P20ST - Sander HITACHI - Free user manual and instructions

USER MANUAL P20ST HITACHI

INSTRUCTION MANUAL AND SAFETY INSTRUCTIONS

Read and understand all of the safety precautions, warnings and operating instructions in the Instruction Manual before operating or maintaining this power tool. Most accidents that result from power tool operation and maintenance are caused by the failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing a potentially hazardous situation before it occurs, and by observing appropriate safety procedures. Basic safety precautions are outlined in the “SAFETY” section of this Instruction Manual and in the sections which contain the operation and maintenance instructions. Hazards that must be avoided to prevent bodily injury or machine damage are identified by WARNINGS on the power tool and in this Instruction Manual. NEVER use this power tool in a manner that has not been specifically recommended by HITACHI.

MEANINGS OF SIGNAL WORDS

WARNING indicates a potentially hazardous situations which, if ignored, could result in death or serious injury. CAUTION indicates a potentially hazardous situations which, if not avoided, may result in minor or moderate injury, or may cause machine damage. NOTE emphasizes essential information. SAFETY

Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Save all warnings and instructions for future reference. The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

a) Keep work area clean and well lit. Cluttered or dark areas invite accidents. b) Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes. c) Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

2) Electrical safety

a) Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock. b) Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded. c) Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock. d) Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock. e) When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock. f) If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply. Use of an RCD reduces the risk of electric shock.

a) Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. 01Eng_P20ST_US 6/11/12, 11:44 AM3English

If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools. f) Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control. g) Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.

a) Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained. –WARNING– To reduce the risk of injury, user must read instruction manual.

SPECIFIC SAFETY RULES AND SYMBOLS

1. Wait for the cutter to stop before setting the tool

down. An exposed cutter may engage the surface leading to possible loss of control and serious injury.

2. Hold the power tool by insulated gripping surface

only, because the cutter may contact its own cord. Cutting a "live" wire may make exposed metal parts of the power tool "live" and could give the operator an electric shock.

3. Use clamps or another practical way to secure and

support the workpiece to a stable platform. Holding the work by hand or against your body leaves it unstable and may lead to loss of control.

4. Wear ear protectors.

Exposure to noise can cause hearing loss.

5. NEVER touch moving parts.

NEVER place your hands, fingers or other body parts near the tool’s moving parts.

6. NEVER operate without all guards in place.

NEVER operate this tool without all guards or safety features in place and in proper working order. If maintenance or servicing requires the A moment of inattention while operating power tools may result in serious personal injury. b) Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non- skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries. c) Prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energising power tools that have the switch on invites accidents. d) Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury. e) Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations. f) Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts. g) If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards.

4) Power tool use and care

a) Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed. b) Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired. c) Disconnect the plug from the power source and/or the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally. d) Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users. e) Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool’s operation. 01Eng_P20ST_US 9/20/12, 15:394English

18. Do not wipe plastic parts with solvent.

Solvents such as gasoline, thinner benzine, carbon tetrachloride, and 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 and dry thoroughly.

19. ALWAYS wear eye protection that meets the

requirement of the latest revision of ANSI Standard Z87.1.

20. ALWAYS wear a mask or respirator to protect

yourself from dust or potentially harmful particles generated during the operation.

OPERATION To ensure safer operation of this power tool, HITACHI has adopted a double insulation design. “Double insulation” means that two physically separated insulation systems have been used to insulate the electrically conductive materials connected to the power supply from the outer frame handled by the operator. Therefore, either the symbol “ ” or the words “Double insulation” appear on the power tool or on the nameplate. Although this system has no external grounding, you must still follow the normal electrical safety precautions given in this Instruction Manual, including not using the power tool in wet environments. To keep the double insulation system effective, follow these precautions:

Only HITACHI AUTHORIZED SERVICE CENTER should disassemble or assemble this power tool, and only genuine HITACHI replacement parts should be installed.

Clean the exterior of the power tool only with a soft cloth moistened with soapy water, and dry thoroughly. Never use solvents, gasoline or thinners on plastic components; otherwise the plastic may dissolve. removal of a guard or safety feature, be sure to replace the guard or safety feature before resuming operation of the 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.

8. NEVER use a power tool for applications other

than those specified. NEVER use a power tool for applications other than those specified in the Instruction Manual.

9. Handle tool correctly.

Operate the tool according to the instructions provided herein. Do not drop or throw the tool. NEVER allow the tool to be operated by children, individuals unfamiliar with its operation or unauthorized personnel.

10. Keep all screws, bolts and covers tightly in place.

Keep all screws, bolts, and plates tightly mounted. Check their condition periodically.

11. Do not use power tools if the plastic housing or

handle is cracked. Cracks in the tool’s housing or handle can lead to electric shock. Such tools should not be used until repaired.

12. Blades and accessories must be securely mounted

to the tool. Prevent potential injuries to youself or others. Blades, cutting implements and accessories which have been mounted to the tool should be secure and tight.

13. Keep motor air vent clean.

The tool’s motor air vent must be kept clean so that air can freely flow at all times. Check for dust build-up frequently.

14. Operate power tools at the rated voltage.

Operate the power tool at voltages specified on its nameplate. If using the power tool at a higher voltage than the rated voltage, it will result in abnormally fast motor revolution and may damage the unit and the motor may burn out.

15. NEVER use a tool which is defective or operating

abnormally. If the tool appears to be operating unusually, making strange noises, or otherwise appears defective, stop using it immediately and arrange for repairs by a Hitachi authorized service center.

16. NEVER leave tool running unattended. Turn power

off. Don’t leave tool until it comes to a complete stop.

17. Carefully handle power tools.

Should a power tool be dropped or struck against hard materials inadvertently, it may be deformed, cracked, or damaged. 01Eng_P20ST_US 9/20/12, 15:095English

SAVE THESE INSTRUCTIONS

FUNCTIONAL DESCRIPTION NOTE: The information contained in this Instruction Manual is designed to assist you in the safe operation and maintenance of the power tool. NEVER operate, or attempt any maintenance on the tool unless you have first read and understood all safety instructions contained in this manual. Some illustrations in this Instruction Manual may show details or attachments that differ from those on your own power tool. SPECIFICATIONS Motor Single-Phase, Series Commutator Motor Power Source Single-Phase, 120V AC 60Hz Current 5.5 A No-Load Speed 17,000/min Cuttdng Width 3-1/4" (82mm) Max. Cutting Depth 1/16" (1.5mm) Weight 5.7 lbs (2.5 kg) Fig. 1(a) Fig. 1(b)

Switch trigger Belt cover Stopper (for U.S.A.) Knob

for adjusting cutter depth

Housing Front base Outlet of shaving Nameplate Brush cap Stand Rear base 01Eng_P20ST_US 6/28/12, 7:34 AM7English

Planing various wooden planks and panels Fig. 2-A (Planing) Fig. 2-B (Beveling) Fig. 2-C (Rabbeting) 23/64"(Max) (9mm) Fig. 2-D (Tapering) 23/64"(Max) (9mm) Fig. 2-E (Side planing of flush door) Side face cutting

Ensure that the power source to be utilized conforms to the power source requirements specified on the product nameplate.

Ensure that the switch is in the OFF position. If the plug is connected to a receptacle while the switch is in the ON position, the power tool will start operating immediately and can cause serious injury.

When the work area is far away from the power source, use an extension cord of sufficient thickness and rated capacity. The extension cord should be kept as short as practicable.

Damaged cord must be replaced or repaired.

4. Check the receptacle

If the receptacle only loosely accepts the plug, the receptacle must be repaired. Contact a licensed electrician to make appropriate repairs. If such a faulty receptacle is used, it may cause overheating, resulting in a serious hazard.

5. Confirming condition of the environment

Confirm that the work site is placed under appropriate conditions conforming to prescribed precautions.

6. Prepare a stable wooden workstand suitable for

planing operation. As a poorly balanced workstand creates a hazard, ensure it is securely positioned on firm, level ground.

7. Confirm that the cutter blades are securely tightened

The cutter blade is securely bolted at the factory, rendering the machine immediately usable on site; however, use a box wrench to retighten the bolts prior to operation. 01Eng_P20ST_US 6/11/12, 11:44 AM8English

Fig. 5 End of cutting operation

4. Precaution after finishing the planing operation

When the planer is suspended with one hand after finishing the planing operation, ensure that the cutting blades (base) of the planer do not contact or come too near your body. Failure to do so could result in serious injury.

Lift the back of the planer to extend the foot from the base. Having the stand extended when you put the planer down prevents contact between the blade and the material. Fig. 6

CUTTER BLADE ASSEMBLY AND

DISASSEMBLY AND ADJUSTMENT OF

Be sure to switch power OFF and disconnect the plug from the receptacle to avoid serious trouble.

Be careful not to injure your hands.

1. Cutter blade disassembly

(1) As shown in Fig. 7 use the accessory box wrench to withdraw the three bolts used to retain the cutter blade, and remove the cutter blade holder. Fig. 7 PLANING PROCEDURES

1. Adjusting the cutter depth

Turn the knob in the direction indicated by the arrow in Fig. 3 (clockwise), until the triangular mark is aligned with the desired cutting depth on the scale. An interval between graduations on the scale corresponds to 1/256"(0.1mm) in cutting depth. The cutting depth can be adjusted within a range of 0

Rough cutting should be accomplished at large cutting depth and at a suitable speed so that shavings are smoothly ejected from the machine. To ensure a smoothly finished surface, finish cutting should be accomplished at small cutting depth and at low speed.

3. Beginning and ending the cutting operation

As shown in Fig. 4, place the front base of the planer on the workpiece and support the planer horizontally. Turn ON the power switch, and slowly operate the planer toward the leading edge of the workpiece. Firmly depress the front half of the planer at the first stage of cutting and, as shown in Fig. 5, depress the rear half of the planer at the end of the cuning operation. The planer must always be kept flat throughout the entire cutting operation. Fig. 4 Beginning of cutting operation Knob Scale Triangular mark Stand Box wrench Blade holder 01Eng_P20ST_US 6/11/12, 3:11 PM9English

(2) As shown in Fig. 8, slide the blade in the direction indicated by the arrow to disassemble the blade. Fig. 8

2. Cutter blade assembly

CAUTION: Prior to assembly, thoroughly wipe off all swarf accumulated on the cutter blade. (1) Insert a turned portion of set plate (A) attached to the blade into a groove on the flat portion of the cutter block. (Fig. 9, 10) Set the blade so that both sides of the blade protrude from the width of the cutter block by about 3/64" (1 mm) (Fig. 11) Fig. 9 Fig. 10 (Correct installation) Fig.11 (2) Place the blade holder on the completed assembly, as shown in Fig. 12, and fasten it with the three bolts. Ensure that the bolts are securely tightened. Fig. 12 (3) Turn the cutter block over, and set the other side in the same manner.

3. Adjustment of cutter blade height:

CAUTION: As the set gauge has been accurately factory adjusted, never attempt to loosen it. (1) Loosen the 2 screws holding on the blade and set plate (A). (Fig. 13) Fig. 13 (2) Press the turned surface of set plate (A) to the wall surface b while adjusting the blade edge to the wall surface a of the set gauge. Then, tighten them with the 2 screws. (Fig. 14, 15) Set plate (B) Flat portion of the cutter block Set plate (A) Set plate (A) Blade Groove Cutter block Blade 3/64" (1 mm)3/64" (1 mm) Blade holder Bolt Machine screw 01Eng_P20ST_US 6/11/12, 11:44 AM10English

(2) Cutter blade sharpening intervals Cutter blade sharpening intervals depend on the type of wood being machined and the cutting depth. However, sharpening should generally be effected after each 1,640ft (500 m) of cutting operation. (3) Grinding allowance of the cutter blades As illustrated in Fig. 18, a grinding allowance of 0.14" (3.5 mm) is provided for on the cutter blade. That is, the cutter blade can be repeatedly sharpened until its total height is reduced to 0.96" (24.5 mm). Fig. 18 (4) Grinding Stone When a water grinding stone is available, use it after dipping it sufficiently in water since such a grinding stone may be worn during grinding procedures, flatten the upper surface of the grinding stone as frequently as possible. Fig. 14 Fig. 15

SHARPENING THE CUTTER BLADES

Use of the accessory Blade Sharpening Ass'y is recommended for convenience. (1) Use of Blade Sharpening Ass’y. As shown in Fig. 16, two blades can be mounted on the blade sharpening ass’y to ensure that the blade tips are ground at equal angles. During grinding, adjust the position of the cutter blades so that their edges simultaneously contact the grinding stone as shown in Fig. 17. Fig. 16 Fig. 17 Machine screw Machine screw Cutter blade Grinding allowance 0.96" (24.5 mm) 0.14" (3.5 mm) Set gauge Wall surface a Blade Set plate (A) Wall surface b Turned surface 01Eng_P20ST_US 6/11/12, 11:44 AM11English

Be sure to switch power OFF and disconnect the plug from the receptacle during maintenance and inspection.

1. Inspecting the cutter blades

Continued use of dull or damaged cutter blades will result in reduced cutting efficiency and may cause overloading of the motor. Sharpen or replace the cutter blades as often as necessary.

CAUTION: The front base, rear base, and cutting depth control knob are precisely machined to obtain specifically high precision. If these parts are roughly handled or subjected to heavy mechanical impact, it may cause deteriorated precision and meduced cutting performance. These parts must be handled with particular care.

3. Inspecting the screws

Regularly inspect all screws and ensure that they are fully tightened. Should any of the screws be loosened, retighten them immediately.

Using this planer with loosened screws is extremely dangerous.

4. Inspecting the carbon brushes (Fig. 19)

The motor employs carbon brushes which are consumable parts. Replace the carbon brush with a new one when it becomes worn to its wear limit. Always keep carbon brushes clean and ensure that they slide freely within the brush holders.

Fig. 19 CAUTION: Using this planer with a carbon brush which is worn in excess of the wear limit will damage the motor. NOTE: Use HITACHI carbon brush No. 21 indicated in Fig. 19.

5. Replacing carbon brushes

Disassemble the brush caps (Fig. 1) with a slotted screwdriver. The carbon brushes can then be easily removed.

6. Replacing supply cord

If the replacement of the supply cord is necessary, this has to be done by Hitachi Authorized Service Center in order to avoid a safety hazard.

7. Replacing drive belt.

If the replacement of the drive belt is necessary, this has to be done by Hitachi Authorized Service Center in order to avoid a safety hazard.

8. Service and repairs

All quality power tools will eventually require servicing or replacement of parts because of wear from normal use. To assure that only authorized replacement parts will be used, all service and repairs must be performed by a HITACHI AUTHORIZED SERVICE CENTER, ONLY.

9. Service parts list

A: Item No. B: Code No. C: No. Used D: Remarks CAUTION: Repair, modification and inspection of Hitachi Power Tools must be carried out by a Hitachi Authorized Service Center. This Parts List will be helpful if presented with the tool to the Hitachi Authorized Service Center when requesting repair or other maintenance. In the operation and maintenance of power tools, the safety regulations and standards prescribed in each country must be observed. MODIFICATIONS: Hitachi Power Tools are constantly being improved and modified to incorporate the latest technological advancements. Accordingly, some parts (i.e. code numbers and/or design) may be changed without prior notice. Wear limit No. of carbon brush 0.20" (5mm) 0.47" (12mm) 01Eng_P20ST_US 10/24/12, 8:3212English

Never use any accessories other than those mentioned below. The use of any accessories other than those mentionded below or attachments not intended for use such as cup wheel, cut-off wheel or saw blade is dangerous and may cause personal injury or property damage. NOTE: Accessories are subject to change without any obligation on the part of the HITACHI. STANDARD ACCESSORIES

Blade sharpening Ass’y (Code No. 940653) NOTE: Specifications are subject to change without any obligation on the part of the HITACHI. 01Eng_P20ST_US 6/11/12, 3:12 PM13Français

04Back_P20ST_US.p65 9/20/12, 16:373637 04Back_P20ST_US.p65 6/11/12, 11:48 AM3738 04Back_P20ST_US.p65 6/11/12, 11:48 AM3839 04Back_P20ST_US.p65 6/11/12, 11:48 AM39WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are: ● Lead from lead-based paints, ● Crystalline silica from bricks and cement and other masonry products, and ● Arsenic and chromium from chemically-treated lumber. Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles.