Lefon R Series User manual

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Operation Manual Page 1 of 27
Operation Manual
R Series Orbital Cutting/Beveling Machine
R4, R6, R8, and R12

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Operation Manual Page 2 of 27
December, 2007 Version 2. 1
Table of Contents
Section 1: Operation Safety................................................................................................................................................. 3
Keep Safety in Mind ........................................................................................................................................................ 3
Danger of death by electric shock................................................................................................................................... 4
Danger of injury by sharp cutting edges.......................................................................................................................... 4
Disposal........................................................................................................................................................................... 4
Section 2: Machine Application & Specification................................................................................................................. 5
Machine Application ....................................................................................................................................................... 5
Machine Weight and Dimension ..................................................................................................................................... 5
Technical Specification................................................................................................................................................... 6
Section 3: Assembly & Transport Instructions .................................................................................................................... 7
Scope of Delivery ............................................................................................................................................................ 8
Installation....................................................................................................................................................................... 8
Transportation and Fitting of the machine....................................................................................................................... 9
Section 4: Operation Procedure ........................................................................................................................................ 11
Install the saw blade/beveling cutter ............................................................................................................................ 11
Install additional cutters................................................................................................................................................ 12
Adjustment for different size pipe.................................................................................................................................. 14
The usage of Cut-off Stop.............................................................................................................................................. 16
Motor speed selection................................................................................................................................................... 17
Pipe cutting process...................................................................................................................................................... 18
Pipe beveling process ................................................................................................................................................... 20
Simultaneous cutting and beveling ............................................................................................................................... 22
Hard plastic cutting process ......................................................................................................................................... 22
Section 5: Maintenance & Troubling Shooting.................................................................................................................. 24
Maintenance summary.................................................................................................................................................. 24
Gear oil level check and change ................................................................................................................................... 25
Slide guide cleaning ...................................................................................................................................................... 26
Trouble Shooting ........................................................................................................................................................... 27

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Operation Manual Page 3 of 27
Section 1: Operation Safety
The R series Pipe Cutting and Beveling machine are
designed to last. Please use it properly based upon the
procedure in this manual. Using it for purpose other
than those described in this manual may cause injury to
the user or to others. It may also cause damage to the
machine or other equipment.
Therefore:
•Always ensure the machine is in good working
condition and comply with these notes on safety
•Keep complete documents nearby the machine
•General valid regulations for the prevention of
accidents must be observed.
•Only use the machine for cutting and beveling of
pipes
•Damage caused by not following the manual is
user’s responsibility
•Only use the dimensions and material specified
in these instructions. Consult LEFON for cutting
material that is not covered in the manual.
•Inspect the machine daily of visible sign of wear
or damage.
•Repair any damage or defect immediately
•Only qualified electrician can work on the
electrical equipment
•Only operate the machine if the Electrical
Restart Inhibitor is working properly
•Unplug the power input before carrying out any
maintenance or repair work on the machine.
Keep Safety in Mind
•Report any unusual response from the machine
to the person in charge of this machine
•Keep Safety in mind all the time
•Wear protective goggles, safety gloves and ear
protection when working with the machine
•Keep hands off the machine during processing
•Pay attention to the surroundings. Don’t use any
electric tools in humid area. Make sure to have
excellent lighting. Do not working near
combustible liquids or gases.

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Operation Manual Page 4 of 27
Danger of death by electric shock
If the main cable is damaged, live parts may cause
death when touching directly.
•Keep the main cable of the machine motor away
from the saw blade or beveling cutter
•Secure the falling pipe piece
•Don’t let the cut-off piece of pipe drop in an
uncontrolled way
•Don’t run the machine unattended
•While cutting the pipe, always pay attention to
the positions of the main cable.
Danger of injury by sharp cutting edges
•Keep hands away from the machine during
cutting or beveling
•Wear safety gloves
Disposal
•Recycle discarded electric tools and
accessories containing valuable materials
•Dispose of chips and used gear oil according to
regulation requirement

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Operation Manual Page 5 of 27
Section 2: Machine Application & Specification
Machine Application
•Plastic(PE,PP,PVDE,PVC)
•Copper
•Brass
•Annealed cast iron pipe
•General structural steel
•Black and galvanized steel pipe
•Aluminum
•High quality steel (Cr<12 % and Mo< 2.5 %;
Cr<20 % and Mo=0 %)
oCase hardened steel
oHigh speed steel
oTempering steel
oBearing steel
oTool steel
•High quality stainless steel( any Cr and Mo
content *)
* Only workable with RH
Machine Weight and Dimension
Model LxWxH (mm) Net Weight(kg) Gross Weight(kg)
R4 820×540×470mm 75 100
R6 920x870x570mm 90 117
R8 1050×590×670mm 105 133
R12 1050×590×790mm 126 155

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Operation Manual Page 6 of 27
Technical Specification
Power 1600 W
Protection Double insulated
Speed 150 – 270 RPM (R2 to R12)
40 – 70 RPM (RH)
Drive Motor 1 phase AC motor
200-240 V, 50/60 Hz
100-120 V, 50/60 Hz
Cutting Range Specified in the following table
Model
R4 R6 R8 R12
½”-4” 3”-6” 6”-8” 8”-12”Pipe OD
19-120 mm 85-182 mm 150-230 mm 215-325 mm
0.04”-0.22” 0.08”-0.4” 0.08”-0.4” 0.08”-0.4”Wall thickness
1-7 mm 2-10 mm 2-10 mm 2-10 mm
Motor 1600 w 1600w 1600w 1600w
Blade RPM 150-250 150-250 150-250 150-250
Voltage/
Frequency
110/220 V
50/60 Hz
110/220 V
50/60 Hz
110/220 V
50/60 Hz
110/220 V
50/60 Hz
75 kg 90 kg 110 kg 130 kgNet Weight
165 lb 198 lb 242 lb 286 lb
Application •Thin-wall stainless-steel tubes
•Stainless steel pips
•Low and unalloyed steel
•Casting materials, non-ferrous metal
•Copper, aluminum and plastic pipes

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Operation Manual Page 7 of 27
Section 3: Assembly & Transport Instructions

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Operation Manual Page 8 of 27
Scope of Delivery
One set of pipe cutting/beveling machine should include
the following item. Please inform the manufacturer or
forwarder of any missing parts or transportation
damage immediately.
1. One pipe cutting/beveling machine
2. One base plate
3. Three blade
4. One ring spanner(SW22)
5. Two Hexagon socket head wrenches
6. One Tube of LEFON saw blade lubricant
7. One operation Manual
8. One Spare parts List
Installation
Step 1: Install the base plate
Step 2: Mark and prepare to perforate
Step 3: Drill 13 mm holes
Step 4: Install the cutting machine on base plate (follow
the procedure in next page)

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Operation Manual Page 9 of 27
Transportation and Fitting of the machine
Danger of death or injury caused by electric shock
•Disconnect power before transporting, mounting
or dismounting.
•Transport and fit the machine with the aid of
crane or similar lifting device
Fitting Instruction for R2, R4, R6 and R8
Step 1:Clamp a suitable pipe of sufficient length
centrically in the vice
Step 2:Position transport belts around the pipe on both
sides
Step 3: Raise the machine on the belts and guide it
sideways onto the fitted quick-assembly plate
Step 4: Bolt the machine securely in place with the
hexagon bolt (1).

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Operation Manual Page 10 of 27
Fitting Instruction for R12
Step 1: Guide the hook from the crane into the shackle
(2) and slide onto the fitted quick-assembly plate from
the side
Step 2: Bolt the machine securely in place with the
hexagon bolt (1)