Bostitch LHF2025K, EHF1838K User Manual

EHF1838K & LHF2025K

HARDWOOD FLOORING STAPLERS

ENGRAPADORAS PARA PISOS DE MADERA

AGRAFEUSES POUR BOIS DUR À PARQUET

OPERATION and MAINTENANCE MANUAL

MANUAL DE OPERACIÓN Y DE MANTENIMIENTO

MANUEL D’INSTRUCTIONS ET D’ENTRETIEN

BEFORE OPERATING THIS TOOL, ALL OPERATORS SHOULD STUDY THIS MANUAL TO UNDERSTAND AND FOLLOW THE SAFETY WARNINGS AND INSTRUCTIONS. KEEP THESE INSTRUCTIONS WITH THE TOOL FOR FUTURE REFERENCE. IF YOU HAVE ANY QUESTIONS, CONTACT YOUR BOSTITCH REPRESENTATIVE OR DISTRIBUTOR.

ANTES DE OPERAR ESTA HERRAMIENTA, TODOS LOS OPERADORES DEBERÁN ESTUDIAR ESTE MANUAL PARA PODER COMPRENDER Y SEGUIR LAS ADVERTENCIAS SOBRE SEGURIDAD Y LAS INSTRUCCIONES. MANTENGA ESTAS INSTRUCCIONES CON LA HERRAMIENTA PARA FUTURA REFERENCIA, SI TIENE ALGUNA DUDA, COMUNÍQUESE CON SU REPRESENTANTE DE BOSTITCH O CON SU DISTRIBUIDOR.

LIRE ATTENTIVEMENT LE PRÉSENT MANUEL AVANT D’UTILISER L’APPAREIL. PRÉTER UNE ATTENTION TOUTE PARTICULIÈRE AUX CONSIGNES DE SÉCURITÉ ET AUX AVERTISSEMENTS. GARDER CE MANUEL AVEC L’OUTIL POUR FUTUR RÉFÉRENCE. SI VOUS AVEZ DES QUESTIONS, CONTACTEZ VOTRE REPRÉSENTANT OU VOTRE CONCESSIONNAIRE BOSTITCH.

189854RC 08/16

Definitions: Safety Alert Symbols and Words

This instruction manual uses the following safety alert symbols and words to alert you to hazardous situations and your risks of personal injury or property damage.

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a potentially haz ard ous situation which, if not avoided, may result in minor or mod er ate injury.

Used without the safety alert symbol indicates potentially hazardous situation which, if not avoided, may result in property damage.

INTRODUCTION

The Bostitch EHF1838K & LHF2025K are precision-built tools, designed for high speed, high volume fastening. These tools will deliver efficient, dependable service when used correctly and with care. As with any fine power tool, for best performance the manufacturer’s instructions must be followed. Please study this manual before operating the tool and understand the safety warnings and cautions. The instructions on installation, operation and maintenance should be read carefully, and the manuals kept for reference. NOTE: Additional safety measures may be required because of your particular application of the tool. Contact your BOSTITCH representative or distributor with any questions concerning the tool and its use. BOSTITCH Fastening Systems,701 E. Joppa Road, Towson, Maryland 21286, U.S. & Canada Only, É.-U. et Canada seulement.

INDEX

Safety Instructions ..............................................3

Tool Components...............................................4

Tool/Fastener Specifications .....................................5

Air Supply and Connections ......................................6

Loading the Tool ...............................................7

Adjustment Instructions .......................................8 & 9

Tool Operation ................................................10

Tool Operation Check .......................................... 11

Maintaining the Pneumatic Tool .................................11

Troubleshooting ..............................................12

Maintenance Checklist..........................................13

Other Bostitch Flooring Products .................................14

NOTE:

Bostitch tools have been engineered to provide excellent customer satisfaction and are designed to achieve maximum performance when used with precision Bostitch fasteners engineered to the same exacting standards. Bostitch cannot assume responsibility for

product performance if our tools are used with fasteners or accessories not meeting the specific requirements established for genuine Bostitch nails, staples and accessories.

LIMITED WARRANTY — U.S. and Canada Only

Bostitch Fastening Systems “Bostitch” warrants to the original retail purchaser that the product purchased is free from defects in material and workmanship, and agrees to repair or replace, at Bostitch’s option, any defective Bostitch branded pneumatic stapler or nailer for a period of seven (7) years from date of purchase (one (1) year from the date of purchase for compressors and tools used in production applications). Warranty is not transferable. Proof of purchase date required. This warranty covers only damage resulting from defects in material or workmanship; it does not cover conditions or malfunctions resulting from normal wear, neglect, abuse, accident or repairs attempted or made by other than our national repair center or authorized warranty service centers. Driver blades, bumpers, o-rings, pistons and piston rings are considered normally wearing parts. For optimal performance of your Bostitch tool always use genuine Bostitch fasteners and replacement parts. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. BOSTITCH SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES. Some states and countries do not allow limitations on how long an implied warranty lasts, or the exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state and country to country. To obtain warranty service in the U.S. return the product, together with proof of purchase, to the U.S. Bostitch National or Regional Independent Authorized. Warranty Service Center. In the U.S. you may call us at 1-800-556-6696 or visit www.BOSTITCH.com for the location most convenient for you. In Canada please call us at 1-800-567-7705 or visit www.BOSTITCH.comus at 1-800-556- 6696 or visit www.BOSTITCH.com for the location most convenient for you. In Canada please call us at 800-567-7705 or visit www.BOSTITCH.com

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SAFETY INSTRUCTIONS

EYE PROTECTION which conforms to ANSI specifications and provides protection against flying particles both from the FRONT and SIDE should ALWAYS be worn by the operator and others in the work area when connecting to air supply, loading, operating or servicing this tool. Eye protection is required to guard against flying fasteners and debris, which could cause severe eye injury.

The employer and/or user must ensure that proper eye protection is worn. Eye protection equipment must conform to the requirements of the American National Standards Institute, ANSI Z87.1 and provide both frontal and side protection. NOTE: Non-side shielded spectacles and face shields alone do not provide adequate protection.

CAUTION: Additional Safety Protection will be required in some environments. For example, the working area may include exposure to noise level which can lead to hearing damage. The employer and user must ensure that any necessary hearing protection is provided and used by the operator and others in the work area. Some environments will require the use of head protection equipment. When required, the employer and user must ensure that head protection conforming to ANSI Z89.1 is used.

AIR SUPPLY AND CONNECTIONS

Do not use oxygen, combustible gases, or bottled gases as a power source for this tool as tool may explode, possibly causing injury.

Do not use supply sources which can potentially exceed 200 psig ( burst, possibly causing injury.

The connector on the tool must not hold pressure when air supply is disconnected. If a wrong fitting is used, the tool can remain charged with air after disconnecting and thus will be able to drive a fastener even after the air line is disconnected possibly causing injury.

Do not pull trigger or depress contact arm while connected to the air supply as the tool may cycle, possibly causing injury.

Always disconnect air supply: 1.) Before making adjustments; 2.) When servicing the tool;

3.) When clearing a jam; 4.) When tool is not in use; 5.) When moving to a different work area, as accidental actuation may occur, possibly causing injury.

14 kg/cm

) as tool may

LOADING TOOL

When loading tool: 1.) Never place a hand or any part of body in fastener discharge area of tool; 2.) Never point tool at anyone; 3.) Do not pull the trigger or depress the trip as accidental actuation may occur, possibly causing injury.

OPERATION

Always handle the tool with care: 1.) Never engage in horseplay; 2.) Never pull the trigger unless nose is directed toward the work; 3.) Keep others a safe distance from the tool while tool is in operation as accidental actuation may occur, possibly causing injury.

The operator must not hold the trigger pulled on contact arm tools except during fastening operation as serious injury could result if the trip accidentally contacted someone or something, causing the tool to cycle.

Keep hands and body away from the discharge area of the tool. A contact arm tool may bounce from the recoil of driving a fastener and an unwanted second fastener may be driven possibly causing injury.

Check operation of the contact arm mechanism frequently. Do not use the tool if the arm is not working correctly as accidental driving of a fastener may result. Do not interfere with the proper operation of the contact arm mechanism.

Do not drive fasteners on top of other fasteners or with the tool at an overly steep angle as this may cause deflection of fasteners which could cause injury.

Do not drive fasteners close to the edge of the work piece as the wood may split, allowing the fastener to be deflected possibly causing injury.

This nailer produces SPARKS during operation. NEVER use the nailer near flammable substances, gases or vapors including lacquer, paint, benzine, thinner, gasoline, adhesives, mastics, glues or any other material that is -- or the vapors, fumes or by-products of which are

-- flammable, combustible or explosive. Using the nailer in any such environment could cause an EXPLOSION resulting in personal injury or death to user and bystanders.

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MAINTAINING THE TOOL

When working on air tools note the warnings in this manual and use extra care when evaluating problem tools.

If the tool has been dropped or you suspect tool damage perform tool operation check as defined in the tool operation check section.

LHF2025K TOOL COMPONENTS

Frame

Easy-Sight Tongue Engagement

Adjustable Precision Knobs

Reload Indicator

Trigger

Magazine Release Button

EHF1838K TOOL COMPONENTS

Easy-Sight Tongue Engagement

Adjustable Precision Knobs

Reload Indicator

Frame Protector

Frame Cap

Over-Molded Comfort Grip

Rear Exhaust

Air Fitting

Frame

Frame Protector

Frame Cap

Magazine Release Button

Trigger

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Over-Molded Comfort Grip

Rear Exhaust

Air Fitting

TOOL SPECIFICATIONS

All dimensions in inches unless otherwise specied.

EHF1838K Description Engine Type Operation Pressure Range Maximum Operation Pressure Fastener Type Fastener Gauge Fastener Range

Magazine Capacity Length Width Height Weight

70 to 120 psig (4.9 - 8.4 kg/cm2). Select the operating pressure in this range for best fastener performance. The EHF1838K requires 1.94 cubic feet per minute or cfm (55 liters per minute or L/min) of free air at 80 PSI (5.6 kg/cm feet per minute or cfm (54 liters per minute or L/min) of free air at 80 PSI (5.6 kg/cm of 60 fasteners per minute. To determine the appropriately sized air compressor, take the actual rate at which the tool will be run and compare the required cfm (L/min) to the compressor’s free air delivery (cfm or L/min) at 80 PSI (5.6 kg/cm

For example, if your fastener usage averages 30 fasteners per minute, you need 50% of the required air volume (cfm or L/min) that is required to operate the tool at the rate of 60 fasteners per minute. In this case, be sure that your air compressor can deliver a minimum of 0.97 cfm (27.5 L/min) at 80 PSI (5.6 kg/cm optimum performance.

) to operate at a rate of 60 fasteners per minute. The LHF2025K requires 1.90 cubic

18-ga Flooring Stapler 20-ga Flooring Stapler

Oil-free Oil-free

70-120 psig (4.9 - 8.4 kg/cm

120 psig (8.4 kg/cm

SX5035 Series SB97-1GLS

18 Gauge 20 Gauge

1” - 1-1/2” (25 mm - 38 mm) 1” (25 mm)

100 125

9-1/4” (235 mm) 9-1/4” (235 mm)

2-3/4” (70 mm) 2-3/4” (70 mm)

9-7/8” (251 mm) 8.5” (216 mm)

3.5 lb (1.57 kg) 2.9 lb (1.32 kg)

) 70-120 psig (4.9 - 8.4 kg/cm2)

) 120 psig (8.4 kg/cm2)

LHF2025K

) to operate at a rate

) for

FASTENER SPECIFICATIONS

Tool Model Fastener Type

EHF1838K

Staples

LHF2025K Staples

*Visit www.BOSTITCH.com for further details.

NOTE:

BOSTITCH tools have been engineered to provide superior customer satisfaction and are designed to achieve maximum perfomance when used with precision BOSTITICH fasteners engineered to the same exacting standards. BOSTITCH cannot assume responsibility for product performance if our tools are used with

fasteners or accessories not meeting the specic requirements established for genuine BOSTITCH fasteners and accessories.

Fastener SKU Crown Width Gauge Length

SX50351G

SX50351-1/8G

SX50351-3/16G

SX50351-1/4G SX50351-3/8G SX50351-1/2G

SB97-1GLS 3/16” (4.7 mm) 20 1” (25 mm)

7/32” (5.5 mm) 7/32” (5.5 mm) 7/32” (5.5 mm) 7/32” (5.5 mm) 7/32” (5.5 mm) 7/32” (5.5 mm)

18 1” (25 mm) 18 1-1/8” (28 mm) 18 1-3/16” (30 mm) 18 1-1/4” (32 mm) 18 1-3/8” (35 mm) 18 1-1/2” (38 mm)

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AIR SUPPLY AND CONNECTIONS

Do not use oxygen, combustible gases, or bottled gases as a power source for this tool as tool may explode, possibly causing injury.

FITTINGS:

Install a male plug on the tool which is free flowing and which will release air pressure from the tool when disconnected from the supply source.

HOSES:

Air hoses should have a minimum of 150 psig (10.6 kg/cm2) working pressure rating or 150 percent of the maximum pressure that could be produced in the air system. The supply hose should contain a fitting that will provide “quick disconnecting” from the male plug on the tool.

SUPPLY SOURCE:

Use only clean regulated compressed air as a power source for this tool. NEVER USE OXYGEN, COMBUSTIBLE GASES, OR BOTTLED GASES, AS A POWER SOURCE FOR THIS TOOL AS TOOL MAY EXPLODE.

REGULATOR:

A pressure regulator with an operating pressure of 0 - 125 psig (0 - 8.8 kg/cm2) is required to control the operating pressure for safe operation of this tool. Do not connect this tool to air pressure which can potentially exceed 200 psig (14 kg/cm

OPERATING PRESSURE:

Do not exceed recommended maximum operating pressure as tool wear will be greatly increased. The air supply must be capable of maintaining the operating pressure at the tool. Pressure drops in the air supply can reduce the tool’s driving power. Refer to “TOOL SPECIFICATIONS” for setting the correct operating pressure for the tool.

) as tool may fracture or burst, possibly causing injury.

Quick Disconnect Plug

Quick Connect Plug

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LOADING THE EHF1838K & LHF2025K

TO PREVENT ACCIDENTAL INJURIES:

• Never place a hand or any other part of the body in nail discharge area of tool while the air supply is connected.

• Never point the tool at anyone else.

• Never engage in horseplay.

• Never pull the trigger unless nose is directed at the work.

• Always handle the tool with care.

• Do not pull the trigger or depress the trip mechanism while loading the tool.

LOADING THE EHF1838K & LHF2025K

1. Depress magazine release button and pull back magazine.

2. Open magazine fully and turn tool sideways with discharge area pointed away from yourself and others. Load staples in channel.

3. Push magazine forward until latch is

engaged.

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ADJUSTMENT INSTRUCTIONS

KNOB

FLOOR

VAPOR BARRIER

FOOT

NOSE

FRONT GUIDE

SUBFLOOR

TONGUE OF FLOORING

TO ADJUST THE TOOL TO THE FLOORING:

1. Loosen both Knobs until the Foot and Front Guide move freely.

2. Engage the Nose with the Tongue of Flooring.

3. Push the Front Guide to the subfloor and the Foot to the flooring.

4. Tighten both Knobs.

Refer to the ooring manufactures installation instructions for proper fastener and fastening technique.

Important: Test the tool on a scrap piece of flooring to ensure proper staple placement and

compatibility. BOSTITCH cannot assume responsibility for product performance if the tool is used improperly or not in accordance with the flooring manufacturer’s installation instructions.

With tool properly located on tongue of flooring, slide the tool along the tongue without lifting the tool off the floor while fastening as shown above and to the left.

AIR PRESSURE:

Air pressure must be adjusted to properly countersink the staples. Air pressure should be set using a scrap piece of flooring to adjust the air pressure for correct countersinking. (See following page)

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BEFORE OPERATING THIS TOOL, STUDY THESE INSTRUCTIONS AND OPERATION AND MAINTENANCE MANUAL FOR YOUR TOOL TO UNDERSTAND THE SAFETY WARNINGS AND INSTRUCTIONS. IF YOU HAVE ANY QUESTIONS, CONTACT YOUR BOSTITCH REPRESENTATIVE OR DISTRIBUTOR. SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.

FLOOR

STAPLE

• Air pressure too low.

• Staple crown above tongue.

• Increase air pressure.

• Air pressure too high.

• Staple buried.

• Lower air pressure.

• Correct air pressure.

• Staple just below surface.

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TOOL OPERATION

BEFORE HANDLING OR OPERATING THIS TOOL:

I. READ AND UNDERSTAND THE WARNINGS CONTAINED IN THIS MANUAL. II. REFER TO “TOOL SPECIFICATIONS” IN THIS MANUAL TO IDENTIFY THE OPERATING SYSTEM

ON YOUR TOOL.

OPERATION

The operator must not hold the trigger pulled on contact trip tools except during fastening operation, as serious injury could result if the trip accidentally contacted someone or something, causing the tool to cycle.

Keep hands and body away from the discharge area of the tool. A contact trip tool may bounce from the recoil of driving a fastener and an unwanted second fastener may be driven, possibly causing injury.

SEQUENTIAL TRIP OPERATION:

In SEQUENTIAL TRIP MODE the contact trip operates in conjunction with the trigger to drive a fastener. To operate a sequential trip tool, first position the contact trip on the work surface WITHOUT PULLING THE TRIGGER. Depress the contact trip and then pull the trigger to drive a fastener. As long as the contact trip is contacting the work and is held depressed, the tool will drive a fastener each time the trigger is depressed. If the contact trip is allowed to leave the work surface, the sequence described above must be repeated to drive another fastener.

If the tool has been dropped or you suspect tool damage perform tool operation check as defined in the tool operation check section.

IN ADDITION TO THE OTHER WARNINGS CONTAINED IN THIS MANUAL OBSERVE THE FOLLOWING FOR SAFE OPERATION

• Use the BOSTITCH pneumatic tool only for the purpose for which it was designed.

• Never use this tool in a manner that could cause a fastener to be directed toward the user

or others in the work area.

• Do not use the tool as a hammer.

• Always carry the tool by the handle. Never carry the tool by the air hose.

• Do not alter or modify this tool from the original design or function without approval from

BOSTITCH, INC.

• Always be aware that misuse and improper handling of this tool can cause injury to

yourself and others.

• Never clamp or tape the trigger or contact trip in an actuated position.

• Never leave a tool unattended with the air hose attached.

• Do not operate this tool if it does not contain a legible WARNING LABEL.

• Do not continue to use a tool that leaks air or does not function properly. Notify your nearest

Bostitch representative if your tool continues to experience functional problems.

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TOOL OPERATION CHECK

CAUTION: Remove all fasteners from tool before performing tool operation check.

If the tool is dropped or you suspect tool damage perform tool operation check.

SEQUENTIAL TRIP OPERATION:

A. Press the contact trip against the work surface, without touching the trigger.

THE TOOL MUST NOT CYCLE.

B. Hold the tool off the work surface and pull the trigger.

THE TOOL MUST NOT CYCLE.

Release the trigger. The trigger must return to the trigger stop on the frame.

C. Pull the trigger and press the contact trip against the work surface.

THE TOOL MUST NOT CYCLE.

D. With finger off the trigger, press the contact trip against the work surface. Pull the trigger.

THE TOOL MUST CYCLE.

MAINTAINING THE PNEUMATIC TOOL

When working on air tools, note the warnings in this manual and use extra care evaluating problem tools.

If the tool has been dropped or you suspect tool damage perform tool operation check as defined in the tool operation check section.

CAUTION: Pusher spring (constant force spring). Caution must be used when working with the spring assembly. The spring is wrapped around, but not attached to, a roller. If the spring is extended beyond its length, the end will come off the roller and the spring will roll up with a snap, with a chance of pinching your hand. Also the edges of the spring are very thin and could cut. Care must also be taken to insure no permanent kinks are put in the spring as this will reduce the springs force.

REPLACEMENT PARTS:

Use only genuine BOSTITCH replacement parts. Do not use modified parts.

ASSEMBLY PROCEDURE FOR SEALS:

When repairing a tool, make sure the internal parts are clean and lubricated. Use Parker “O”-LUBE, Magnalube, or equivalent on all “O”-rings. Coat each “O”-ring with lubricant before assembling.

AIR SUPPLY-PRESSURE AND VOLUME:

Air volume is as important as air pressure. The air volume supplied to the tool may be inadequate because of undersize fittings and hoses, or from the effects of dirt and water in the system. Restricted air flow will prevent the tool from receiving an adequate volume of air, even though the pressure reading is high. The results will be slow operation, misfeeds or reduced driving power. Before evaluating tool problems for these symptoms, trace the air supply from the tool to the supply source for restrictive connectors, low points containing water and anything else that would prevent full volume flow of air to the tool.

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TROUBLE SHOOTING

PROBLEM CAUSE CORRECTION

Trigger valve housing leaks air O-ring cut or cracked ....................Replace O-ring

Trigger valve stem leaks air O-ring/seals cut or cracked ..............Replace trigger valve assembly

Frame/nose leaks air O-ring or gasket is cut or cracked. . . . . . . . . Replace O-ring or gasket

Bumper cracked/worn ...................Replace bumper

Frame/cap leaks air Damaged gasket or seal ................. Replace gasket or seal

Cracked/worn head valve ...............Replace head valve

Loose cap screws ......................Tighten and recheck

Failure to cycle Air supply restriction ....................Check air supply equipment

Worn head valve .......................Replace head valve

Broken cylinder cap spring ...............Replace cylinder cap spring

Head valve stuck in cap .................Disassemble / Check / Lubricate

Lack of power; slow to cycle Broken cylinder cap spring ...............Replace cap spring

Rings/seals cut or cracked ...............Replace rings/seals

Exhaust blocked ........................Check bumper, head valve spring

Trigger assembly worn/leaks .............Replace trigger assembly

Dirt/tar build up on driver ................ Disassemble nose/driver to clean

Cylinder sleeve not seated correctly

on bottom bumper ......................Disassemble to correct

Air pressure too low .....................Check air supply equipment

Skipping fasteners;

intermittent feed Worn bumper ...........................Replace bumper

Tar/dirt in driver channel .................Disassemble and clean nose and driver

Air restriction/inadequate air flow through

quick disconnect socket and plug .........Replace quick disconnect fittings

Worn piston ring ........................Replace ring, check driver

Damaged pusher spring .................Replace spring

Low air pressure ........................Check air supply system to tool

Loose magazine nose screws ............Tighten all screws

Fasteners too short for tool. . . . . . . . . . . . . . . Use only recommended fasteners

Bent fasteners ..........................Discontinue using these fasteners

Wrong size fasteners ....................Use only recommended fasteners

Leaking head cap gasket ................Tighten screws/replace gasket

Trigger valve O-ring cut/worn ............Replace O-ring

Broken/chipped driver ...................Replace driver (check piston ring)

Dry/dirty magazine ......................Clean/lubricate use BOSTITCH Air Tool Lubricant

Worn magazine .........................Replace magazine

Fasteners jam in tool Driver channel worn ....................Replace nose/check door

Wrong size fasteners ....................Use only recommended fasteners

Bent fasteners ..........................Discontinue using these fasteners

Loose magazine/nose screws ............ Tighten all screws

Broken/chipped driver ...................Replace driver

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