1685 SAFETY INFORMATION For your safety, read this manual thoroughly before operating the Tire Changer This tire changer is intended for use by properly trained automotive technicians. The safety messages presented in this section and throughout the manual are reminders to the opera- tor to exercise extreme caution when servicing tires with these products.
1685 IMPORTANT SAFETY INSTRUCTIONS When using this equipment, basic safety precautions should always be fol- lowed, including the following: Read all instructions. Do not operate equipment with a damaged power cord or if the equipment has been damaged - until it has been examined by a qualifi ed authorized service technician.
1685 TABLE OF CONTENTS UPDATING GUIDE INSTRUCTIONS: Safety Label Meanings p. 5 Release: _______ ________ May 2024 Finalization of technical data Safety p. 8 Format of this Manual p. 10 Label of the constructor p. 10 Specifi cations p. 11 Conditions p.
1685 INSTRUCTIONS: Safety Label Meanings IMPORTANT!! SAVE THESE INSTRUCTIONS Overinfl ated tires or tires mounted on the wrong sized rims can explode producing hazardous fl ying debris. · Read and understand the operation instructions before using this tire changer.
Page 6
1685 · Do not use unapproved accessories · Do not bypass any safety features. · Use proper tire lubricant to prevent tire binding. Contact with moving parts could cause injury. Risk of eye injury. Debris, dirt, and fl uids may drop from wheels.
Page 7
1685 Tires and Rims that are not the same diameter are mismatched. NEVER attempt to mount or infl ate any tire and rim that are mismatched. · ALWAYS check to see that tire and rim diameters are the same.
1685 1.0 Safety The safety precautions must be completely understood and observed by every operator. THE OPERATOR MUST STAY NEAR ‘THE MACHINE, IN GOOD POSITION OF WORK, AT THE COMMAND UNIT SIDE (A). ONLY THE OPERATOR MAY ACCESS THE WORK AREA.
Page 9
1685 BEFORE PERFORMING ANY MAINTENANCE OR REPAIRS THE MACHINE MUST BE DISCONNECTED FROM THE AIR AND ELECTRICAL SUPPLY. NEVER WEAR TIES, CHAINS OR OTHER LOOSE ARTICLES WHEN USING, MAINTAINING OR REPAIRING THE MACHINE. LONG HAIR IS ALSO DANGEROUS AND SHOULD BE KEPT UNDER A HAT.
1685 1.1 Format of this Manual This manual contains text styles which make you pay extra attention: Note: Suggestion or explanation. CAUTION: STRESSES THAT THE FOLLOWING ACTION MAY CAUSE DAMAGE TO THE UNIT OR OBJECTS ATTACHED TO IT. STRESSES THAT THE FOLLOWING ACTION MAY CAUSE (SEVERE) INJURY TO THE OPERATOR OR OTHERS.
1685 3.0 Introduction Congratulations on purchasing the pneumatic-electric tire changer: HOFMANN monty 1685. This tire changer is designed for ease of operation, safe handling of rims, reliability and speed. With a minimum of maintenance and care your tIre changer will provide many years of trouble-free operation.
1685 3.1 Accessories A series of accessories are usually available for the machine. All accessories are indicated on the website: http://service.snapon-equipment.net/ Fig. 3.1-1 After accessing the website, proceed as follows: - Select Accessory Plan (1). - Select the reference brand in the fi eld Brands (2).
1685 4.0 Layout Refer to Figure 4.0-1 / 4.0-2. Functional description of the unit: 1. Vertical slide 2. Swing arm 3. Adjustment knob 4. Vertical bar Lock lever 5. Mount/demount tool or head 6. Tower or column with air tank 7.
1685 4.1 Controls W H E N O P E R AT I N G T H E I N F L ATO R I T I S MANDATORY TO WEAR EAR PROTECTORS AND SAFETY GLASSES TO PREVENT CONTAMINATION FROM NOISE, DUST AND CHIPS BLOWN BY THE AIR JETS.
Page 16
1685 Only for Tubeless wheel models: WHEN OPERATING THE BEADING DEVICE IT IS MANDATORY TO WEAR EAR PROTECTORS AND SAFETY GLASSES TO PREVENT CONTAMINATION FROM NOISE, DUST AND CHIPS BLOWN BY THE AIR JETS. DANGER OF TIRE EXPLOSION. Fig. 4.1-3 F1.
1685 5.0 Mounting and demounting. General precautions CAUTION: BEFORE MOUNTING A TIRE ON A RIM ENSURE THE FOLLOWING RULES ARE OBSERVED: A- THE RIM MUST BE CLEAN AND IN GOOD CONDITION: IF NECESSARY CLEAN AFTER REMOVING ALL WHEEL-WEIGHTS INCLUDING ‘TAPE WEIGHTS’...
1685 5.1 Demounting tubeless tires · Remove all wheel-weights from the rim. Remove the valve stem or core and defl ate the tire (Fig. 5.1-1). · Break outer bead starting from opposite the valve position. lubricate the bead and rim with a tire lube only.
1685 5.1.1 Removing the tires BEFORE PROCEEDING WITH THE TYRE EXTRACTION, CHECK THAT BOTH BEADS ARE COMPLETELY BROKEN. 5.1.1.1 Head Positioning Procedure: If necessary, adjust the mounting head as described in chapter 5.7.2. · Position the mount/demount head in contact with the 5.1.4...
1685 5.2 Mounting tubeless tyres · Lubricate the entire rim surface (Fig. 5.2-1).Lubricate both beads, inside and outside, (Fig. 5.2-2). OBSERVE THE ROTATION DIRECTION OF THE TIRE, IF REQUIRED. SOME TIRES HAVE A COLOR DOT THAT MUST BE KEPT ON THE OUTSIDE OF THE WHEEL.
1685 5.2.1 If the top tire bead is diffi cult to mount PBA330 Fig. 5.2-5 Option 1) Use the Bead Assist PBA330. Option 2) Follow these instructions using the optional bead clamp A. After installing, the bottom bead insert the tire tool to the left of the bead head as shown (Fig.
1685 5.3 Beading the tires Beading means the initial grip of the tire bead on the rim, in order to allow the infl ation operations and subsequent settling in the seat on the rim. Safety Precautions: For safety reasons a quick-infl ating valve preset to 4,5 bar is fi...
Page 23
1685 WHEN OPERATING THE BEADING DEVICE IT IS COMPULSORY TO WEAR EAR DEFENDERS TO PROTECTAGAINST NOISE AND SAFETY GOGGLES TO PREVENT ANY CONTAMINATION BY DUST AND OTHER IMPURITIES BLOWN BY THE AIR JETS. Beading Tubeless: tires Perform the beading with the wheel blocked on the tire changer.
1685 5.4 Demounting tube-type tires · To demount the tire operate as described for tubeless tires in section 5.1.A through section 5.1 In this case the valve cannot be replaced because it is part of the tube. BE CAREFUL NOT TO DAMAGE THE TUBE DURING THE BEAD-BREAKING OPERATION.
1685 5.7 Mounting and Demounting Motorcycle tires To mount and demount motorcycle tires it is necessary to utilize the optional motorcycle adaptors (4 piece) and Motorcycle bead breaker blade (See the Accessories Plan). The bead-breaking, mounting and demounting technique is the same as per car tires.
1685 6.0 Maintenance BEFORE ATTEMPING ANY MAINTENANCE OR REPAIRS THE MACHINE MUST BE DISCONNECTED FROM THE AIR AND ELECTRIC SUPPLY. A. Periodically clean the vertical hexagonal rod with nonfl ammable liquid detergent. Lubricate with oil (Fig. 6-1). B. Periodically clean the turntable with a nonfl ammable liquid detergent, dry and lubricate the sliding surface of the clamps with oil.
1685 I. The machine is equipped with an automatic lubricator. Check the oil level weekly. When adding oil to the lubricator, disconnect the air supply fi rst, and add oil as needed. Make sure seals are in place when repositioning the cup.
1685 7.0 Trouble shooting If a problem with the pneumatic electric tire changer, proceed in the following order to solve the problem: 1. Rethink the last steps taken. Did you work according to the manual? Did the machine work as described and expected? 2.
Page 29
1685 Turntable does not hold the rim. 1. Jaws are dirty. · Clean jaw teeth. 2. Turntable dirty. · Clean and lubricate turntable. 3. Low air pressure. · Check air pressure 4. Jaw teeth worn out. · Check jaws condition.
1685 Disposing of the unit To dispose of the equipment at the end of its life, contact the reseller for a quote or for the regulations on disposal which apply to the unit. This symbol indicates that separate collection of waste electrical and electronic equipment is mandatory for scrapping.
1685 Appendices: Installation Instructions This chapter contains additional information about the unit. If reference is made to the exact confi guration of the unit, please note that the exact confi guration may be diff erent in your country. Consult the order confi rmation for details.
1685 9.i. Installation requirements THE INSTALLATION SHALL BE CARRIED OUT ONLY BY QUALIFIED PERSONNEL AND WITHIN THE SCOPE OF THE INSTRUCTIONS PROVIDED IN THIS MANUAL. Install the machine in a covered and dry area. The installation of the machine requires a free space of at least 106”x106”...
1685 9.ii Carriage - Uncrating - Moving the machine Carriage instructions The machine is crated in a corrugated box of appropriate strength. The box is mounted on a pallet. Handling of the machine must be made with an appropriate lifting device (fork lift) (Fig.ii-1).
1685 9.iii Installation procedures Electric installation THE INSTALLATION SHALL BE CARRIED OUT ONLY BY QUALIFIED PERSONNEL AND WITHIN THE SCOPE OF THE INSTRUCTIONS PROVIDED IN THIS MANUAL. Check on the plate of the machine that the electrical specifi cations of the power source are the same as the machine.
1685 If the air pressure exceeds 174 psi (12 bar) it is mandatory to install a pressure regulator before the air inlet of the machine. It is suggested that the air supply be equipped with a water separator to reduce the amount of water at the air inlet.
Page 37
Notice: The information contained in this document is subject to change without notice. Snap-on Equipment makes no warranty with regard to present documentation. Snap-on Equipment shall not be liable for errors contained herein or for incidental consequential damages in connection with furnishings, performance, or use of this material. Attention: Les informations figurant dans le présent document peuvent faire l’objet de modifications sans préavis.
Need help?
Do you have a question about the monty 1685 and is the answer not in the manual?
Questions and answers