Rebar Tools DBR-25WH User manual

DBR – 25WH
REBAR STRAIGHTENER
HANDLING INSTRUCTIONS
READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING TO USE REBAR
STRAIGHTENER
Ignorance of proper operating procedures can lead to accidents.
If in doubt of any procedure, contact your local authorized agent.
DBR-25WH Inst Manual.indd

GENERAL SAFTEY PRECAUTIONS
Application: Use DBR-32WH on concrete re-enforc-
ing bars only.
RESTRICT USE TO DESIGNATE MATERIALS
There is always a chance that the end of material may
break and shoot out, especially if the material is harder
than those specied. Exceeding designated material
specications greatly increase this risk and will also
damage the tool. Do not attempt to use the tool for
rebar harder, thicker, or thinner than those specied.
USE EYE PROTECTION
Wear safety goggles, safety glasses with side shields
or a face shield when using the rebar straightener.
KEEP HANDS AWAY
Do not touch rebar, housing, hook, rollers, and/or the
piston while rebar straightener is being operated.
GUARD AGAINST ELECTRIC SHOCK
To avoid possible electric shock, do not handle the
DBR-25WH with wet hands, or use in the rain or other
damp places. Be aware of all power lines, electric
circuit and other hazards that may be contacted, es-
pecially those that are below the surface or otherwise
hidden from view.
UNPLUG TOOL
Disconnect the tool from outlet when not in use
and before cleaning, adjusting, or servicing. Do not
disconnect plug from outlet by pulling on the cord.
Always check that the switch lock is OFF before plug-
ging your tool in.
BEWARE OF YOUR ENVIRONMENT
Do not use rebar straightener in the presence of am-
mable materials (e.g., paint, thinner, petroleum prod-
ucts, and adhesives.) Do not use rebar straightener in
a possibly explosive environment, (e.g., fumes, gas, or
dust) or in areas that are poorly ventilated.
KEEP WORK AREA TIDY AND WELL LIT
Make sure that work area is properly lighted and clear
of obstructions. Operator should at all times have an
unobstructed view of their rebar straightener, rebar,
and the surrounding area.
WEAR PROPER APPAREL
Do not wear loose clothes, dangling objects, or jew-
elry. Restrain long hair. The use of a safety helmet
and rubber soled boots are strongly recommended.
If safety gloves are worn, be especially careful that
gloves do not get caught in the moving parts.
KEEP VISITORS AWAY
Keep all visitors at a safe distance from the work area
for their own protection and to prevent distraction of
the operator.
Max Rebar Diameter 25 mm
Straightening Max yield point 345N/mm2
Bending Max yield point 295N/mm2
Rebar Diameter Straightening Capacity Bending Capacity
Push Pull Push Pull
13 mm up to 125° up to 121° up to 94° up to 92°
16 mm 128 124 90 90
20 mm 130 126 90 90
25 mm 132 124 90 90
Max pressure 11 Tons 8.5 tons 11 tons 8.5 tons
Output 1.5 HP
Weight 22.5 Kg
Dimension 660x270x200mm (LxWxH)

MAINTAIN REBAR STRAIGHTENER WITH
CARE
Inspect rebar straightener before each use. Faulty or
loose bending hook could possibly result in personal
injury. Keep handle dry, clean and free from oil and/
or grease. Keep housing and piston free of dirt and
iron lings. Check that no screws or bolts are loose
or missing. Follow all instructions for maintenance.
Inspect switch, cord, plug and any extension cable at
regular intervals.
STORE CAREFULLY
When not in use, store rebar straightener and its acces-
sories in a dry place where they cannot be accessed by
anyone but the operators.
PARTS AND SPECIFICATIONS (Figure 1)
1. Handle
2. Switch
3. Mode control lever
4. Oil plug
5. Front handle
6. Hook
7. Roller
8. Housing
9. Motor
OPERATING INSTRUCTIONS
Check the oil level.
Check that the power source is appropriate to the rebar
straightener.
CARE- If voltage is too high, the motor will burn out,
if voltage is too low, insufcient power will be gener-
ated.
NEVER USE DC CURRENT OR
AC HIGHER THAN 110V
Check that the power supply is properly earthed.
CAUTION- Failure to properly earth the power supply
may result in a shock to the operator.
Check that the cord is undamaged and that the plug is
not loose.
CAUTION- Cut or abraded covering could result in a
short and electric shock to the operator.
If an extension cord is to be used, make sure that it is
undamaged and that it is the proper thickness for the
length. See table below.
Before plugging the tool in, make sure that the switch
lock is off.
CAUTION- If switch lock is ON; the rebar straight-
ener will start as soon as it is plugged in. To disengage
lock, pull the trigger switch, the lock button will pop
out.
WARM UP
In cold weather, warm up the unit for 30-60 seconds
so that the hydraulic oil will reach the proper viscosity.
Pull the trigger switch to extend the piston and release
when it has reached its full stroke. Repeat this action
3-5 times.
POINTS OF ATTENTION
Do not cover air vents.1.
CARE- If vents are covered, the motor will over-2.
heat and may burn out.
If hydraulic oil exceeds 70*C, (158*F) the power 3.
will drop. Allow the unit to cool before resum-
100/115V 230V
Cable
Length
Cable Size
(AWG)
Nominal
Diameter
Up to 10m (33 ft.) 16 1.0mm2
Up to 15m (50 st.) 14 1.25mm2
Up to 30m (100ft.) 10 1.5mm2

ing operation. (Be particularly careful in summer,
when the aluminum pumpcase heats up quicker.
If a drop in power is observed and motor is unusu-4.
ally hot, check the carbon brushes.
OPERATION
The DBR-32WH is primarily intended to straighten
deformed rebar. It can, or course, also be used to bend
straight rebar.
To enable the unit to be used in conned spaces, there
are two operating modes: Push & Pull. The mode is
selected by moving the mode control lever to the ap-
propriate position.
“A” for push (piston advances) and “B” for pull (pis-
ton retracts) In either mode, simply press the switch to
move the piston.
NB: The movement of the piston is limited by a safety
valve. To prevent overheating, release the trigger
switch when the piston has reached its travel limit.
TO PUSH
Advance or retract the piston so that the hook is in a
suitable starting position. Set the mode control lever to
“A” and t the rebar as shown at the left. Pull the trig-
ger switch until the rebar is at the desired angle.
TO PULL
Set the hook in the correct starting position , make
sure that the mode control lever is in the “B” position
and t the rebar as illustrated. Pull the trigger switch
until the desired angle is attained.
NB: It is important that the rebar be properly tted in
the hook and against the rollers.
INTERIOR ANGLE
Since the piston stroke is limited, interior straightening
/ bending angle will vary according to rebar diameter
and operating mode. Refer to the table below.
CLEANING
Clean rebar straightener everyday, preferably immedi-
ately after use.
CAUTION- Wear gloves to protect hands from metal
splinters. Do not use air guns – Blasting with air guns
can cause metal lings and/or dust to get into eyes and
respiratory system.
Disconnect unit.1.
Wipe or brush away all dirt and metal lings. Pay 2.
particular attention to the lower half of the piston,
where dirt is more easily accumulated.
Once the piston has been retracted, pull the trigger3.
switch long enough to partially unplug unit. Check
the piston for accumulated dirt and iron lings that
may be jamming the piston.
OIL LEVEL CHECK
As rebar straightener is hydraulically operated, the oil
level must be checked at frequent intervals, preferably

everyday. Failure to maintain the oil at proper levels
will result in a drop in pressure and loss of the benders
hydraulic power.
CAUTION- Hydraulic oil is highly ammable. Keep
away from sparks and naked ame. DO NOT SMOKE
WHEN NEAR OIL/BENDER.
CAUTION- Hydraulic oil may cause inammation of
the eyes and skin. If ingested, it will cause diarrhea
and vomiting.
In case of eye contact, rinse in clean water for at least
15 minutes and consult a physician immediately, as
blindness can occur.
In case of skin contact, wash thoroughly with soap and
water.
In case of ingestion, consult a physician immediately.
DO NOT DELIBERATELY INDUCE VOMITING.
OIL MAINTENANCE CON’T.
Oil should be warm, but not hot. Warm up the unit1.
if cold.
Unplug unit from the power source.2.
Remove oil plug and the seal washer (packing)3.
CAUTION- Never remove oil plug when unit is4.
hot, as the oil may spurt over.
Check that oil is level with the bottom of the plug5.
hole (i.e. the pump case is full to the brim) If oil
level is too low, top up with 20- weight hydraulic
oil with anti-foam and anti- abrasion properties
(ISO viscosity grade VG46, e.g., Shell Tellus 46,
Mobil Oil DTE-25, or Esso Uni Power SQ46)
After topping up, extract air from the system. Gen-6.
tly tilt the unit and return it to the level position.
Top up again and tilt in the opposite direction.
Repeat this action until all air has been removed.
CARE- Rebar straightener cannot function prop-7.
erly if oil contains air bubbles.
Replace seal washer and plug. Extend to its full 8.
stroke, and remove oil plug and seal washer. Then
repeat the procedure of above
Replace the oil plug and seal washer.9.
OIL CHANGE
The hydraulic oil should be changed at least once a
year, sooner if it appears to be dirty.
Unplug the unit from the power source. Remove1.
the oil plug and packing. Turn the unit over and
drain oil into an appropriate receptacle.
With drain hole uppermost, slowly ll the unit 2.
with fresh oil. Replace plug and lightly tighten.
Connect the unit to power source and advance pis-
ton two or three times. Unplug the unit and remove
the oil plug. Top up the oil level and replace plug.
Finally, follow procedure for oil level check.3.
NB: Dispose of hydraulic oil in accordance with lo-
cal regulations. Do not pour into sea, a river, lake or
drains.
BOLT TIGHTNESS
Once a week, or after every 30 times use, check the
tightness of all bolts, especially those securing the
housing to the cylinder.
CARBON BRUSHES
Inspect the two carbon brushes at least every two
months. (Normal brush life is around 200 hours.
CARE- Warn carbon brushes will result in power loss,
cause the motor to run hot and irreparably damaging
the armature’s commutator.
Disconnect unit.1.
Unscrew both brush caps and pull out the carbon2.
brushes.
Replace the brushes if less than 6MM in length.3.
OVERHAUL
Return the unit to an authorized agent for overhaul at
least once every two years, sooner if subject to heavy
usage.
Benner-Nawman, Inc.
3450 Sabin Brown Road
Wickenburg, AZ 85390
[phone]
[phone]
Fax: [phone]
[email protected]
bnrebartools.com

Portable #8 Rebar Bender
DBR-25WH
The DBR-25WH is a portable heavy-duty electric/hydraulic rebar
bender and straightener. It helps save valuable man-hours by
cleanly and efciently bending or straightening bent rebar. It func-
tions as a simple 90-degree portable electric rebar bender. The in-
terchangeable bending hook covers rebar diameters from #4 to #8
grade 60. Maximum pressure for bending and straightening ranges
from 8.5 to 11 tons. It’s portable and versatile enough to bend or
straighten rebar in-place with its push/pull hydraulic capabilities.
It will bend a 90-degree angle in only (4) seconds. The bending
head also rotates 360 degrees. Ships complete in a wooden car-
rying case with hydraulic oil, a tool kit and two additional bending
dies. This tool solves bending applications other tools can’t even
attempt.
Maximum Bending Diameter 1” #8 Rebar (25mm) Grade 60
Bending Angle Up to 94 degrees (1/2”) - up to 90 degrees ( 1”)
Voltage/ Amperage 115V 50/60Hz / 12 amps
Tool Weight 57.3 lbs (26 kg)
Dimensions L x W x H 25.75” (660mm) x 10.5” (270mm) x 7.8” (200mm)
Benner-Nawman, Inc.
3450 Sabin Brown Road
Wickenburg, AZ 85390
[phone]
[phone]
Fax: [phone]
[email protected]
bnrebartools.com