Craftsman 875204840 Owner’s Manual

Owner's Manual

i PROFESSIONAL i

Continuous Operation

AIR GREASE GUN

Model No.

875.2O4840

WARNING:

Before operating tool, read

this manual and follow all
Safety Recommendations and

Operating Instructions.

• Safety

• Warranty

• Features & Operation

• Maintenance

• EspaSol

Sears, Roebuck and Co., Hoffman Estates, IL 60179 USA

Read Operating Instructions

Please become familiar with all the instructions and

warnings before operating any pneumatic tool.
Visually inspect tool for damage and loose or missing
parts. If the equipment is worn or shows signs of

damage, remove it from service and contact an
authorized Sears service center for repairs.

Always Wear Approved Eye Protection
Impact resistant eye protection should meet or exceed

the standards set forth in ANSI Z87.1, Occupational and

Educational Eye and Face Protection. Look for marking
Z87.1 on youreye protectionto ensure that it is an

approved style.

Hearing Protection is Recommended
Hearing protection should be used when the noise level
exposure equals or exceeds an 8 hour time-weighted

average sound level of 85dBA. Process noise, reflective
surfaces, other tools being operated nearby, all add to the

noise level in a given work area. If you are unableto
determine your noise level exposure, we recommend the
use of hearing protection.

Avoid Prolonged ER3osuretoVibration

Pneumatic tools can vibrate during usa. Prolonged

exposure to vibration or very repetitive hand and arm
movements can cause injury. Discontinue the use of any
tool if you experience tingling, numbness, discomfortor
pain in your hands or arms. You should consultyour
physician before resuming use of tool.

150 PSlG Maximum
This tool is designed to operate at an air pressure of 60
to 150 pounds per square inch gauge pressure (150

PSIG) maximum, at the tool. Use of higher air pressure

can and may cause injury.Also, the use of higherair

pressure placas the internal components under loads

and stresses they were not designed for, which could

cause premature tool failure.

NOTE: THE AIR SUPPLY SHOULD BE CLEAN, DRYAND

PREFERABLY LUBRICATED. FOR BEST RESULTS

DRAIN THE MOISTURE FROM YOUR COMPRESSOR

DAILY.

WARNING:

SOME DUST CREATED BY POWER SANDING, SAWING, GRIND-

ING, DRILUNG, AND OTHER CONSTRUCTION ACTIVFFIES

CONTAINS CHEMICALS KNOWN TO CAUSE CANCER, BIRTH

DEFECTS OR REPRODUCTIVE HARM. SOME EXAMPLES OF

THESE CHEMICALS ARE:

LEAD FROM LEAD-BASED PAINTS

CRYSTALLINE SILICAFROM BRICKS, CEMENTAND
OTHER MASONRY PRODUCTS

ARSENICAND CHROMIUM FROM CHEMICALLY
TREATEDLUMBER

YOUR RISK FROM THESE EXPOSURES VARIES,DEPENDING ON

HOW OFTEN YOU DO THIS TYPE OF WORK. TO REDUCE YOUR
EXPOSURE TOTHESE CHEMICALS, WORK IN AWELLVENTI-

LATEDAREAAN DWORK WITH APPROVED SAFETY EQUIPMENT
SUCH AS THOSE DUST MASKS THATARE SPECIALLY DE-
SIGNED TO FILTER OUT MICROSCOPIC PARTICLES.

FULL't'WO YEAR WARRANTY ON CRAFTSMAN
PROFESSIONAL AIR-DRIVE TOOLS

IfthisCraftsmanAir-DriveToolfailstogivecomplete
satisfactionwithintwoyearsfromthe date of

purchase,RETURN IT TO THE NEAREST SEARS
SERVICE CENTER/DEPARTMENT INTHE UNITED

STATES, and Sears willrepair it, freeof charge. Ifthis
Craftsmantoolis used forcommercialor rental

purposes,thiswarrantyappliesforonly 90 days from
the date ofpurchase,Thiswarrantygivesyouspecific

legal rights,andyou may also have other rightswhich
varyfrom stateto state.

Sears, Roebuck and Co., Dept. 817WA, Hoffman

Estates, IL 60179.

The Craftsman Model 875.204840 Continuous Flow
Grease Gun isdesignedfor both automotiveaswell

as heavy industrial usage.

The Craftsman professionalContinuous Flow Grease

Gun Model 875.204840 is designed to operate at 60 to
150 PSI. Lower pressure will reduce the performance

ofthe tool, while pressure higher than the rated 150
PSI will damage the internal components to the tool.

• Exclusive air piston design assures selfpriming.

• Fully automatic; cycles continuous grease flow

when the trigger is depressed.

• Heavy duty spring for prime retention.

• High pressure performance with 60 to 150PSI
generated at the compressor allows the tool to

deliver 2400 to 6000 PSI (40:1 ratio) of pressure

into the desired fitting.

Always use clean dry air. Excessive moistureand dirt

willgreatlyreduce the lifeof anyair motor.We
recommendtheinstallationofanin-linefilter-regulator-

lubricator as close to the toolas possible.

A 3/8" air hose isrequired upto a lengthof 8 ft. If

morelength is required,a 1/2"air hose shouldbe

connectedto the 3/8" hoseto ensure the toolhasthe

necessaryair supply.Be sure all hoses and fittings
are the correctsize and tightlysecured.

Instructions for the 3 ways to load your grease gun:
1,Cartridge Loading:

A) Remove the canister from the head,

B) Draw the plunger head back completely,
C) Insert the open end of the cartridge into the cannister

of the grease gun. Remove the seal or pull-tab from the
other end of the tube and tightly re-attach the cannister to

the gun head.

D) Press the plunger release valve at the bottom of the
cannister and release the plunger rod and pull down the

plunger handle.

2. Loading with a filler pump:
A) Draw back the plunger handle completely,

B) Insert plug intothe filler pump socket, Make sure the
socket is securely fastened to the plug,
C) Operate the grease gun from the filler pump,

D) Disconnect the grease gun from the filler pump,
E) Press the plunger release valve and pull down plunger

handle,

3. BulkFilling:
A) Remove canister from grease gun head.
B) Draw back the plunger handle completely and bulk fill
grease into empty canister.

C) Re-attach the canister to the gun head and press the
plunger release valve. Pull down the plunger handle and
begin using.

Lubrication
An automatic in-line filter-regulator-lubricator is

recommended as it increases tool life and keeps
the tool in sustained operation. The in-line

lubricator should be regularly checked and filled
with air tooloil. Proper adjustment of the in-line

lubricatorisperformed by placing a sheet ofpaper
nextto the exhaust portsand holdingthe throttle

open approximately 30 seconds. The lubricatoris

properly set when a light stain of oil collects on the
paper. Excessive amounts of oilshould be avoided.

In the event that it becomes necessary to store the

tool for an extended period of time (overnight,
weekend, etc.), itshould receive a generous

amount of lubricationat that time. The tool should
be runfor approximately 30 seconds to ensure oil

has been evenly distributed throughout the tool.
The tool should be stored in a clean and dry

environment.

Recommended lubricants: Use air tool oil or any
other high grade turbine oilcontaining moisture
absorbent, rust inhibitors,metal wetting agents and

an EP (extreme pressure) additive.

X Check air pressure.

X X X X Check for water in lines.

X X X X Oil tool with air tooloil.