Universal Air Tools UT5715 User Manual

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Operator Instructions Important

Includes - Foreseen Use, Work Stations, Putting Into Service, Operating, Dismantling, Assembly and Safety Rules

Manufacturer/Supplier Product Type

Universal Air Tool Company Limited Unit 8 Lane End Industrial Park High Wycombe Bucks HP14 3BY

Tel No Fax No

(01494) 883300 (01494) 883237

Read these instructions carefully before insta lling, operating, servicing or repairing this tool. Keep these instructions in a safe accessible place.

Die Grinder - Right

ngle Head

Model No/Nos Serial No

UT5715

RPM

22,000

Cycles Per Min

Product Nett Weight

1.10

0.50 3/8 10 30 10

Recommended Working Recommended Minimum

Maximum

lbs Kg

Air Pressure

Personal Safety Equipment

Use - Safety Glasses Use - Safety Gloves Use - Safety Boots Use - Breathing Masks Use - Ea r P ro t ec to r s

Foreseen Use Of The Tool

This die grinder is prima rily de signe d for u se with bonded abrasive mounted point grinding wheels. It may also be used with ste el rotary files and carbide bu rrs provided their speed rating matches the speed of the grinder. This tool should not be fitted with cutting off wheels, saw blades, drill bits, etc. If there is any doubt about the correct use of this product contact your supplier for advice. Also make sure th at the shank s ize of the a ttachment to be driven matches with the collet size fitted in the grinder and that the maximum allowed running spee d of the attachment exceeds that marked on the grinder. There are special rules governing the use of bonded abrasive mounted point grinding wheels - for details see section "Operating".

Recommended Use Of

Balancer Or Support

6.3

bar

PSI

n/a

bar

n/a

PSI

bar

100

Yes Yes

PSI

Recommended Hose Bore

Size - Minimum

Ins M/M Ft M

Noise Level

Sound Pressure Level 90.0 dB(A) Sound Power Level 97.0 dB(A)

Test Method

Tested in accordance with Pneurop

test code PN8NTC1 and ISO Standard 3744

Vibration Level

Test Method

Less than 2.5

ested in accordance with ISO

standard 8662 Parts 1 & 17

Putting Into Service

Air Supply

Use a clean lubricated air supply that will give a measured air pressure at the tool of 90 p.s.i./6.3 bar when the tool is running with the lever/trigger fully depressed. Use recommended hose size and length. It is recommended that the tool is connected to the air supply as shown in figure 1. Do not connect the tool to the air line system without incorporating an easy to reach and operate air shut off valve. The air supply should be lubricated. It is strongly recommended that an air filter, regulator, lubricator (FRL) is used as shown in Figure 1 as this will supply clean , lubricated air at the correct pressure to the tool. Details of such equipment can be obtained from your supplier. If such equipment is not used then the tool should be lubricated by shutting off the air supply to the tool, depressurising the line by pressing the lever/trigger on the tool. Disconnect the air line and

Recommended Max.

Hose Length

Metres / Sec²

Work Stations

The tool should only be used as a handheld hand operated tool. It is always recommended that the tool is used when standing on the solid floor. It can be used in other positions but before any such use, the operator mus t be in a secur e position having a firm grip and footing and be aware of the extra safety precautions that must be observed when using Grinding Machines.

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pour into the intake bushing a teaspoonful (5ml) of a suitable

pneumatic motor lubricating oil preferably incorporating a rust inhibitor. Reconnect tool to air supply and run tool slowly for a few sec onds to allow air to circulate the oil. If tool is used frequently lubricate on daily basis and if tool starts to slow or lose power. It is recommended that the air pressure at the tool whilst the tool is running is 90 p.s.i./6.3 bar. The tool can run at lower and higher pressures with the maximum permitted working air pressure of 100 p.s.i./7.0 bar. If tool is used daily then every other day grease gears (27) & (32) via grease plug (40).

Operating

Select a suitable mounted point that has a free running speed higher than the maximum running speed marked on the tool. Make sure that the diameter of the shank exactly matches the diameter of the collet mounted in the grinder. There are three standard sizes of collet available for use with this grinder, i.e.

1) - 1/4" Dia (0.250ins) (6.35mm)

2) - 6mm (0.236ins)

3) - 1/8" (0.125ins) (3.175mm) Never try to force a 1/4" diameter shank into a 6mm collet. Never try to close a 1/4" diameter collet to secure a 6mm shank. Always match correctly the shank size to the collet size. If uncertain, have parts measured by a competent person. Push the shank as far as possible into the collet and tighten the collet nut using the spanners provided on the collet nut and output spindle. The shank of the mounted point may be pulled forward from the maximum insertion length but always ensure a minimu m gripping length of not less than 10mm - See Figure 2. Be aware that the allowed running speed of the mounted point is lowered because of an increase in the length of the shank between the end of the collet and the body of the mounted point. This distance is shown in Diagram 2 as "LO" and is called the overhang. The information with respect to mounted point size, permissible running speed and reduction in running speed due to an increase in overhang is available from the supplier of the mounted point. If the increase in overhang for access reasons takes the permissible running speed of the mounted point below the free running speed of the grinder select a smaller diameter mounted point. The fitting of the mounted point should be done by a trained operator. When first starting th e grinder w ith a ne w whee l fitted, the grinder should not be near othe r persons and be held in a protected area, i.e. under a bench and run for a few seconds. This will protect personnel from possible effects of damage to the mounted point before it was fitted to the grinder i.e. wheel breakage. Always use eye protection and wear protective gloves if there are sharp edges in the work area. The tool and the grinding process can create a noise level such that the use of ear protectors is advised. If the grinding process creates a dust then use a suitable breathing mask. Check that the material being worked will not cause harmful dust or fumes. If this is so then special breathing masks may be required. If the grinder vibrates when first fitting a mounted point or during operation, re move from service immediately and corre ct fault before continuing to use.

Figure 2. Gripping length of collet and chuc

Do not apply excessive pressure as this will reduce the cutting efficiency and can bend the shank of the mounted point causing vibration an d the possibility of breakage. Apply light loads to allow the wheel to cut. Handle the grinder with care. If the grinder is dropped, carefully check the mounted point for damage, i.e. cracks, chipping and start for the first time a s for fitting a new wheel i.e. un der a bench. Never exceed the maximum air pressure. If there is this possibility always use this grinder with a pressure reducing valve fitted in the s upply line. Your supplier will advise of suitable equipment. This grinder is fitted with a speed regulator and the speed may be reduced by rotating air regulator (41). When making speed checks always rotate the air regulator to the position to give the highest maximum speed.

Dismantling & Assembly Instructions

Disconnect tool from air supply. Grip spindle (33) and unscrew collet nut (25) and pull out collet (24). With a suitable wrench unscrew [left hand thread] clamp nut (31) and pull out the gear drive assembly. Remove bearing (13), pull off bevel gear (30) and key (32) and separate bearing (20) and spindle (33). Unscrew cap (26) and remove cap (26) and angle housing (28). Unscrew lock (23) from motor housing

(45). Lock (26) may be removed from angle housing (28) by unscrewing it (left hand thread). Pull out the motor assembly from motor hous ing (45) complete with

D = diameter of mounted point T = length of mounted point Lo = overha n g S = diameter of shank Lg = gripping lengt h

pinion gear (22) and grip the rear plate

(14) tightly by hand and tap the end of the rotor (15) to drive the rotor through the rear plate (14) and bearing (13) assembly. Remove cylinder (18) noting its location to rear plate (14) and front plate (19) for reassembly. Remove 4 off rotor blades (16) from rotor (15). Grip the rotor (15) in a vice fitted with soft jaws and unscrew pinion gear (22) from the rotor. The rotor (15) may be pulled or tapped clear of rotor spacer (12), front end plate (19), bearing (20). Pins (17) and (38) may be pulled out of front end plate (19) if replacements are required. Bearing (13) may be tapped out of rear plate (14).

Reassembly

Clean and examine parts for wear and replace any parts only with those supplied by the manufacturer or authorised distributor. Ensure that the faces of end plates (14) and (19) that abut cylinder (18) are flat and free from burrs and surface marking. If necessary lap on a flat very fine grade of abrasive paper. Lightly coat all parts in suitable pneumatic tool lubricating oil, pack bearings and gears with a lithium or molybdenum based gen eral purpose gre ase an d assemble in the re verse order. Note:- when reassembling the motor assembly ensure that the pins (17) in end plates (19) and (14) locate in the narrow groove in the outer diameter of cylinder (18). When assembling the complete m otor and pinion assembly into the motor housing (45) ensure that the steel ball (38) located in the side of front end plate (19) locates in the slot in the front end of motor housing (45).

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UT5715 Die Grinder - Right Angle Head

Ref No Part No Description

1 52220 1 Motor Housi ng 2 40337 Lever Pi n 3 52220 3-21 Air In let 4 52220 4 Throttle Lev er 5 52220 5 Valve Sh af t 6 52206 Deflector 7 OR00705105-1 O-Ring 8 522208 Spring

9 73107 O-Ring 10 522210 Valve Screw 11 72834 O-Ring 12 52212 Rotor Spacer 13 O5221 3 Ball Bear ing (2) 14 52214 Rear End Plate 15 52215 Rotor 16 52216 Vane (4) 17 30117 Spring Pin (2) 18 52218 Cylinder 19 52219 Front End Plate 20 O3012 0 Ball Bear ing (2) 21 522221 Controller 22 52222 Pinion Gear 23 522223 Front Coupling 24 51224 Collet

Ref No Part No Description

25 52225 Collet Nut 26 522226 Front Cap 27 5 22 27 Spanner (2) 28 56228 Head 29 522241-21 Fixed Shaft 30 52230 Bevel Gear 31 52231 Lock ring 32 52232 Key 33 52233 Spindle 34 522236 Bushing 35 52235 O-Ring 36 52236 O-Ring 37 56237 Oil Cap 38 52245 Steel Ball 39 522239 Safety Bar 40 522240 Throttle Valve 41 522238 Knob 42 522217 Spring Pin 43 522220 Spring Pin 44 522212 Spring 45 522252-15 Grip 46 30107 O-Ring 47 70117 Spring Pin

Nov 2004 Ver 1.0

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Declaration of Conformity

Universal Air Tool Company Limited

Unit 8, Lane End Industrial Park, High Wycombe, Bucks, HP14 3BY, England

declare under our sole responsibility that the product

Model UT5715 Die Grinder (R/A Head), Serial Number

to which this declaration relates is in conformity with the following standard(s) or other normative document(s)

EN792 (Draft), EN292 Parts 1 & 2, ISO 8662 Parts 1 & 17, Pneurop PN8NTC1

following the provisions of

89/392/EEC as amended by 91/368/EEC & 93/44/EEC Directives

Lane End

Place and date of issue Name and signature or equivalent marking of authorised person

D.H.Moppett (Man. Director)

Safety Rules When Using A Die Grinder

1) Read all the instructions before using this tool. All operators must be fully trained in its use and aware of these safety rules.

2) Always select suitable abrasive to use with this tool - see Operating Instructions.

3) Always shut off the air supply to the grinder and depress the lever to exhaust air from the feed hose before fitting, adjusting or removing the mounted point.

4) Always adopt a firm footing and/or position before using the grinder.

5) Use only correct spare parts.

6) Check hose and fittings regularly for wear. Do not carry the tool by its hose.

7) Do not remove and never tie down the safety lever.

8) Never exceed the maximum air pressure and check the free running speed frequently. Have air regulator fully open.

9) Use safety equipment as recommended.

10) Take care against entanglement of moving parts of the tool with clothing, ties, hair, cleaning rags, etc.

11) Use only compressed air at the recommended pressure.

12) Do not attempt to fit any other attachment than those recommended - see “Foreseen Use of Tool”

13) If the tool appears to malfunction remove from use immediately and arrange for service and repair.

Notes

Accessories

Distributor

This document may not be copied wholly or in part by anyone without the consent of the Directors of Universal Air Tool Company Limited

Designed & Written in the U.K.

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