shown in the following table: Reaction Bars (Standard) Tool ‘L’ ‘A’ ‘B’ ‘W’ ‘SQ’ PTM370 59mm 131mm 71mm 35mm 3/4” PTM590 59mm 131mm 71mm 35mm 3/4”... -
Page 12: Clockwise/Anti-Clockwise Operation
® When the Snap-on tool is in operation the reaction bar rotates in the opposite direction to the output drive square and must be allowed to rest squarely against a solid object or surface adjacent to the fastener to be tightened. -
Page 13: Setting Torque To Tighten Fastener
Setting Torque to Tighten Fastener ® The torque created by the Snap-on tool depends on the air pressure setting. All tools are supplied with an Air Pressure Graph that gives the air pressure required to produce the correct torque output. -
Page 14: Operating Instructions
ORDER TO PREVENT UNEXPECTED RELEASE IN THE EVENT OF FASTENER OR COMPONENT FAILURE. Tightening ® Fit Snap-on tool with the correct size impact or high quality socket to suit fastener. TIP: For added safety it is recommended to secure the socket to the square drive. -
Page 15: Releasing
Releasing ® Fit the Snap-on tool with the correct size impact or high quality socket to suit the fastener to be released. TIP: For added safety it is recommended to secure the socket to the square drive. This is often achieved using a pin and O ring, see socket manufacturer for guidance. -
Page 16: Maintenance
Any other maintenance or repairs should be carried ® ® out by Snap-on or a Snap-on agent. Maintenance intervals will depend on the tool usage and the environment in which it is being used. The maximum recommended maintenance and recalibration interval is 12 months. -
Page 17: Drive Square
Connect air supply. ® ® TIP: If the drive square fails continually then seek advice from Snap-on or a Snap-on agent. Calibration To maintain the tool accuracy it is recommended the tool is recalibrated at least every 12 months. Contact ®... -
Page 18: Specifications
SPECIFICATIONS Torque Part Number Tool Speed Minimum Maximum PTM370 74 lbf·ft (100 N·m) 370 lbf·ft (500 N·m) 224 rev/min PTM590 118 lbf·ft (160 N·m) 590 lbf·ft (800 N·m) 148 rev/min PTM740 147 lbf·ft (200 N·m) 740 lbf·ft (1000 N·m) 122 rev/min PTM1000 200 lbf·ft (270 N·m) - Page 19 Repeatability: ± 5% Air Supply: Maximum pressure 91.4 psi (6.3 bar) (For maximum output speed). Temperature Range: 32° F to 122° F (0° C to +50°C) (op erating). -4° F to 140°F (-20° C to +60° C) (storage). Operating Humidity: 85% Relative Humidity @ 86°...
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Page 20: Trouble Shooting
TROUBLE SHOOTING ® ® The following is only a guide, for more complex faults please contact Snap-on or a Snap-on agent. Problem Likely Solutions Check air supply is functioning and connected Check air pressure setting (at least 1 bar) Check correct setting of direction knob... - Page 21 NOTES...
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