Range Road RR5055 User manual

Range Road Enterprises Ltd
Box 944
Eckville AB T0M 0X0
www.range-road.ca www.range-road.com
Page 1
RR5055 Automatic Band Saw Blade Grinder

Range Road Enterprises Ltd
Box 944
Eckville AB T0M 0X0
www.range-road.ca www.range-road.com
Page 2
Applications and Features
This tool is used for grinding band saw blades, It can also be used for grinding of double metal band saw
blades, it can grind both the tooth throat and the rear.
The machine has a compact structure, convenient adjustment, high grinding precision and a high degree
of automation.
Technical Data
1. Saw blade width size 6 - 75mm
2．Grinding teeth range 2 - 30mm
3．Tooth grinding feed rate 0 - 63 teeth/min
4．Grinding head motor 250W110V60Hz
5．Feed motor 15W110V60Hz
6．Grinding wheel size φ150 φ32×10mm
7．Grinding wheel speed 2800RPM
Structure overview
The machine consists of four parts: the grinding wheel head assembly, the feed assembly, the saw blade
bracket and the casing. The grinding head consists of a special single-head grinding wheel motor.
The feed is driven by the gear reduction motor to drive the grinding and feeding operation. The guide rail
uses a precision linear bearing to ensure high precision. The grinding table can be adjusted according to the
tooth angle.

Range Road Enterprises Ltd
Box 944
Eckville AB T0M 0X0
www.range-road.ca www.range-road.com
Page 3
Instructions
1. Saw blade installation
First retract the adjustment lever 19 a short distance, then twist the pressure roller bracket 10 to the right,
release 15, and then lift the compactor handle 13, rotate 90°, then open the pressure plate 20, put the saw
blade in and adjust the position of the saw blade with 16 so that the saw tooth tip connecting line and the
edge of the pressing plate are parallel and the bottom line of the saw blade is positioned 2-3 mm from the
edge of the pressing plate. Cover the plate, tighten the saw blade, and rotate the compactor to the center of
the plate. Rotate the pressure roller bracket to press the pressure roller 9 against the saw blade.
Attention: As shown in the figure, the angle between the axis of the pressure roller 9 and the advancing
direction of the saw blade must not be greater than 90°, so that the blade can always be placed against the
blade bar 16 when it advances, and will not be deflected. The angle of the blade can be adjusted by 7.
2. Adjusting the angle of the table
Loosen the screw 15 on the compactor support and the table plate 21 can be rotated. The angle of rotation
depends on the size of the saw tooth angle (generally the front of the saw tooth can be placed against the
inner side of the grinding wheel.) After the angle is adjusted, tighten the screws 15 to secure the table.
3. Grinding wheel dressing
If the angle of the bevel on the grinding wheel is off from the angle of the saw tooth, it should be dressed.
Trimming can be done with a diamond pen, or a hard ceramic wheel can be used.
4. Pushing tooth position adjustment
The general rule for grinding teeth is: which tooth is used to push the tooth to be ground. This requirement
can be achieved by adjusting the hand wheel 26.
5. Adjust only one tooth at a time (tooth distance adjustment)
Rotate the handle 2 to adjust the number of teeth that the push-tooth hook pushes each time. Generally when
the tooth is ground, the push hook pushes only one tooth at a time.
6. Grinding the back of the tooth
If the back of the tooth is to be ground, this can be achieved by adjusting the relative positions of the cams 17
and 18. This step needs to be performed after the first five steps have been completed. The specific operation
is: stop state, loosen the screw on the cam 18, and point the pointer on it to the scale 5, and then tighten the
screw, then turn the cam by hand to observe the contact between the back of the tooth and the grinding
wheel when pushing the tooth. If it is not in contact, loosen the screw again, so that the index of the pointer
on the cam 18 is increased. (If the contact is too tight, the index must be made smaller.) When the cam is
rotating (during the feed, for example), the front of the serration and the tooth when the back side is in light
contact with the grinding wheel, the adjustment is basically in place. At this time, you can start the machine
and observe.
Note: Before turning on the power, first adjust the lever 19 back a short distance, and then slowly feed it to
prevent the saw tooth from being worn out.

Range Road Enterprises Ltd
Box 944
Eckville AB T0M 0X0
www.range-road.ca www.range-road.com
Page 4
Maintenance and precautions
1. The saw blade interface must be smoothed before grinding, and there should be no obstacles when the
saw blade advances.
2. Before starting and after stopping, the feed adjustment lever 19 must be retracted by a short distance
to prevent the grinding when starting up.
3. This machine can be used in places where the altitude is not more than 1000 meters, the ambient
temperature is -15°C to 40°C, and the relative humidity of the surrounding air is not more than 95%. The
temperature rise of the motor is not more than 80°C.
4. The linear guides are to be lubricated once every three months, and the other rotating parts are
lubricated with oil as needed.
5. Clean off dust frequently and keep the countertop and electrical system clean and dry.
6. To replace the grinding wheel, just loosen the screw on the rounded corner of the protective cover and
remove the outer cover. Before replacing, you should first check whether the speed rating of the new
grinding wheel is consistent with the specifications listed in the manual. If it is lower than the regulations,
it should not be used. When installing the new grinding wheel, the soft gasket on the chuck and the
grinding wheel should be properly placed, and the grinding wheel should be balanced, and there should
be no obvious yaw or vibration. The clamping wheel nut should also not be over-tightened to prevent the
wheel from cracking. After the grinding wheel has been replaced, re-installed the protective cover and re-
install the screws on the circumference of the housing.
7. After replacing the grinding wheel, the grinder should be test operated. The wheel movement should be
smooth and quiet, and there should be very little vibration. When testing, you should stand to the side of
the grinder for safety.

Range Road Enterprises Ltd
Box 944
Eckville AB T0M 0X0
www.range-road.ca www.range-road.com
Page 5
Parts List
Item
Name
1
Push tooth pin
2
Push pitch adjustment screw
3
Push pin adjustment plate
4
Push arm
5
Left pressure wheel adjustment button
6
Left pressure wheel
7
Right pressure wheel lever angle adjustment
8
Intake and retraction rod bearing
9
Pressure roller (right)
10
Pressure roller plate (right)
11
Right pressure wheel adjustment seat
12
Left pressure wheel
13
Compressor handle
14
Right pressure roller compression screw
15
Compressor support
16
Saw blade Baffle
17
Front and rear feed cam
18
Push tooth cam
19
Front and rear adjustment lever stick
20
Saw blade press plate
21
Workbench
22
slide seat
23
Adjustment support
24
Grinding wheel
25
Front and rear adjustment wheel
26
Grinding wheel front and rear adjustment wheel