Rima RS26G User manual

RS PORTABLE SAWMILL
2019
RS26G/31G
WARNING:
Read carefully and understand all ASSEMBLY AND OPERATION INSTRUCTIONS before operating.
Failure to follow the safety rules and other basic safety precautions may result in serious personal injury.

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SAWMILL ASSEMBLY
1. UNPACKING
Unpack the contents of the crate except for the sawmill head and the two long boxes in the bottom
that contain the two sections of track. Unbolt the front of the crate and lay 6” (150mm) high support
blocks in front of the crate. Bend the front of the crate down. Carefully lay the sawmill head and the
cardboard down onto the 6” (150mm) support blocks. Slide the sawmill head out of the crate as
shown below.
The two long track boxes may now be removed from the crate and the crate be placed out of the way.

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2. TRACKS
Assemble the track system with the provided nuts & bolts. It is important to assemble and level the
track on a firm foundation before tightening all of the nuts and bolts. It is ideal to assemble the tracks
on a solid and level footing that is a minimum of 4” (100mm) off of the ground. This will allow for easy
cleanup of sawdust from under the tracks and height adjustment of the log supports.
The width of the track should be assembled so that it is 31.0” (800mm) -35.0”(900mm) wide when
measuring the width from the outside to outside of the “L” rails.

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90 degrees
The pictures below show the assembly of the log bunks to the “L” rails. Ensure that the two end
bunks are square (90 degrees) to the track ‘L’ rails.
Assemble carriage stops at the ends of the tracks (4 stops total) and tighten bolts as shown below.

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3. LOG DOG & SUPPORTS
Assemble log dog pieces using the pieces shown below.
Attach log dog assembly to track as shown below with the 2 M8x20mm bolts and nuts provided.
Note that there are various locations along the track where this assembly can be bolted. Depending
on how many track sections are being used, select a log clamp position that will secure the log firmly
against the log supports.

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Insert log supports into track cross supports and secure with “T” handles as shown in the picture
below. The “T” handle threads should be coated with grease. The sawmill includes two sets of log
supports –a short set and a long set. The longer set is ideal for larger logs and the shorter set is
ideal for small logs and square cants.

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Note:
a. After assembly, the center to center distance of the guide must be between 889-901mm.
b. Adjust the nut on the footing (10) so that the upper plane of the guide rail is on the same
horizontal plane and the front and rear errors are within 2mm.
c. The wood clamping device (3,4,5,6,7) is placed in two positions in the middle of the track.
d. After adjustment, lock the nuts to make the whole guide rail parts fixed.

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4. SAWMILL HEAD ASSEMBLY
a. Place the support plate (46) horizontally and insert the two columns (47) into the appropriate position of 46.
Fix the bolts and nuts (48-1), then fix them (48-2), and then insert the steel wheel (78) into the bolts (48-2) to remove
the nuts and tighten them..
b. Place the saw head flat and insert the (46,47) assembly.
Insert the (80-1,80-2) rear post into the (46) proper hole position and fix it with four (41) bolts
c. Take 2 pieces of (51) wheel frame and 2 pieces of (52) regulating wheel and 2 pieces of (53) regulating
wheel guard plate and insert them into 2 pieces of (54) screws for fixing,
and then install the other end in the same way
b. Install the installed wheel rack left and right in the holes of the column (47)
and (80-1*80-2) and fix them with (54) bolts and nuts
c. Take (40) rear guard plate and fix 3 pieces of (41-1) bolts on the rear guard plate respectively
d. Take (43) assembly, take (41-2) screw installed in (80-2) hole, and then take (41-3 screw fixed in (40) center hole
tighten
e. Then connect the wire rope (82-1) and (82-2) and adjust the saw blade level.
f. Install the water tank rack, take (50) and (81) bolts and fix them on (80-1). Put the water tank in (50) and connect it
with 30 with a water pipe
g. Handle connection. The (55.56.57) assembly is held in place (80-2) with two (58) clips and connected to the throttle
stay (83).
h. Ruler installation. Take the ruler (35) and fix it on the back guard of the saw wheel with (84).
i. Take the ruler base (36), fix it on (46) with two (84) bolts and adjust the clearance with the ruler before tightening it.
j. Check the screws on each part and tighten them one by one.

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With the saw head resting about 6” (150mm) above the ground. Slide the 2 front posts into the slots
as shown below.
Using 4 of the M12 x 70mm bolts, washers and lock nuts, attach the saw head carriage plate
assembly to the bottom of the posts. Be sure the carriage wheels are located to the inside. Fully
tighten these 4 bolts so the plates are firmly attached to the posts. The posts should be pushed all
the way up until the carriage plates contact the sawmill head.

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With the help of another person, stand the saw head to its upright position.
Attach the back handle between the plates using 2 of the M12 x 70mm bolts per side. Do not fully
tighten these bolts at this time.

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Front explosion diagram.
Rear explosion diagram

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Adjustment and operation
1. Rotate (62) adjust the handle to make the saw blade reach the appropriate stretching force.
2. Rotate the saw wheel to check whether the saw blade is off-tracking. If this is the case,
adjust the rear adjustment bolts up and down until qualified
3. The eccentric shaft moves back and forth to make the saw blade's serrations (about 7mm-8mm) The correct distance
4. Install the water pipe on the water tank, and then insert the other end of the water pipe into the hole of the support rod of
the (30) guide frame and fix it

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1. PLACING THE HEAD ON THE TRACK
Before placing the head on the track, the carriage wheel spacing can be set to ensure they will fit
properly on the “L” rails. Check the wheel spacing to ensure that a distance of 35.4” (900mm) is
measured from outside to outside of the wheel grooves as shown below.
To adjust the width of the wheels, washers may be added or removed from each wheel to ensure a
distance of 35.4” (900mm) is achieved.

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At this point, most of the sawmill head bolts should only be hand tight. They will be fully tightened
when the head is on the track and has settled in a true and square state.
Two people are needed for this. Start by removing the “L” shaped brackets on the end of the tracks.
The head can be walked over to the track until it is positioned behind the track as shown below.
Once in this position, the head can be tilted backwards so that the front two wheels are off the
ground. The head can then be walked in place whereas the two front wheels rest it on the track so
that the grooves in the carriage wheels fit around the “L” rails. Finally, two people can lift up on the
back of the sawmill head and walk it forward so that two back wheels are situated on the track.
Finally, the “L” shaped brackets can be re-attached to the track rails.
With the saw head now resting on the track, all of the saw head bolts may be tightened up.

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Using a tape measure, take a measurement from the blade to the top of the log bunk on both the left
and right side. The distance should be equal on both sides. If it isn’t, you will need to adjust the cable
ends on the right side to either raise or lower the right side. Refer to the step below for adjustment
instructions.
Using a 14mm wrench, turn the nut either clockwise to raise one side of the saw head or counter-
clockwise to lower one side of the saw head. Double check the blade height as discussed in the
previous step. Once the measurement is consistent on both sides, tighten the corresponding nut to
clamp securely against tab.

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Add waterproof grease to the threads of the blade tension “T” handle and to the washer face that it
meets before use. Proper blade tension is achieved when a 24mm socket is used on a torque
wrench to tighten the “T” handle to 25 ft-lbs (34 N-m) torque. See the images below.
*Note –It is very important to take the tension off of the blade by turning the “T” handle in the
counter-clockwise direction when the sawmill is not in use. Failure to do so, will result in flat
spots on the rubber belts. These flat spots will cause the mill to vibrate excessively during
next use.*
Add grease to all “T” handle threads on the sawmill.

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Install the 3 latches on the band wheel housing doors, if they are not already installed. Only the 2
bottom latches require a spacer.
Push the saw head up and down the track system to ensure that the width of the track allows for the
saw head to move freely. If it binds or feels tight, the carriage wheel spacing can be adjusted again
by adding or removing washers.
Spacer
Latch

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2. ENGINE
Refer to the engine manual before using your sawmill. Please note that the engine does not contain
any gasoline or engine oil when it is shipped. Furthermore, the engine is equipped with an oil alert
system, meaning that if the crankcase oil level is low or empty, the power is cut to the spark plug and
it will not start.
Always cut in the direction shown below. The log clamp should always be on the right side of the log
and the log supports should always be on the left. Failure to cut in this direction can cause the log to
come loose and possibly even cause damage or injury.
*Now that your sawmill is assembled, please run through the “SAWMILL SET-UP
PROCEDURES” in the following section. Failure to do so may result in poor sawing
performance, damage or injury. See next page.*
Right Side of Sawmill
Left Side of Sawmill

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1
2
4
3
SAWMILL SET-UP PROCEDURES
1. BELT TENSION
Follower Belt –This is a polyurethane belt and will be seated tightly in the band wheel vee groove.
No adjustment is required for this belt.
Drive Belt - To check the belt tension, with your hand, firmly try to deflect the belt up and down.
There should be no more than 1/4” (6mm) of deflection. If the belt deflects more than this, it will need
to be tightened as described below.
**Never attempt to adjust the belt tension with the engine running.
As a safety precaution, remove the spark plug cap**
To tighten the drive belt, start by loosening the four bolts that secure the engine to the engine mount.

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Now that the engine is free to slide on the engine mounting plate, turn the nut on the horizontal stud
in the clockwise direction. This will pull the engine towards the stud and apply more tension on the
belt. Do this step incrementally while checking the belt for proper deflection. It is also important to
ensure that the engine remains perpendicular to the drive belt. Over tightening can cause the engine
to twist on the mounting plate, resulting in belt alignment issues and premature wear. Once the
desired belt tension is set, tighten the four engine bolts.
Alternatively, if the drive belt is too tight, the nut on the horizontal stud can be turned counter-
clockwise.