Remington MODSAW Manual
®
BAR & CHAIN
MOUNTING,
TENSIONING,
AND MAINTENANCE
INSTRUCTIONS
As the forerunner in modern cutting chain design, devel-
opment and production, Remington®is continuously
developingnewlow-kickback,highperformancecutting
chains and guide bars. The bar or chain in this package
meets the reduced kickback requirements of the Ameri-
can National Standards Institute Voluntary Safety Stan-
dard B175.1. This bar or chain is low-kickback when
used on chainsaws for which it is offered (See Package).
READ ALL KICKBACK WARNINGS ON
THIS INSTRUCTION SHEET.
WARNING:GUARDAGAINSTTHEDAN-
GER OF CHAINSAW KICKBACK.
Kickback can lead to dangerous loss of control of the
chainsaw and result in serious injury to the saw operator
or bystanders. Kickback is the sudden backward and/or
upward motion of the chainsaw guide bar occurring
when the saw chain near the nose or the top area of the
guide bar contacts any object, such as another log or
branch, or when the wood closes in and pinches the saw.
IMPORTANT SAFETY
INFORMATION
Continued
MODEL: MODSAW
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NEVER attempt to operate a chainsaw without first re-
ceiving qualified operating and maintenance instructions.
NEVER let the tip of the bar and chain contact other
objects while the chain is moving.
NEVER cut with loose or dull chain.
NEVER run the motor slowly at the start or during the cut.
NEVER cut in unsteady positions (off-balance, out-
stretched arms, one-handed, over-reaching, on a ladder,
or in a tree).
ALWAYS use Remington®low-kickback chain and bar.
ALWAYS read the owner’s manual.
ALWAYS wear leather gloves, approved eye, ear,
head, and face protection.
ALWAYS use both hands and a firm grip.
WARNING: Serious injury can result if
manufacturer’s instructions on saw chain
maintenance, tensioning, and mounting are
not followed. Read and follow all instruc-
tions supplied with chainsaw and those
included in this instruction sheet. If chain is
not tensioned correctly injury could result
from the chain jumping off the bar.
IMPORTANT SAFETY
INFORMATION
Continued
WARNING: Cutting edges on chain are
sharp. Use protective gloves when han-
dling chain.
IMPORTANT:
Do not clamp chain saw in vise during
assembly or disassembly.
REMOVE OLD BAR AND CHAIN
1. Ensure chainsaw is unplugged and cool.
2. Loosen the guide bar nut (see Figure 1).
DISASSEMBLY
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DISASSEMBLY
Continued
3. Turn chain tensioning screw counter-clockwise to
loosen chain (see Figure 1).
4. Remove guide bar nut.
5. Remove sprocket cover (see Figure 1).
6. Rotate guide bar retainer so that it is positioned
parallel to guide bar slot (see Figure 2).
7. Remove the old bar and chain.
Figure 1 - Loosen and Remove Guide Bar Nut
Figure 2 - Unlocking Guide Bar Retainer
L
O
O
S
E
N
Sprocket Cover
Guide Bar
Nut
T
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H
T
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N
L
O
O
S
E
N
U
N
L
O
C
K
E
D
Guide Bar Retainer
Positioned Parallel to
Guide Bar Slot
Guide Bar
Chain Tensioning
Screw
Drive
Sprocket
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MOUNT BAR AND CHAIN
1. Rotate guide bar retainer so that it is positioned
parallel to guide bar slot (see Figure 2).
2. Install guide bar onto saw body. Assemble center
slot of guide bar onto guide bar bolt and guide bar
retainer.
Note:
Make sure the head of the guide bar
retainer slides through the guide bar slot as shown
in Figure 2.
3. Rotate guide bar retainer 90 degrees as shown in
Figure 3.
4. Place chain around drive sprocket, along top groove
of guide bar, and around guide bar nose.
Note:
Make
sure cutting edges of chain are facing in right direc-
tion. Position chain so cutting edges on top of guide
bar face guide bar nose (see Figure 4, and indicator
on side cover of saw).
ASSEMBLY
L
O
C
K
E
D
Figure 3 - Locking Guide Bar Retainer
Guide Bar Retainer
Rotated 90 Degrees
to Guide Bar Slot
Guide Bar
Figure 4 - Correct Chain Direction
Cutting Edge
Towards Guide Bar
Nose
Drive
Sprocket
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5. Insert tab of sprocket cover into slot on unibody and
rotate sprocket cover onto guide bar bolt until
sprocket cover rests against guide bar (see Figure 5).
ASSEMBLY
Continued
Continued
Figure 5 - Installing Sprocket Cover
Step
1
Step
2
Guide Bar Bolt
Bushing
Guide Bar Nut
Sprocket Cover Tab
Slot
Adjusting Hole
6. Place guide bar nut, removed in step 2, on guide
bar bolt.
IMPORTANT:
Tighten guide bar nut finger tight only.
7. Turning chain tensioning screw, adjust position of ad-
justment block until it is aligned and inserted into the
round adjusting hole on guide bar (see Figures 5 and
6). Turning screw counterclockwise will move adjust-
ment block to rear of guide bar. Turning screw clock-
wise will move adjustment block to front of guide bar.
Figure 6 - Chain Tensioning Screw and Adjust-
ment Block Location
T
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N
Chain Tensioning
Screw
Adjustment Block
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ASSEMBLY
Continued
SAW CHAIN TENSION
ADJUSTMENT
WARNING:Unplugchainsawfrompower
source before adjusting saw chain tension.
WARNING: Cutting edges on chain are
sharp. Use protective gloves when han-
dling chain.
WARNING: Always maintain proper
chain tension. A loose chain will increase
the risk of kickback. A loose chain may
jump out of guide bar groove. This may
injure the operator and damage chain. A
loose chain will cause chain, guide bar,
and sprocket to wear rapidly.
Chain tension is correct when the chain moves freely
around the guide bar with a gloved hand. Chain should
touch the underside of the guide bar rail.
A new chain will stretch. Check new chain frequently
during the first few minutes of operation. Allow chain
to cool down. Follow the steps below to readjust saw
chain tension:
1. Loosen guide bar nut.
2. Ensure the adjustment block is in the adjusting hole
on guide bar (see Figures 5 and 6).
3. Tighten chain tensioning screw clockwise until all
slack is removed from chain. Chain should rest
against the bottom of guide bar rail.
8. If needed, readjust guide bar nut to finger tight only.
9. Tighten chain tensioning screw to attain proper ten-
sion (see Saw Chain Tension Adjustment).
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SAW CHAIN TENSION
ADJUSTMENT
Continued
MAINTENANCE
INSTRUCTIONS
1. Check and readjust chain periodically during life
of the chain.
2. Always check and adjust chain when cool, not hot.
3. Lubricate chain properly.
4. Keep oil reservoir full. Pump manual oiler before
every cut.
5. Check and sharpen chain frequently. See owner’s
manual for sharpening procedure.
Approx.
1/8"
Guide Bar
Figure 7 - Correct Chain Tension
4. Pull chain away from the bottom of the bar approxi-
mately 1/8 inch (links should not come out of guide
bar groove) and let go. The chain should return to
rest against the guide bar rail (see Figure 7).
5. Make sure chain moves freely around guide bar then
tighten guide bar nuts.
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TECHNICAL SERVICE
You may have further questions about assembling,
operating, or maintaining this product. If so, you can
visit our Technical Service web site at
www.desatech.com or contact our Technical Ser-
vice Department at 1-800-858-8501 (English Only).
You may also write to:
DESA Specialty Products™
ATTN: Technical Service Specialty Products
P.O. Box 90004
Bowling Green, KY 42102-9004
WhencontactingDESA SpecialtyProducts™, haveready
•Your Name
•Your Address
•Your Phone Number
• Model Number of Product
•Date of Purchase (Include copy of receipt for writ-
ten requests).
Bowling Green, KY 42102-9004
1-800-858-8501 (English Only)
www.desatech.com
Industries of Canada, Inc.
2220 Argentia Road
Unit #4
Mississauga, Ontario
L5N 2K7
905-826-8010
FAX 905-826-8236
www.desatech.com
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