Shindaiwa 89379 User manual

SHINDAIWA GRASS TRIMMER TO BRUSHCUTTER
CONVERSION KIT FOR T282 GRASS TRIMMER
WARNING!
Minimize the risk of injury to yourself and others! Read the Owner's/Opera-
tor's manual originally supplied with the unit that is being upgraded and
familiarize yourself with the contents. Always wear eye and hearing protec-
tion when operating your unit.
X7672820300
12/10
MODEL: 89379

2
CAUTION!
A statement preceded by the word “CAUTION” contains
information that should be acted upon to prevent mechanical
damage.
IMPORTANT!
A statement preceded by the word “IMPORTANT” is one that
possesses special signicance.
NOTE:
A statement preceded by the word “NOTE” contains information
that is handy to know and may make your job easier.
Throughout this manual are special “attention statements”.
WARNING!
A statement preceded by the triangular attention symbol and the word “WARNING” contains information that should be
acted upon to prevent serious bodily injury.
Attention Statements
Introduction
PAGE
These are instructions to convert a grass trimmer to a blade capable unit. This is not an Owner's/Operator's manual. Infor-
mation on how to operate and maintain the unit can be found in the Owner's/Operator's manual for the unit you are con-
verting. Note this kit is supplied with a cutting attachment shield that has been redesigned to provide better visibility and a
larger cutting swath when used as a grass trimmer.
Attention Statements ........................2
Safety Labels....................................3
Contents
IMPORTANT!
The instructions described in this manual are intended to help
you get the most from your Shindaiwa power tool as well as
to protect you and others from harm. These procedures are
guidelines for safe operation under most conditions, and are
not intended to replace any safety rules and/or laws that may
be in force in your area. If you have questions regarding your
Shindaiwa power tool, or if you do not understand something in
these instructions, your Shindaiwa dealer will be glad to assist
you. You may also contact Shindaiwa at the address printed on
the back of this instructional manual.
General Safety Instructions ..............3
Kit Contents......................................3
Read and follow this
operators manual.
Failure to do so could
result in serious injury.
Wear eye and hearing
protection at all times
during the operation
of this unit.
Keep bystanders
at least 50 feet (15 m)
away during operation.
Beware of thrown or
ricocheted objects.
Do not operate this unit
with a blade unless the
unit is equipped with a
Shindaiwa-approved
handlebar or barrier.
Always wear a harness
when operating this unit
with a blade. A harness
is also recommended when
using trimmer line.
If unit is used as a
brushcutter, beware of
blade thrust. A jammed
blade can cause the unit
to jerk suddenly and may
cause the operator to
lose control of the unit.
Assembly..........................................4
Shoulder Strap................................10
Using a Brushcutter Blade.............. 11
PAGE PAGE
IMPORTANT!
The information contained in these instructions describes
the product available at the time of publication.
Echo, Inc. reserves the right to make changes to products
without prior notice, and without obligation to make altera-
tions to units previously manufactured.
IMPORTANT!
If the cutting attachment shield has been removed from
your unit or the unit was manufactured prior to October
2001, an additional clamp kit will be required to complete
this installation. The clamp kit required is Shindaiwa part
number 80293.

3
Safety and Operation Information Labels: Make sure
all information labels are undamaged and readable.
Immediately replace damaged or missing information
labels. A new label is provided in this kit and additional
labels are available from your local authorized Shin-
daiwa dealer. Prior to installing the new label, Remove
old label and clean the outer tube with rubbing alcohol
or similar cleaner.
IMPORTANT!
Safety Labels
When operating with a blade, make sure the handle■
is positioned to provide you with maximum protec-
tion from contacting the blade. Always make sure the
handlebar is installed in accordance with the manufac-
turers instruction.
NEVER
■use a cracked or warped blade: If a properly
installed blade vibrates, replace it with a new one and
re-check.
WARNING!
ALWAYS
■Shut off the engine immediately if a blade
binds in a cut. Push the branch or tree to ease the
bind and free the blade.
Beware of a coasting blade when brushcutting.
■
A coasting blade can injure while it continues to
spin after the throttle trigger is released or after the
engine is stopped.
Kit Contents
General Safety Instructions
# Description Qty
1 Handlebar Assembly 1
2 Caution Label 1
3 Screw, 5 mm x 16 mm 1
4 Harness Hanger 1
5 Hex Nut, 5 mm 1
6 Handlebar Mounting Bracket 1
7 Plastic Clamp 2
8 Shim 2
9 Hex Bolt, 8 mm 1
10 Bolt Guard 1
11 Upper Shield Clamp 1
12 Shim 2
13 Hex Bolt, 5 mm x 45 mm 4
14 Debris Shield 1
15 Debris Shield Extension 1
16 Shoulder Strap With Hip Cushion 1
17 Holder B 1
18 Holder A 1
Assembly Tool(s)
1
2
3
4
5
6
7
8
9
10
11
1213
14
15
16
17 18

4
Assembly
Removing the Existing Cutting Attachment Shield
Remove the four socket-head cap screws (A),1.
bracket (B) and two shims (C).
Remove the cutting attachment shield from the2.
gearcase. AB
Remove Handle Assembly
C
C
Turn the unit over so that the gearcase output shaft faces UP.1.
Align the hole in the holder (A) with the notch in the gearcase ange, and 2.
then temporarily lock the output shaft by inserting a hex wrench through
both holes.
While holding the hex wrench turn the trimmer head clockwise to remove.3.
Remove the hex wrench.4.
Remove Cutting Attachment
26107
A
Remove handle assembly. Retain all parts for1.
future use.

5
Remove Power Head
1. Loosen drive shaft clamping bolt (A).
2. Pull outer tube (B) and drive shaft out of power head (C).
Remove Throttle Control Handle Assembly
Loosen handle clamp screw (D), and remove throttle control assembly1.
and cushioned hand grip (F) from outer drive shaft tube.
B
C
A
B
DF
A
B
C, D
Install Power Head
Slide outer drive shaft assembly into power head clamp, and align1.
power head with gear case.
Secure drive shaft assembly with clamping bolt.2.
Install Harness Hanger
Slide harness hanger (A) on to outer drive shaft tube (B)1.
and loosely attach with 5 mm x 12 mm screw (C) and nut
(D). Do not tighten screw securely until nal adjustments
are completed.
Disconnect Throttle Cable-Ignition Wires
1. Loosen air cleaner cover knob and remove air cleaner cover.
2. Remove wire end of throttle linkage cable (A) from carburetor throttle
swivel hole.
3. Disconnect 2 ignition stop switch leads:
a. Disconnect wire with ring terminal from grounding screw (B) on
engine.
b. Pull quick-connect connectors (C) apart to disconnect remaining stop
switch wire.
Units with plain throttle cable end (P):
4. Remove throttle linkage cable from adjustment xture (D).
5. Unscrew throttle cable adjustment xture (D) and lock nut from carburetor
throttle cable bracket, and discard.
Units with throttle cable adjustment xture attached to cable end (T):
6. Unscrew throttle linkage cable with attached cable adjustment xture and
nut (T) from carburetor throttle cable bracket (E).
A
C
D
P
T
E

6
G
G
H
F
E
CE
C
Install Handlebar Mounting Bracket and Handlebar
Assembly
Remove 2 lower cap screws (A), and remove lower cap (B).1.
Place the handlebar mounting bracket (C) and 2 spacers (D) on the outer2.
tube, and secure with lower cap and 2 screws.
Remove 4 upper cap screws (E) and remove upper cap (F).3.
Remove handlebar clamp (G) from mounting bracket, and unscrew 44.
screws to separate clamp.
Install handlebar clamp (G) on handlebar (H), and secure with 4 clamp5.
screws.
IMPORTANT!
Screw heads must face down to permit handlebar adjustments after upper
cap (F) is installed on handlebar mounting bracket (C).
Place handlebar clamp into mounting bracket, and seat clamp in rubber6.
anti-vibration cushion.
Place upper cap (F) on handlebar mounting bracket. Make sure anti-vibra-7.
tion cushions in upper cap t properly on top of handlebar clamp. Secure
with 4 screws (E).
AB
C
D
D
E
EE
F

7
Secure plastic ex tubing to outer driveshaft tube using plastic clamps (I) 8.
provided. Do not fully tighten plastic clamps until throttle cable and stop
switch wires are connected and all nal throttle cable and handlebar ad-
justments are completed.
Handlebar Adjustments:9.
a. Loosen 2 lower cap retaining screws (A) to adjust handlebar location
on outer drive shaft tube.
b. Loosen 4 handlebar clamp screws to adjust handgrip position.
Access handlebar clamp screws through 4 holes (J) in bottom of
handlebar mounting bracket.
c. Tighten all clamp and retaining screws securely after making nal
adjustments. (See page 10.)
I
I
E
E
J
J
J
A
E
JE
Thread throttle cable adjuster (A) into throttle cable bracket (B), and install1.
wire end into large carburetor swivel hole (C). Check throttle for freedom
of movement and that wide open throttle/low idle extremes are adjusted
properly. Turn the cable adjuster in or out to make adjustments. After
adjusting, hold the cable adjuster (A), and tighten the cable adjuster nut (D)
against the cable bracket (B) to lock the setting.
Connect 2 ignition stop leads from throttle cable tubing to ignition leads on2.
engine (E) and grounding screw (F).
Reinstall the air cleaner cover.3.
Throttle Linkage and Ignition Leads
F
B
C
D
A
E

8
Install New Cutting Attachment Shield
G
A
C
C
D
A
B
E
Assemble the Cutting Attachment Shield to the Outer Tube.
Insert the cutting attachment shield1.
(A) between the outer tube and the
cutting attachment mounting plate (B).
Fit the two shims (C) and the upper2.
clamp (D) over the outer tube and in-
stall the four socket-head cap screws
(E) nger tight.
CAUTION!
Make sure the clamp screw and re-
taining nut (F) are securely tightened
before tightening the four socket head
screws.
Tighten the four socket-head cap3.
screws to secure the cutting attach-
ment shield.
F
Sub-Shield.
(when trimmer head is in use)
Attach the sub-shield (G) extension to the cutting attach-1.
ment shield (A).
WARNING!
NEVER use this machine without sub-shield when us-
ing a trimmer head.
CAUTION!
Make sure the sub-shield is completely hooked at the
hook receiver.
WARNING!
NEVER operate the unit without the cutting attachment
shield installed and tightly secured!
WARNING!
A cutting attachment shield or other protective device is
no guarantee of protection against ricochet. YOU MUST
ALWAYS GUARD AGAINST FLYING DEBRIS!

9
IMPORTANT!
Discard blades that are bent, warped,
cracked, broken or damaged in any way.Use
a sharp blade. A dull blade is more likely to
snag and thrust.
Installing Brushcutter Blade
Install blade holder (A) onto output shaft (G).1.
Align the hole in blade holder (A) with the matching hole in the gear case2.
ange and then temporarily lock the output shaft by inserting a hex wrench
through both holes.
Fit the blade over the ange on holder (A).3.
D
C
B
A
G
E
B
CAUTION!
Install the blade (E) so its printed surface is visible to the operator when the
brushcutter is in the normal operating position.
WARNING!
The blade must t at against the holder ange. The blade mounting
hole must be centered over the raised boss on blade Holder (A).
WARNING!
Holder (B) must t ush against the blade and the splines engaged
to the output shaft.
nstall blade holder (B) on the output shaft (G).4.
WARNING!
Do not attach any blade to a unit without proper installation of all required
parts. Failure to use the proper parts can cause the blade to y off and seri-
ously injure the operator and/or bystanders.
Install the bolt guard (C) and then the blade retaining bolt (D). Using the5.
combination spark plug wrench/screwdriver, tighten the bolt rmly in a
counter-clockwise direction.
Remove the hex wrench.6.
The unit should now be completely assembled and ready for use with a
blade.
IMPORTANT!
Units with adjustable carburetors must be readjusted for blade use, otherwise
serious engine damage can occur.
WARNING!
A standard grass trimmer unit with loop handle should NEVER be operated with blade-type attachments. For blade use,
the trimmer must be tted with a bicycle-type handlebar or barrier bar that is located in front of the operator to reduce the
risk of the operator coming in contact with the cutting attachment. (Per ANSI B175.3). When using a blade, the unit must
be equipped with a harness or strap.

10
Shoulder Strap
NOTE:
Although a shoulder strap accessory is not required for use with a grass
trimmer, a shoulder strap can increase operator comfort during extended
periods of operation.
WARNING!
Always wear a shoulder strap when operating this unit with a blade. A
shoulder strap is also recommended when using trimmer line.
NOTE:
Using a shoulder strap with a brush-cutter allows you to maintain proper
control of the unit and reduces fatigue during extended operation.
Adjust the shoulder strap so the shoulder pad rests comfortably on the off-side
shoulder and the cutting path of the cutting attachment is parallel to the
ground.
b a l a n c e a n d a d j u s t u n i t
Loosen harness clamp screw.1.
Put on harness and attach unit to harness.2.
Slide harness clamp up (A) or down until unit balances with head approxi-3.
mately 50-75 mm (2 -3 in.) from the ground.
Tighten harness clamp screw.4.
Loosen Handle bar clamp screws (B), and position Handle bar for comfort-5.
able operation. (See page 7.)
Tighten Handle bar clamp screws securely.6. A
B