HITACHI
HITACHI
ROUTER
MODEL TR-12
INSTRUCTION MANUAL
Note
Before using this Electric Power Tool, carefully read through this
INSTRUCTION MANUAL to ensure efficient, safe operation. lt is
recommended that this MANUAL be kept readily available as an
important reference when using this power tool.
El DOUBLE INSULATION
We sincerely thank you for selecting a HITACHI ELECTRIC POWER TOOL.
To operate this electric power tool safely and efficiently, please read this IN-
STRUCTION MANUAL carefully to get a good understanding of the precau-
tions in operation, capacity of the electric power tool, use and the like.
IMPORTANT INFORMATION : SAFETY RULES FOR POWER TOOLS
WARNING : When using electric tools, basic safety precautions should always
be followed to reduce the risk of fire, electric shock, and personal
injury, including the following.
READ ALL INSTRUCTIONS
1.
2.
KEEP WORK AREA CLEAN. Cluttered areas and benches invite injuries.
CONSIDER WORK AREA ENVIRONMENT.
Don’t expose power tools to rain.
Don’t use power tools in damp or wet locations.
Keep work area well lit.
Don’t use tool in presence of flammable liquids or gases.
Power tools produce sparks during operation. They also spark when
switching ON/OFF. Never use power tools in dangerous sites con-
taining lacquer, paint, benzine, thinner, gasoline, gases, adhesive
agents, and other materials which are combustible or explosive.
GUARD AGAINST ELECTRIC SHOCK. Prevent body contact with ground-
ed surfaces. For example; pipes, radiators, ranges, refrigerator enclosures.
KEEP CHILDREN AWAY. Do not let visitors contact tool or extension cord.
All visitors should be kept away from work area.
STORE IDLE TOOLS. When not in use, tools should be stored in dry, and
high or locked-up place—out of reach of children.
DON'T FORCE TOOL. it will do the job better and safer at the rate for
which it was intended.
USE RIGHT TOOL. Don’t force small tool or attachment to do the job of
a heavy-duty tool. Don’t use tool for purpose not intended—for example—
don’t use circular saw for cutting tree limbs or logs.
DRESS PROPERLY. Do not wear loose clothing or jewelry. They can be
caught in moving parts.
Rubber gloves and non-skid footwear are recommended when working
outdoors.
Wear protective hair covering to contain long hair.
USE SAFETY GLASSES. Also use face or dust mask if cutting operation
is dusty.
All persons in the area where power tools are being operated should also
wear safety eye protectors and face or dust masks.
10. DON'T ABUSE CORD. Never carry tool by cord or yank it to disconnect
— 1 —
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
from receptacle.
Keep cord from heat, oil and sharp edges.
SECURE WORK. Use clamps or a vise to hold work. It's safer than using
your hand and it frees both hands to operate tool.
DON'T OVERREACH. Keep proper footing and balance at all times.
MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for better
and safer performance. Follow instructions for lubricating and changing
accessories.
Inspect tool cords periodically and if damaged, have repaired by authorized
service facility.
Inspect extension cords periodically and replace if damaged.
Keep handles dry, clean, and free from oil and grease.
DISCONNECT TOOLS. When not in use, before servicing, and when cha-
nging accessories, such as blades, bits, cutters.
REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking
to see that keys and adjusting wrenches are removed from tool before turn-
ing it on.
AVOID UNINTENTIONAL STARTING. Don’t carry plugged-in tool with
finger on switch. Be sure switch is off when plugging in.
OUTDOOR USE EXTENSION CORDS. When tool is used outdoors, use
only extension cords intended for use outdoors and so marked.
STAY ALERT. Watch what you are doing. Use commom sense. Do not
operate tool when you are tired.
CHECK DAMAGED PARTS. Before further use of the tool, a guard or
other part that is damaged should be carefully checked to determine that
it will operate properly and perform its intended function. Check for alignment
of moving parts, binding of moving parts, breakage of parts, mounting,
and any other conditions that may affect its operation.
A guard or other part that is damaged should be properly repaired or replaced
by an authorized service center unless otherwise indicated elsewhere in
this instruction manual.
Have defective switches replaced by authorized service center.
Do not use tool if switch does not turn it on and off.
AVOID USING A POWER TOOL FOR APPLICATIONS OTHER THAN
THOSE SPECIFIED.
Never use a power tool for applications other than those specified in the
instruction manual.
ENSURE SAFE OPERATION THROUGH CORRECT HANDLING.
Secure safe operation through correct handling by observing the instructions
described herein.
24.
25.
27.
28.
31.
32.
Do not employ accessories other than those specified herein; otherwise,
a hazardous condition may be created.
Never allow a power tool to be used by persons not familiar with correct
handling {such as children) or by those who cannot handle the tool correctly.
. CONFIRM THAT NO ITEMS SUCH AS AN ELECTRIC CABLE OR
CONDUIT ARE BURIED INSIDE. In places where live wiring may be
hidden behind a wall, floor, ceiling, etc. do not hold or contact any metal
parts of the tool. In such cases, metal parts could become electrically live
and present a serious shock hazard.
. KEEP THE RIGHT PARTS IN THE RIGHT POSITIONS.
Do not remove covers and screws which have been factory-mounted.
They perform important respective roles. Keep them in the right positions.
SHOULD THE PLASTIC HOUSING OR HANDLE OF A POWER TOOL
BE CRACKED OR DEFORMED, DO NOT USE IT.
Since cracked or deformed parts may lead to an operator receiving an
electric shock, do not use such a power tool. Immediately have it repaired.
SECURELY MOUNT ACCESSORIES AND BLADES TO THE TOOL
MAIN BODY. Extra care must be taken when using tools on elevated
location (such as a roof ladder, scaffold, or the like) to prevent injury to
someone on a lower level in the event the tool and/or accessory should
drop.
ALWAYS KEEP THE MOTOR AIR VENT FULLY OPENED.
A constantly open motor air vent is necessary to allow air to come in and
out for cooling the motor. Do not allow it to become clogged up, even if
dust is blown through it.
OPERATE POWER TOOLS AT THE RATED VOLTAGE.
Operate power tools at voltages specified on their nameplates.
NEVER TOUCH THE MOVING PARTS.
Never touch the moving parts such as blades, bits, cutters and others.
. STOP OPERATION IMMEDIATELY IF ANY ABNORMALITY IS DE-
TECTED.
Should a power tool be detected as out of order or should other abnor-
malities be observed during operation, stop using the tool immediately.
. NEVER LEAVE TOOL RUNNING UNATTENDED. TURN POWER OFF.
Don’t leave tool until it comes to a complete stop.
CAREFULLY HANDLE POWER TOOLS.
Should a power tool be dropped or struck against hard materials inad-
vertently, it may be deformed, cracked, or damaged.
DO NOT WIPE PLASTIC PARTS WITH SOLVENT.
Solvents such as gasoline, thinner, benzine, carbon tetrachloride, and
— 3 —
alcohol may damage and crack plastic parts. Do not wipe them with
such solvents. Wipe plastic parts with a soft cloth lightly dampened with
soapy water.
33. WHEN REPLACING A COMPONENT PART, ADOPT THE SAME TYPE.
When replacing a component part with a new one, adopt the same type
of new part. Also, never attempt to repair a power tool yourself.
SERVICE AND REPAIRS
All quality tools will eventually require servicing or replacement of parts due
to wear from normal use. These operations should ONLY be performed by an
AUTHORIZED HITACHI POWER TOOL REPAIR SHOP.
REPLACEMENT PARTS
When servicing use only identical replacement parts.
POLARIZED PLUGS
To reduce the risk of electric shock , this equipment has a polarized plug
(one blade is wider than the other).
This plug will fit in a polarized outlet only one way.
If the plug does not fit fully in the outlet, reverse the plug.
If it still does not fit, contact a qualified electrician to install the proper
outlet.
Do not change the plug in any way.
EXTENSIÓN CORD
Make sure your extension cord is in good condision. When using an
extension cord, be sure to use one heavy enough to carry the current your
product will draw. An undersized cord will cause a drop in line voltage
resulting in loss of power and overheating. Table shows the correct size to
use depending on cord length and nameplate ampere rating. If in doubt,
use the next heavier gage. The smaller the gage number, the heavier the
cord.
MINIMUM GAGE FOR CORD SETS
Total Length of Cord in Feet (Meter)
0-25 26-50 51-100 101-150
(0-7.6) (7.9-15.2) (15.5-30.5) (30.8-45.7)
Ampere Rating AWG
More Not More
Than Than
0—6 18 16 16 14
6-10 18 16 14 12
10—12 16 16 14 12
12—16 14 12 Not Recommended
DOUBLE INSULATION SYSTEM ENHANCES SAFE OPERATION
To enhance safe operation of this electric power tool,
HITACHI has adopted a double insulation system. The
term “double insulation’ used here denotes an insulation
system with two insulations physically separated and
arranged between the electrically conductive material
connected to the power supply and the outer frame subject to contact by
the operator. Thus, the power tool is termed double insulated and both the
“ [a] ” mark and “Double insulation’’, or either one is indicated on the name
plate. While no external grounding is required with this system, normal
safety precautions as outlined in this manual must still be followed.
To maintain the effectiveness of the double insulation system, follow the
precautions described below:
1. Always contact your dealer or an authorized HITACHI! service agent when
assembling, disassembling or replacing parts other than accessories
or carbon brushes. Improper assembly and/or replacement with wrong
parts may result in eliminating the double insulation-feature.
2. Clean the exterior of the tool with a soft cloth moistened with soapy water,
and dry thoroughly. Chloric solvent, gasoline, and thinner will cause plastic
components to dissolve.
DOUBLE INSULATION
PRECAUTIONS ON USING ROUTER
1. Don’t operate with only single hand.
2. Don't touch the bit with bare hands immediately after working.
SAVE THESE INSTRUCTIONS.
NAME OF PARTS
End Cover
RE E | Switch
Handle (L) | | (onde (R)
Stopper Pole Column
Knob | Sub Base
Fig. 1
Stopper Block
Base
Brush Cap
Lock Lever] End Bracket
Collet Nut
я Bh. i
Collet Chuck- gg NE UNS Teaded Column Fig. 2
SPECIFICATIONS
Motor: Single-Phase, Series Commutator Motor
Power Source: Single-Phase 115V AC 60Hz
Collet Chuck Capacity: 1/27 (12.7mm)
Main Body Stroke: 2-3/8” (60mm)
Current: 12.2A
No-Load Speed: 22,000rpm
Weight: 12.3 165 (5.5kg)
ACCESSORIES
Caution: Recommended accessories for this Electric Power Tool are mentioned in this manual. The
use of any other attachment or accessory might be hazardous.
STANDARD ACCESSORIES
D Straight Guide (Code Na 956797) ----...-- 1
@ Bar Holder (Code Na 956792) -<--------=--==.-- 1
Feed Screw (Code Na 956793) -+--=.-——«=e=..- 1
Wing Bolt (Code No 949394Z) ++ l
@ Trimmer Guide Ass’y (Code Na 956794) ---1
@ Template Guide (Code Na 956790) ++ 1
& Wrench (Code Na 956922) <<<" 1
© Wrench (Code Na 956923) -------=--eeeereeme.. 1
@ Straight Bit (Tungsten Carbide)
1/2” (12.7mm)(Code Na 956817Z) + 1
® Chuck Sleeve
1/4” (6.35mm)(Code Na 9569277) ---------=----- 1
3/8” (9.5mm)(Code No 956928Z) <=". 1
Template Guide Adaptor
Fig. 3 (Code No 956756) <<< 1
Wing Bolt M6X15 (for mounting the
guide bars) (Code Na 956924) ----=-=========--- 2
M Lock Spring (for mounting the guide
bars) (Code No 947859)------=======e===nee=eee==s 2
APPLICATIONS
C Woodworking jobs centered on grooving and beveling.
For example, grooving beveling, cutting, copying, Engraving, shape cutting, combinations and others
PREPARATION PRIOR TO OPERATION
Before using the Electric Power Tool, complete the following preparations.
1. Extension cord
Use an extension cord when the work site is removed from the power supply. In this case, an
extension cord of sufficient thickness shall be used. Actually, use the shortest possible extension cord.
Caution: Damaged cord must be replaced or repaired.
2. Confirming condition of the environment
Confirm that the work site is placed under appropriate conditions conforming to prescribed precau-
tions.
BEFORE USE
Caution: Confirm the following points prior to connecting the plug to the power receptacle.
1. Confirm the applied power source
Be sure to operate the Electric Power Tool in the voltage specified on the name plate.
2. Confirm that the power switch is turned OFF
If the plug 1s connected to the power receptacle while the power switch 1s turned ON, the machine
starts operating unexpectedly, inviting serious accidents. Prior to using the Electric Power Tool be sure
to confirm that the power switch 1s turned OFF.
3. Confirm the power receptacle
If the power receptacle only loosely accepts the plug, the receptacle must be repaired. Contact the
nearest electric store for repair service.
If such a faulty receptacle is used. it may cause overheating, resulting in a serious hazard.
HOW TO USE THE ROUTER
1. Mounting bits
Caution: Be sure to switch power OFF and disconnect the attachment plug from the power receptacle
to avoid serious trouble.
(1) After deeply inserting the bit into the collet chuck hole,
tightly clamp the chuck with the provided wrench. (Fig. 4)
(2) When employing bits with a shaft diameter of 1/4” (6.35
mm) or 3/8” (9.5mm), use the provided chuck sleeve. After
deeply inserting the sleeve into the collet chuck hole, insert
the bit into the chuck sleeve and tightly clamp the chuck
with the provided wrench.
Caution: Always clamp the collet chuck after inserting the
bit; otherwise 1t will become scarred.
Fightin *.
2. Adjusting the cutting depth
Caution: The following are examples related to straight bits.
When adjusting the cutting depth, use a stopper pole and a scale.
(1) Loosen the knob, and cause the stopper pole to contact
the stopper block.(Fig. 5)
(2) Loosen the lock lever, push down the router body until the
bit tip slightly contacts the surface of the workpiece, and
then clamp the lock lever, This state is termed “cut 0 (zero).”
(Fig. 6)
E (3) Then read the stopper pole arrow position on the scale.
Raise the stopper pole arrow position along the scale gradua-
tion until it attains the desired cutting depth, and then clamp
the knob.
(Example) When a cutting depth of 1” (25.4mm) is desired in
the instance in Fig. 7(a), adjust the position as shown in
Fig. 7(b).
(4) When the router body 1s pushed down until the stopper
pole contacts the stopper block, the desired cutting depth 1s
obtainable.
Use the threaded column and nuts when uniform cutting
jobs are conducted consecutively. (Fig. §)
(5) Also, by adjusting the two screws of the stopper block,
three different cutting depths can be set. (Fig. 9)
When the stopper block is not in use, leave the stopper pole
raised.
Fig. 9
3. Cutting
(1) Turn ON the switch when the bit is separated from the
workpiece.
. Fig. 10
7. ли
— ~~~ Router feed (9) The bit rotates clockwise (in arrow direction of End Bracket),
a LT
Router feed To obtain effective cut results, use the router in confirmity
with the router feed direction shown in Fig. 11.
workpiece ~~. |!
Rotation of bit
Fig. ll
USING THE ACCESSORIES
C Straight Guide: Use this Straight Guide for dine-marked Jobs in beveling or grooving.
First put the lock spring (standard accessory) onto the
wing bolt M6X15 (standard accessory) and then insert the
guides dar , ,
/ bolt in the screw hole on the base top of the unit.
fire into. Secure the guide bar with the wing bolt located on the
router body base. After fine-adjusting the dimension from the
bit to the guide plane with the feed screw, secure the straight
guide with the wing bolt located on the bar holder.
mec RO >
wing Вой
# Straight Guide
Guide Plane Bar Holder
Fig. 12
After tightly contacting the sub base lower plane with the
processing plane of the workpiece, use the straight guide
along the workpiece.
ge | æ »
Fig. 13
O Trimmer Guide: Use this Trimmer Guide for beveling.
As shown in Fig. 14, use the wing bolt to mount and secure
the trimmer guide on the bar holder.
By employing two wing bolts, use the trimmer guide while
aligning it at an appropriate position.
OTemplate Guide: The template guide 1s used when producing a large quantity of identically shaped
products by employing the template.
A template 1s a mold or a profiling mold made of plywood or
thin lumber.
Mount the template guide on the base with two screws.
Caution: when the router has been used along the template
interior plane, the dimension of the finished product
Will be less than the template by the dimension “A”
between the outside of the template guide and the
bit end 1s deducted in thts instance.
The reverse 1s true when along the template exterior
plane.
Template guide O Template Guide Adaptor:
If you are using a template guide adapter, it
is possible to use template guides produced
=> by other firms. The template guide adaptor,
like the template guide, is attached to the
Template guide base with two accessory screws. Attach tem-
adaptor Template guide plate guides made by other firms to the tem-
plate guide adaptor.
Template guide
Fig. 19
MAINTENANCE AND INSPECTION
Caution: Be sure to switch power OFF and disconnect the plug during maintenance and inspection.
CImspecting the carbon brushes
The motor employs carbon brushes as expendable components.
If the brushes are worn, motor trouble may result. When brushes are worn down to the limit line,
replace them with new brushes.
Also, keep the carbon brushes clean, so that they can be smoothly slide into the brush holders.
When replacing carbon brushes with new
brushes, be sure to use those for Hitachi Electric
Router Type TR-12 corresponding to the 1llu-
Wear limit No. of carbon brush
-- strated number (38)
и ”* To replace a carbon brush, use a minushead
, 38 screwdriver to disassemble the brush cap (Fig.2)
then remove the carbon brush together with the
-— Spring.
+ 10.24” (6mm)
0. 67 (17mm) —— >|
Fig. 20
OInspecting tightness of various screws
Periodically inspect each screw tightness of individual components. If any screws are loosened,
securely retighten them. Loosened screws, 1f unheeded, may cause a hazardous situation.
NOTE
Due to HITACHI's continuing program of research and development, the specifications herein are
subject to change without prior notice.
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