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Related Manuals for Power NRB-22
Summary of Contents for Power NRB-22
- Page 1 ELECTRIC REBAR BENDER HANDLING INSTRUCTIONS NRB-22 NRB-25 NRB-32...
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Page 2: Table Of Contents
READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING TO USE.Ignorance of proper operating procedures can lead to accidents. If in doubt about any procedure, contact your nearest authorized distributor. CONTENTS General Safety Precautions Parts and specifications Operating Instructions Pre-use checks Warm-up Stopper adjustment Points of attention Maintenance Cleaning... -
Page 3: General Safety Precautions
GUARD AGAINST ELECTRIC SHOCK To avoid possible electric shock,do not handle bender with wet hands or use bender in the rain or damp places.Be aware of all power lines,electric circuits... - Page 4 hidden from view. UNPLUG TOOL Disconnect bender from outlet while not in use and before cleaning,adjusting or servicing.Do not disconnect plug from outlet by pulling the cord.Always check that the switch lock is OFF before plugging in. BEWARE OF ENVIRONMENT Do not use bender in the presence of flammable materials(e.g.
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Page 5: Parts And Specifications
protection And to prevent distraction of the operator. MAINTAIN BENDER WITH CARE Inspect bender before each application.Keep handle dry,clean and free from oil and/or grease.Keep housing and piston free of dirt and iron filings.Check that no screws or bolts are loose or missing.Following instructions for maintenance.Inspect switch,cord,Plug and any extension cable at regular intervals. -
Page 6: Operating Instructions
Main Parameters Model NRB-32 NRB-25 NRB-22 Voltage + 5% □100/115V □220-240V AC only Wattage 1600 W 1500W 1200W Dimensions 560*260*200 560*170*220m 580*170*210m Weight 24 Kg 16 Kg 15KG Max.rebar 32 mm 25mm 22mm diameter Min.rebar diameter Max.rebar Tensile strength 650N/mm2... -
Page 7: Pre-Use Checks
2. Check condition of bender blocks and tightness of bender block bolts. 3. Check that the power source is appropriate to the bender CARE: if voltage is too high,the motor will burn out.If the voltage is too Low,insufficient power will be generated.Never use DC power. -
Page 8: Points Of Attention
Allow unit to cool before resuming operation.(Be particularly careful in summer, when the aluminum pump case heats up quicker.) If a drop in power is observed and motor is unusually hot, check carbon-Brushes. OPERATION The NRB-32 is primarily intended to straighten deformed rebar. It can or course , also be used to bend straight rebar. - Page 9 operating modes: PUSH & PULL. The mode is selected by moving the mode control lever to the appropriate position. “A” for push (piston advances) and “B” for pull (piston retracts) in either mode, simply press the switch to move the piston. NB: The movement of the piston is limited by a safety valve.
- Page 10 TO PULL Set the hook in the correct starting position, make sure that the mode control lever is in the “B” position and fit the rebar as illustrated . Pull the trigger switch until the desired angle is attained. NB: It is important that the rebar be properly fitted in the hook and against the rollers.
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Page 11: Maintenance
As the bender is hydraulically operated,the oil-level must be checked at frequent intervals,preferably every day.Failure to maintain the oil at the proper level results in a drop in pressure and loss of bending power !CAUTION: Hydraulic oil is highly flammable.Keep away from sparks and naked flame.Do not smoke. - Page 12 Anti-foam and anti-abrasion properties (ISO viscosity grade VG46, e.g. Shell Oil Tellus 46, Mobil oil DTE-25 or Esso Uni power SQ46 ). 7. After topping up, extract air from system.Gently tilt cutter lengthwise and Return it to a level position.Top up again and tilt in the opposite direction.
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Page 13: Oil Change
8. Replace seal washer (packing) and plug. Connect cutter to power source and completely sever rebar. OIL-CHANGE The hydraulic oil should be changed at least once a year,sooner if it appears dirty. 1. Unplug unit from power source. Remove oil-plug and packing.Turn bender Over and drain oil into a suitable... -
Page 14: Carbon Brushes
CARBON BRUSHES Inspect the two carbon brushes at least once every two months,(Nominal brush life is 200 hours). CARE: worn brushes will result in power loss, cause the motor to run hot And irreparably damage the armature’s commutator. Disconnect unit.
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