MAJOR 240 241 Tire Changer Assist Arm Instruction Manual

MAJOR 240 241 Tire Changer Assist Arm

Thank you for choosing our company’s tire changer. We are committed to producing quality goods under the ISO9001 Quality system and have obtained the EU CE certificate. Please read this user manual carefully before installation and use of the machine and keep the manual well for future reference.

WARNING
This instruction manual is an important part of the product. Please read it carefully. The manufacturer will not be responsible for any damage or injury caused by improper operation or use beyond the specified range.

Basic Structure

The 240 is the assist device for 890 series machine and 241 is for 870. The assist arm can be used to better assist the tire changer to mount and demount flat and hard tires.

1. A. locking block
2. B. fixed base
3. C. main rotation arm
4. D. control valve
5. E. rotation pressing arm
6. F. locking rotary knob
7. G. press roller
8. H. accessary bracket
9. I. short centering pestle
10. J. long centering pestle
11. K. lifting plate
12. L. quick-changing latch
13. M. fixed press roller
14. N. fixed press arm
15. O. conversion pin roller
16. P. control valve
17. Q. lifting cylinder

Installation Instructions

Before installation, ensure that the power supply and air supply of the main machine are cut off.

1. Remove the big washer from the fixed base top using the 10# Allen key like FIG3.

2. Install the assist arm (FIG4-1) onto the fixed base (FIG4-2) and swing it slightly until the assist arm slides to the bottom. Then install the big washer and tighten it using the 10# Allen key(FIG5).

3. Remove the press arm rotation shaft using monkey wrench(FIG6-1). Note: when removing the press arm rotation shaft, must hold the connect plate (FIG6-2) and guide rod (FIG6-3) to avoid injury and damage.

4. Connect the rotation arm (FIG7-1) and fixed arm (FIG7-2) using the press arm rotation shaft which was removed in the previous step. Pay attention to the position of the two arms. Then insert the shaft into the hole at the bottom of the cylinder and fix it like FIG8.

5. Fix the handle control box to the main rotation arm side with 4*M6X10 screws by 5#Allenkey like FIG9.

6. Install the accessory bracket (FIG1-H) to the tire changer backside using 2*M8X25 screws and nuts like FIG10. After installation, put the short centering pestle (FIG1-I) and long centering pestle (FIG1-J) and lifting plate (FIG1-K) on the bracket for use like FIG11.

7. Adjusting the centering: like FIG12, install the centering pestle and put it over the center of turntable then tighten the locking block screw (FIG13-1) using 8# Allen key. And tighten the four pieces of fixed base screws (FIG13-2) and two pieces locking block screws (FIG13-3) using 18# spanner.

8. Connect the Y-TEE and air regulator then connect all the PU hose like FIG14.

9. open the package and install the fixed base (FIG2-1) onto the top of column(FIG2-4); install the fixed base limit jackscrew (FIG2-2)like the picture showing the direction; install the 4 pieces of M1240 screw and flat washers (FIG2-3).
   Note : do not tighten the 4 screws totally.

10. remove the big washer from the fixed base top using the 10# Allen key like FIG3.

11. install the assist arm (FIG4-1) onto the fixed base (FIG4-2) and swing it slightly till the assist arm slides to the bottom then install the big washer and tighten it using the 10# Allen key(FIG5).

12. remove the press arm rotation shaft using monkey wrench (FIG6-1).
    Note : when remove the press arm rotation shaft, must hold the connect plate (FIG6-2) and guide rod (FIG6-3) to avoid the injury and damage.

13. connect the rotation arm (FIG7-1) and fixed arm (FIG7-2) using the press arm rotation shaft which removes in the step 2.4. Pay attention to the position of the two arms. Then insert the shaft to the hole at the bottom of the cylinder and fix it like FIG8

14. fix the handle control box to the main rotation arm side with 4*M6X10 screws by 5#Allenkey like FIG9.

15. install the accessary bracket (F IG1 H) to the tire changer back side using 2*M8X25 screws and nuts like FIG10. After installation, put the short centering pestle (FIG1 I) and long centering pestle (FIG1 J) and lifting plate (FIG1 K) on the bracket for using like FIG11.

16. adjusting the centering: like FIG12, install the centering pestle and put it over the center of turntable then tighten the locking block screw (FIG13 1) using 8# Allen key. And tighten the f our pieces of fixed base screws (FIG13 2) and two pieces locking block screws (FIG13 3) using 18# spanner.

17. connect the Y-TEE and air regulator then connect all the PU hose like FIG14.

Operation Instructions

The main rotation arm (FIG1-C) has an automatic centering function. The main rotation arm can lock the demounting head at a proper position. The main rotation arm (FIG1-C) has the automatic centering function. The main rotation arm can lock automatically when it moves to the center of turntable. Press the control valve (FIG1-P) to release the lock. The assist arm must use with the suitable tire changer

1. On the basis of rim size, choose the proper groove in the connect plate (FIG18-2) and insert the shift pin (FIG18-1) to lock.
2. Put the fixed press roller (FIG1-M) on the edge of demounting head then move the cylinder downward to press the tire down to 3-5cm. Insert the crowbar into the gap between the demounting head and tire lip (FIG19). Lift the cylinder.
3. Rotate the rotation arm (FIG1-E) to the opposite side of the tire and press the roller on the edge of the tire then lower the cylinder to 5-6 cm. Pull the crowbar like FIG20 to lift the tire lip onto demounting head. Lift the cylinder and step on the pedal to rotate the motor to demount the tire.

demounting operation

• When choose clamp outside method: open the clamps till the size bigger than rim diameter 2-3mm then put the tire on turntable. Choose the suitable centering pestle (FIG1-I or FIG1-J) according to the width of tire and rotate the arm over the center of the rim like FIG16. Operate the lifting cylinder move downward to make the rim close the clamps then step the pedal to clamp the rim (FIG17). Remove the centering pestle.
• Lock the demounting head at proper position.
• On the basis of rim size, choose the proper groove in the connect plate (FIG18-2) and insert the shift pin (FIG18-1) to lock. Put the fixed press roller (FIG1-M) on the edge of demounting head then move the cylinder downward to press the tire down to 3-5cm. insert the crowbar into the gap between the demounting head and tire lip (FIG19). Lift the cylinder
• Rotate the rotation arm (FIG1-E) to the tire opposite side and press the roller on the edge of tire then go down the cylinder to 5-6 cm. pull the crowbar like FIG20 to lift the tire lip onto demounting head. Lift the cylinder and step the pedal to rotate the motor to demount the tire.

Note : can use the lifting plate (FIG1-K) to assist lifting the tire when demount the lower tire side like FIG21

mounting operation
Need to check the tire size and rim size before mounting the tire to rim.

• Mount the lower tire side as normal operation without using the assist arm.
• Adjust the upper tire side position well and put the two arms at proper position like FIG22. Adjust the two press roller to the edge of rim 1-2cm then go down the cylinder 5-7cm in order that the tire lip is lower than groove. Step the pedal to rotate the turntable. Pay attention to the tire situation when the tire just 10-15cm out; if there has tear sign or the motor blocks, release the pedal at once and lift the pedal to rotate oppositely. Repeat the operation till mount the tire fully.

VERSION:
A01 Dear customers, Very pleased that you will purchase and use the tire chang er produced by our company. We are the company with reputation of quality. We sincerely wish to produce quality goods under the ISO9001Quaality system and get the EU CE certificate to help you promote your business. Please read carefully this user manual before installation and use of the machine and keep the manual well for check at any time.

WARNING

• This instruction manual is the important part of the product. Please read it carefully.
• The manufacturer will not be responsible for the damage or injury caused for the operation not properly and out of the range.
• The 240 is the assist device for 890 series machine and 241 is for 870. The assist arm can be better to assist the tire changer to mount and demount the flat and hard tire.
• Must cut off the power supply and air supply of the main machine before installation

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