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7. Daily inspection, maintenance

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WARNING

8. Requesting repairs

Fig. 28

A. Overall inspection

1) Inspect the fitting screws (A)

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Inspect screws and nuts on each part of the machine, and retighten if loose.

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Among other things, check the screws on the upper roller and the nuts on the lower roller.

If the screws are loose, the roller will be damaged.

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Check that the screws on the mount kit are tightly fastened.

2) Inspect the threading machine's electrical connections and cables (B)

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Check for damage to the plug and power cord, and replace if necessary.

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To prevent electrical leakage and shock, ensure the machine is properly grounded.

3) Inspect the rollers (C)

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Check that the rollers match the type of pipe being processed or normal grooving will not be possible.

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Check for chips or cracks in the rollers. If they are damaged or broken, they will not perform correctly

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and the machine will be damaged. Replace them if necessary.

4) Periodical lubrication (C)

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To prevent burning or galling, be sure to lubricate regularly.

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When replacing rollers, apply grease to the entire circumference of the upper roller shaft and to the

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inside of the lower roller.

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Remove the upper roller every two weeks and replenish the bearings with grease.

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Apply grease to the grease nipple on the side of the machine.

5) Clean after use (A)

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To prolong the life of the machine, be sure to clean the machine and the rollers each time after you use it.

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Before carrying out any inspections or machine maintenance, make sure you unplug the threading machine.
If the machine suddenly starts to operate while checking it, it may lead to accidents and injury.

This machine is produced with great precision; therefore, should the machine fail to operate normally, do not

repair it by yourself, but call us for repairs.

If parts are required or if you have any questions, please contact us at your earliest convenience.

Inspection of rollers

C. Grease nipple

Содержание RG-RH

Страница 1: ...sure to hand this operation manual to the user ޓ Carefully read through the manual before using the machine to ensure safe and effective use ޓ Be sure to keep the manual where the operator can refer to it whenever necessary ...

Страница 2: ...ey greatly affect safety If this operation manual is lost or damaged promptly order a replacement from your distributor or our sales department Parts and specifications are subject to change without prior notice due to improvements in quality performance or safety standards In such cases the contents photographs illustrations etc in this manual may be different to the product you have purchased 㧍 ...

Страница 3: ...s noticed stop operation immediately When the machine does not operate smoothly or abnormalities such as unusual smells vibration or noise are detected immediately stop operating the machine Check symptoms against the items in Troubleshooting at the end of this manual and follow the appropriate instructions If the machine is used continuously it might lead to overheating smoke or fire resulting in...

Страница 4: ...distributor or our sales department for repairs If an extension cord is used inspect the cord periodically and if damaged replace it If extension cords are used outdoors use extension cords designed for outdoor use to prevent electric shock short circuit or fire Keep parts used for gripping the machine dry and clean and free of oil and grease Slipping may cause injury 17 Check for damaged parts Be...

Страница 5: ... attached it with not be possible to set it on the pipe threading machine correctly 5 Make sure the threading machine rotates in the right direction The direction for threading is the right direction If it is in the reverse direction the pipe will fall out which can be very dangerous 6 The pipe must be set correctly See Fig 14 Pg 10 Set the pipe so that it is in the right direction and at 0 5q to ...

Страница 6: ...8kg including connecting shaft Connecting shaft Socket head cap screw M10 x 25 Spring washer 10mm 1 11 2 Roller Set Schedule 10 40 2 6 Roller Set Schedule 10 40 Also as standard accessory 8 12 Roller Set Schedule 10 8 Schedule 40 10 12 Roller Set Schedule 40 14 16 Roller Set Schedule 10 1 11 2 Main Shaft 1 6 Pipe Support 8 12 Pipe Support Roller set for thin wall stainless steel 1 11 2 2 3 4 6 Mou...

Страница 7: ...achine is used Which pipe threading machine it can be attached to is indicated on the mount kit Attach the mount kit in the correct direction Fig 2 㨯If the mount kit is attached in the opposite direction an unnecessary load will be applied to the threading machine s chuck thereby resulting in damage Fig 2 Bolt M10 x 25 Spring washer 10mm Mount Kit Hook Code No Table 1 Mount Kit Name For use with M...

Страница 8: ...el pipe Where other sizes of steel pipes are to be machined replace the roller set upper and lower roller The appropriate sizes are stamped on the roller Fig 4 㧍 CAUTION 㨯Be sure to replace the upper and lower rollers as a set If the wrong combination is used correct grooving will not be possible Fig 3 Connecting shaft Fixing screw Size mark Main shaft Fig 4 2 6 2Ð6 2Ð6 Code No Table 2 Roller Set ...

Страница 9: ...ller into the main shaft and firmly lock with the hexagonal nut 3 Replace the safety cover and tighten the screws Before setting up clean the inside surface of the roller and the shaft of waste Apply grease to the entire circumference of the upper roller shaft and the inside surface of the lower roller Be sure to change the upper lower rollers as a set 1 Remove the rollers in the order above 2 Loo...

Страница 10: ...sing 㨯Lift the machine with 2 people or use a hoist The machine is heavy Lifting it by yourself could result in injury 1 Fully open the front chuck 2 Pull the carriage fully towards the front chuck Fig 9 3 Place the mount kit on the carriage support bar and tightly secure the connecting shaft in the front chuck Fig 10 4 Place the hook over the carriage support bar and fix it in position Tighten th...

Страница 11: ... Fig 13 㨯Failure to do so may result in the machine and pipe falling over thereby causing an accident 1 Setting a pipe 㨯Insert the pipe to be machined until it comes into contact with the lower roller flange collar Fig 12 2 Pipe height adjustment 㨯Since the pipe threading machine is approx 2ࠑ off horizontal adjust the pipe stand height so that the pipe is 2 degrees lower Fig 13 2ࠑ lower than horiz...

Страница 12: ...y shifting it 0 5ࠑ to the main shaft 㧍 WARNING 㨯If the pipe is set straight on the main shaft or set in the opposite direction it will come off while grooving and fall off which could be dangerous Fig 14 Pipe centre Pipe threading machine Centre of main shaft 0 5q ...

Страница 13: ...ighten the adjusting nut Fig 18 Hold the spacer in position so that the thickness matches the size of the pipe you are working on Fig 20 The spacer is used as a reference when adjusting groove depth After an initial trial use the adjusting nut to fine tune to the appropriate groove depth If the groove is too shallow turn the adjusting nut anti clockwise to increase the depth of the groove Converse...

Страница 14: ...ing machine has a switch for changing directions use in the forward normal direction position for cutting threads Fig 23 3 Grooving 4 Turn the threading machine on to start the pipe rotating Allow the pipe to rotate several times to ensure that the pipe does not slip away from the lower roller flange 㧍 CAUTION 㨯If you use the machine in the opposite direction to threading reverse the pipe may fall...

Страница 15: ...pe may differ slightly depending on the joint In such a case make sure you check the machining size according to the specified size table for the joint used Push the handle once for each rotation of the pipe Push the handle once for every two rotations of the pipe Table 5 Schedule 10 Schedule 40 25 32 40 50 65 80 100 125 150 34 0 42 7 48 6 60 5 76 3 89 1 114 3 139 8 165 2 30 4 39 1 45 0 56 9 72 2 ...

Страница 16: ...re is too great ޓ bell mouth The pipe slips off the lower ޓ roller when grooving The pipe slips while it is being ޓ processed and doesn t rotate ޓ smoothly Operating the pump doesn t ޓ increase the depth of the ޓ groove Oil leaks from the hydraulic ޓ unit The adjusting nut is too tight The pump valve and or packing are ޓ damaged resulting in insufficient ޓ pressure The cylinder packing is damaged ...

Страница 17: ... and the machine will be damaged Replace them if necessary 4 Periodical lubrication C ޓޓ To prevent burning or galling be sure to lubricate regularly ޓޓ When replacing rollers apply grease to the entire circumference of the upper roller shaft and to the ޓޓޓ ޓ inside of the lower roller ޓޓ Remove the upper roller every two weeks and replenish the bearings with grease ޓޓ Apply grease to the grease n...

Страница 18: ...ccording to the Operation Manual or if it has been remodeled if blades or consumables need replacing if the machine has been handled in an inappropriate way 2 REX will accept no responsibility under the following circumstances fire damage from flood earthquakes lightning or other natural disasters malfunction or accident resulting from pollution or abnormal voltage when the machine has not been op...

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