Sears 919.18416 User Manual

Page 1
SEARS
OWNERS
MANUAL
CRAFTSMAN.
SINGLE STAGE AIR COMPRESSOR
MODEL NO.
919.184160
IMPORTANT:
Read the Safety Guidelines and All Instructions Carefully Before
ASSEMBLY OPERATION
MAINTENANCE REPAIR PARTS
Record in the spaces provided. (1) The model number which can befound
on the label on the front of the air tank
saddle.
(2) The code number which can be found
on the foil label on the side of the air tank.
(3) The Manufacturer's Number (ASME
Code Compressors only) is located on the metal data plate which is welded
onto the side of the air tank. (This data plate is painted the same color as the
tank.)
(4) The Motor Manufacturer's name which
is located on the motor label.
(5) The Motor Mfg. number - also located
on the motor label.
Retain these numbers for future refer-
ence.
Model No.
Code No.
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
MGP-184160 3/18/99
Page 2
TABLE OF CONTENTS
Page
SAFETYGUIDELINES .............................................................................. 2
WARNING CHART ................................................................................... 3
SPECIFICATION CHART .......................................................................... 5
GLOSSARY ............................................................................................. 5
ACCESSORIES FOR USEWlTH
SEARSAIR COMPRESSORS ............................................................ 5
GENERALINFORMATION .............. _..,.;................................................... 6
DESCRIPTION OF OPERATION ....... _........... ............................................ 6
INSTALLATION AND BREAK-IN PROCEDoURES....................................... 6
Location of Air Compressor .............................................................. 6
Piping ............................................................................................... 7
Lubrication and Oil ........................................................................... 7
Wiring Instructions ............................................................................ 7
Wiring Diagram ................................................................................. 7
Break-In Procedures ......................................................................... 8
OPERATING PROCEDURES ...................................................................8
MAINTENANCE ....................................................................................... 8
Air Compressor ................................................................................ 8
Air Filter - Inspection and Replacement ............................................ 8
Oil - Checking and Changing ............................................................ 9
Air Tank - Draining Water .................................................................. 9
Check Valve - Inspection and Replacement ..................................... 9
Safety Valve Inspection ....................................................... 9
Motor ................................................................................................ 9
Belt - Replacement .......................................................................... 9
Pulley'and Flywheel - Alignment ....................................................... 10
TROUBLESHOOTING GUIDE .................................................................. 10
AIR COMPRESSOR DIAGRAM ................................................................ 12
Parts List .......................................................................................... 13
COMPRESSOR PUMP DIAGRAM ............................................................ 14
Parts List .......................................................................................... 15
HOWTO ORDER REPAIR PAR'rS ........................................................... 16
WARRANTY ............................................................................................ 16
SAFETY GUIDELINES - DEFINITIONS
This manual contains information that is important for you to know
and understand. This information relatestoprotectingYOUR SAFETY
and PREVENTING EQUIPMENT PROBLEMS. To help you recog-
nizethisinformation, we use sym- bols to the right. Please read the manual and pay attention to these
sections.
DANGER
URGENT SAFETY INFORMATION - A HAZARD THAT WILL CAUSE SERIOUS INJURY OR LOSS
OF LIFE.
I _WARNING I
IMPORTANT S/_FETY INFORMATION - A HAZARD THAT MIGHT CAUSE SERIOUS
INJURY OR LOSS OF LIFE.
2 -- Eng
ACAUTION I
information for preventing damage to equipment.
I NOTE I
Information that you should pay special attention to.
Page 3
IMPROPER OPERATION OR MAINTENANCE OF THIS PRODUCT COULD RESULT IN SERIOUS INJURY AND PROPERTY DAMAGE. READ AND UNDERSTAND ALL WARNINGS AND OPERATING
INSTRUCTIONS BEFORE USING THIS EQUIPMENT.
HAZARD
RISK OF BURSTING
IMPORTANT SAFE'rY INSTRUCTIONS
SAVE THESE INSTRUCTIONS *
WHAT CAN HAPPEN HOW TO PREVENT IT
Air _nk
THE FOLLOWING CONDITIONS
C_ lead to a weakening of the tank, and RESULT IN A VIOLENT TANK
EXPL0__ION:
1. FAILURE TO PROPERLY DRAIN condensed'WATER FROM THE T_, causing rust and thinning
of the tank steel.
2. MODIFICATIONS or attempted
repairs TO TI4.E TANK.
3. Unauthorized MODIFICATIONS TO
THE PRESSURE
SAF VA OR any OTHER
COMPONENTS WHICH CONTROL tank PRESSURE.
Attachments and Accessories
EXCEEDING THE PRESSURE RATING OF AIR TOOLS. spray guns, air operated
accessories, tires AND other INFLATABLES CAN CAUSE THEM TO EXPL__Xp__=or fly apart, and could result in serious injury.
DRAIN TANK DAILY OR AFTER EACH USE. If tank develops a leak, replace it
immediately with a new tank or new compressor outfit.
NEVER drill into, weld, or MAKE ANY
MODIFICATIONS TO THE TANK or its
attachments. Never attempt to repair a damaged or leaking tank. Replace with a new tank.
The tank is designed to withstand specific operating pressures.
MAKE ADJUSTMENTS OR PARTS
SUBSTITUTIONS TO alter the
FACTORY SET operating P_.
FOR essential CONTROL OF AIR PRESSURE. you must INSTALL A
PRESSURE REGULATOR AND REGULATED AIR PRESSURE GAI,I_E to
the air outlet of your compressor,
Follow the equipment manufacturers recommendation and never exceed the
maximum allowable pressure rating of attachments. NEVER USE THE COMPRESSOR TO INFLATE SMALL LOW-PRESSURE OBJECTS SUCH AS
CHILDREN'S TOYS. FOOTBALLS. BASKET AL SET
RISK OF ELECTRIC SHOCK
RISK OF EXPLOSION OR FIRE
Your AIR COMPRESSOR is powered by electrieity. Like any other electrically
powered device, IF it is NOT
PROPERLY it MAY CAUSE
ELECTRICAL SHOCK.
ELECTRICAL GROUNDING: FAILURE TO PROVIDE ADEQUATE GROUND-
ING TO THIS PRODUCT COULD RESULT IN SERIOUS INJURY OR DEATH FROM ELECTROCUTION. SEE
GROUNDING INSTRUCTIONS
It is normal for ELECTRICAL
CONTACTS within the motor and pressure switch to SPARK
THE COMPRESSOR START S OR
STOPS.
3 -- Eng
Any ELECTRICAL WIRING OR REPAIRS required to this product SHOULD BE
PERFORMED BY UA ED ERVl PERSONNEL OR a
ELECTRICIAN, in accordance with national and local electrical codes.
MAKE CERTAIN that the E_=___€__T._R_d_
to which the compressor is
connected PROVIDES PROPER
ELECTRICAL GROUNDING, CR_
VOLTAGE. AND ADEQUATE FUSE
PROTECTION.
Never operate the compressor outdoors
when it is raining.
Always OPERATE the COMPRESSOR IN
a well ventilated AREA FREE OF GASOLINE OR SOLVENT VAPORS.
If spraying flammable materials, LOCATE
COMPRESSOR at least 20 FEET AWAy FROM SPRAY AREA.
STORE FLAMMABLE MATERIALS in a secure location AWAY FROIq
COMPRESSOR.
Page 4
IMPORTANT SAFETY INSTRUCTIONS (contfd)
HAZARD WHAT CAN HAPPEN HOW TO PREVENT IT
RISK TO BREATHING
RISK FROM FLYING OBJECTS
The OM SED A from your compressor NOT FOR
_! The airstream may contain carbon monoxide or other toxic vapors, or
particles from the tank orother
components.
SPRAYED MATERIALS such as paint,
paint solvents,paint remover, insecticides,
weed killers, etc., CONTAIN HARMFUL VAPORS and poisons.
The COMPRESSED AIR STREAM CAN
cause soft tissue _damage, and can PROPEL dirt, chips, loose
and small objects at high speed, resulting inproperty damage or personal
injury.
NEVER INHALE AIR FROM TH E
_, either directly or from a
breathing device connected to the compressor. WORK IN AN AREA
equipped WITH GOOD CRO -
VENTILATION.
Read and FO W TH AFET INSTRUCTIONS provided onthe label or
safety data sheet FOR THE MATERIAL YOU ARE SPRAYING. USE A NIOSH/
MSHA APPROVED RESPIRATOR designed FOR use with YOUR specific
APPLICATION.
ALWAYS WEAN ANSI Z87.1 APPROVED SAFETY GLASSES with side shields
when using the compressor.
NEVER POINT any nozzle or SPRAYER
toward any part of the body or AT
or animals.
Always TURN the COMPRESSOR AND BLEED E S R from the air
line _ attempting maintenance,
A C ING TO or accessories.
RISK FROM MOVING PART:
RISK OF BURN
SC0M1098
The COMPRESSOR CYCLES AUTOMATICALLY WHEN the
PRESSURE SWITCH IS IN THE ON/
AUTO POSITION! If you attempt repair
or maintenance while the compressor is operating, or with the switch in the ON/
AUTO position, you can expose yourself to moving parts. These MOVING PARTS
CAN CAUSE SERIOUS INJURY or damage if they come into contact with
you oryour clothin_
Contact with HOT PARTS such as the compressor head or outlet tubes
COULD RESULT IN A SERIOUS SKIN BUNt
Always UNPLUG the COMPRESSOR AND RELEASE AIR PRESSURE from the
tank and any attachments BEFORE ATTEMPTING any MAINTENAN OR
REPAIR.
NEVER OPERATE the WITH GUARDS or covers which are
damaged or _.
NEVER TOUCH HOT COMPONEN'F_ during or immediately after operation of
the compressor. Do not reach around protective shrouds or attempt
maintenance until unit has been allowed to cool.
4 _ Eng
Page 5
SPECIFICATION CHART
Model No. 919.184160 Horsepower 6.5 HP
Displacement CFM at Max. Pressure 15
Bore 2 718 Stroke 2" Voltage - Single Phase 220
Minimum Branch Circuit Requirement 20 amp
*Fuse Type Fusetron Type "T" Amperage at Max. Pressure 15
Air Tank Capacity - Gallons 60 gal ASME Approximate Cut-in Pressure 100 Approximate Cut-out Pre._sure 125
SCFM@ 90 psig 10.5 SCFM@ 40 psig 13.0
UL Listed Yes
*A circuit breaker is preferred. Use only a fuse or circuit breaker that is the same rating as the branch circuit the air compressor is operated on.
GLOSSARY
CFM: Cubic feet per minute.
SCFM: Standard cubic feet per minute; a unit of mea-
sure of air delivery.
PSIG: Pounds per square inch gauge; a unit of measure of pressure.
ASME:American,Society of Mechanical Engineers; made, tested, inspected and registered to meetthe standards
of the ASME.
UL Listed: Underwriters Laboratories; samples of com- pressor outfits taken from production were submitted to UL and found to comply with their requirements for
design and performance.
Cut-Out Pressure: When you turn onyouraircompres-
sorand itbegins torun, air pressure intheairtank begins
to build. It builds to a certain high pressure before the
motor automatically shuts off - protecting your air tank from pressure higher than its capacity. The high pres-
sure at which the motor shuts off is called "cut-out
pressure."
Cut-In Pressure: While the motor is off, air tank pres- suredrops as you continueto useyour accessory.When
the tank pressure drops to a certain low level the motor willre-start automatically. The low pressureat whichthe
motor automatically re-starts iscalled "cut-in pressure."
To Lock-Out Power: Place a lock on the line power switch so no one else can turn on the power.
ACCESSORIES FOR USE WITH SEARS AIR COMPRESSORS
The following accessories are available through the current Power and Hand Tool Catalog or full-line Sears stores.
SPRAY GUNS
BLOW GUNS
AIR CAULKING GUNS
AIR POWERED WASHER GUNS
SAND BLASTERS
AIR BRUSHES
IN LINE FILTERS
TIRE AIR CHUCKS
PAINT TANKS
AIR TANKS
INFLATOR KITS
QUICK CONNECTOR SETS (various sizes)
AIR PRESSURE REGULATORS
" OIL FOG LUBRICATORS
AIR TOOLS Sanders
Drills
Impact Wrenches Hammers
AIR HOSE:
1/4", 3/8" OR 1/2" I.D. in various lengths
5 --Eng
Page 6
GENERAL INFORMATION
You have purchased an air compressor unit consisting
of atwo cylinder, single stage air compressor pump, an ASME air tank, associated controls and instruments.
This air compressor must be permanently mounted in
place.
Your air compressor can be used for operating paint
spray guns, air tools, caulking guns, grease guns, air brushes, sandblasters, inflating tires and plastic toys,
DESCRIPTION OF OPERATION
Air Compressor Pump: To compress air, the pistons
move upand down inthecylinders. On the downstroke, air is drawn in through the air intake filter and then through theair intakevalves. The exhaust valve remains
closed. On the upstroke of the piston, air is com-
pressed. The intakevalves close and compressed air is
forced outthroughthe exhaust valves, throughtheoutlet tube, through the check valve and into the air tank. Working air is not available until the compressor has
raised air tank pressure above that required at the air
outlet.
Check Valve: When the air corn pressor isoperating, the
check valve is "open," allowing compressed air to enter
the airtank. When the aircompressor reaches "cut-out"
pressure, the check valve "closes," allowing air pres-
sure to remain inside the air tank. If the air is not
unloaded, the motor will try to start, but will beunable to.
The check valve allows the motor to re-start freely.
spraying weed killers, insecticides, etc. An air pressure
regulator is usu ally necessary for most of these applica-
tions. Regulators can be purchased from most Sears
stores orthrough the current Sears Power and Hand Tool Catalog.
Separate airtransformers which combine the functions of air regulation and/or moisture and dirt removal should
be used where applicable.
Some form of piping or shut-off valve must be installed
before operating the aircorn pressor. A 1/2" NPTshut-off
globe valve should be installed at the air compressor tank. Do not use a ball valve.
Pressure Switch: The pressure switch automatically starts
the motor when the air tank pressure drops below the factory set "cut-in" pressure. Itstopsthe motorwhen the
air tank pressure reaches the factory set "cut-out" pressure.
Pressure Release Valve: The pressure release valve is
designed to automatically release compressed airfrom the compressor head and the outlet tube when the air compressor reaches "cut-out" pressure or isshut off. If tt_eair isnot released, the motor willtry to start but will
be unable to. The pressure release valve allows the motorto restart freely. When the motor stops running, air
will be heard escaping for a few seconds. No airshould
be heard leaking when the motor is running.
Safety Valve: Ifthe pressureswitch does not shut offthe air compressorat ornearitscut-out pressuresetting,the
safety valve willprotect against high pressureby "pop-
ping out" at itsfactory set pressure (slightlyhigher than
the pressureswitch cut-out setting).
INSTALLATION AND BREAK-IN PROCEDURES
Location of the Air Compressor
Operate the air compressor in a clean, dry and well
ventilated area. The air intake filter must be kept clear of
obstructions which could reduce air delivery of the air
compressor. The air compressor should be located at
least 12" away from walls or other obstructions that could interfere with the flow of air th rough the fan bladed
flywheel. The air compressor crankcase and head are
designed with fins to provide proper cooling. If the humidity is high, a Sears air filter can be installed to
remove excessive moisture.
The air compressor should be as near to air outlets as
possible in order to avoid long pipe lines. Do not place
the air compressor where heat is excessive.
6 -- Eng
Page 7
INSTALLATION AND BREAK-IN PROCEDURES (Cont.)
EXCESSIVE VIBRATION MAY WEAKEN THE AIR TANK AND CAUSEAN EXPLOSION. THE
OUTFIT MUST BEMOUNTED AS DESCRIBED AND ILLUSTRATED BELOW,
SS- 1525-CD 3/E FLAT WASHER (SUPPLIED ON LEGS AS PART
hole. (It must not be allowed to be lower than 3/8" - 6 threads down -from the top .)When filling the crankcase,
the oil flows very slowly. If the oil is added too quickly,
it will overflow and appear to be full. (Crankcase oil capacity is 16 fluid ounces.) Under winter-type condi- tions use SAE 10W oil. (Multi-viscosity oil - 10W30 - will leave carbon deposits on critical components reducing
performance and compressor life.) Replace oil fill plug.
OF PACKAGING) 1
t._ SCREW
(NOTSUPPUED)
1. The air compressor must be bolted to the floor. Bolting holes are provided in the base feet.
2. Mount the air compressor on a solid level founda-
tion with no strain to the air tank feet. Solid shims
may be used if necessary.
Piping
Plastic or PVC pipe is not designed for use with compressed air. Regardless ofits indicated pres- sure rating, plastic pipe can burst from air pres- sure. Use only metal pipe for air distribution lines.
If a pipe line isnecessary, use pipe that is the same size asthe air tank valve. Piping that is too small will restrict
the flow of air. Ifpiping isover 100 feet long, use the next
larger size. Bury underground lines below the frost line and avoid pockets where condensation can gather and
freeze. Apply pressure before "underground lines are covered to make sure all pipe joints are free of leaks.
Wiring Instructions
IMPROPER GROUNDING CAN RESULT IN ELEC- TRICAL SHOCK. WIRING OF THE PRESSURE
SWITCH, ELECTRIC MOTOR AND MANUAL ON/ OFF SWITCH SHOULD BE DONE BYA LICENSED
ELECTRICIAN IN ACCORDANCE WITH NA- TIONAL AN D LOCAL CODES AND ORDINANCES.
To prevent added current draw and motor overheating
we recommend the use of 12 gauge (AWG) wire, not exceeding a 70 foot length. The wire must be rated at a
minimum temperature of 75° C.
When connecting wires, make sure that: (1)the electrical
box is large enough; (2)service is ofadequate amperage rating; (3)the supply line has the same electrical charac- teristics (voltage, cycles and phase) asthe motor;, (4)the line wire isthe proper size and (5) no other equipment is operated from the same line. Various national and local codes and standards have been set up covering elec- trical apparatus and wiring. These should be consulted
and observed. Our recommended wire sizes may be smaner than the minimum set up by local ordinances. If so, the larger size wire should be used to prevent excessive linevoltage drop. Forwiring instructions, see the diagram inside the pressure switch cover.
p_.._oWALL MOUNTED
JUNCTIONBOX
RDISCONNECT
LIQUIDTITEFLEXIBLE
-:--- : METALCONDUITWITH
Lubrication and Oil
Compressors are shipped without oiL Do not at- tempt to operate this air comprassor without first adding oil to the crankcase.
Place unit on a level surface. Remove oil fill plug and slowly add a special compressor oil such as Sears 9-
16426 or SAE-20-20W SFmotor oil untilitiseven with the
top of the oil fill
_ _._.._ GROUNDLEAD
_; CO.OU,TELBOW
Electrical wiring must be located away from hot
surfaces such as the compressor head, compres- sor cylinder or compressor outlet tube.
7 - Eng
Page 8
Break-In Procedures
Sedous damage may result if the following break*in instructions are not closely followed.
This procedure is required only once; before the air compressor is put into service. Some form of piping or
shut-off valve must be installed before beginning the break-in procedure. A 1/2" NPT shut-off globe valve should be installed at the air compressor tank. Do not
use a ball valve.
1.
Recheck compressor wiring. Make sure wires are secure at allterminal connections. Free all contacts. of loose wire cuttings, etc.
2.
Check oil level in the crankcase before operation. The oil level should be even with the top of the fill
hole and must not be allowed to be lower than 3/8"
(six threads down) from the top at any time. Add oil
if level is low.
OPERATING PROCEDURES
3. Open the shut-offvalve fully, to permit air toescape and to prevent pressure build-up in the air tank.
4. Turn ON the air compressor.
5. Run the air compressor for 30 minutes to seal the rings and lubricate all internal surfaces.
6. Check all air line fittings and connections/piping for air leaks by applying a soap solution. Correct as
necessary. Even minor leaks can cause this air compressor to overwork, resulting in premature
break-down or inadequate performance.
7. Check for excessive vibration and noise. Adjust air compressor belt guard as necessary to eliminate
chatter. Re-adjust or shim the air compressor feet,
if necessary for proper level.
8. Close the shut-off valve and let the air compressor
pump up to cut-out pressure. Turn the aircompres-
sor off and check oil level. Add oil if necessary.
Connect the air hose to the air outlet adapter.
Your compressor is now ready for use.
1. Before attaching an air hose or accessory, make sure the pressure switch OFF/AUTO lever is in the "OFF" position.
2. Attach hose and accessory.
TOO MUCH AIR PRESSURE CAUSES A HAZ- ARDOUS RISK OF BURSTING. CHECK THE MANUFACTURER'S MAXIMUM PRESSURE RATING FOR AIR TOOLS AND ACCESSORIES. THE REGULATOR OUTLET PRESSURE MUST NEVER EXCEED THE MAXIMUM PRESSURE
RATING.
MAINTENANCE
UNIT CYCLES AUTOMATICALLY WHEN POWER IS ON. WHEN DOING MAINTENANCE, YOU MAY BE EXPOSED TO VOLTAGE SOURCES, COMPRESSED AIR OR MOVING PARTS. PERSONAL
INJURIES CAN OCCUR. BEFORE PERF_)RMING MAINTENANCE OR REPAIR, TURN OFF AND LOCK OUT ELECTRIC POWER AND BLEED OFF AIR TANK PRESSURE. NEVER OPERATE THE
COMPRESSOR WITH THE BELT GUARD REMOVED.
Compressed air from the outfit may contain water condensation and oil misL Do not spray unfiltered air at an item that could be damaged. Some air operated tools or devices may require filtered air.
Read the instructions for the air tool or device.
3. Turn the compressor on and allowtank pressure to build. The motor will stop when tank pressure reaches cut-out pressure.
Your outfit is ready for use.
Air Compressor
A clean air compressor runs cooler and provides longer service. Clean or blow off fins and any other parts of the air compressor that collect dust or dirt. Do not place
rags, containers or other material on or against the ventilation openings inthe belt guard. Adequate ventila- tion is necessary to maintain proper air compressor
operating temperature.
Air Filter - Inspection and Replacement
NOTE
Keepthe air filter clean at alltimes. Do notoperatethe compressor with the air flter removed.
8 -- Eng
Page 9
Adirtyair fllterwillnotallowthe compressortooperateat full capacity. Beforeyou usethecompressor, checkthe airfilter
to besure it isclean.
tfitisdirty, mmovethescrewsand filter retainer. Pulloutthe filter,mplacewith new.
Oil - Checking and Changing
5. Apply sealant tothe checkvalve threads.Reinstall the check valve (turn clockwise). The valve stem
should still move freely- do not over tighten.
6. Replacethe outlet tube andtighten top and bottom nuts.
Safety Valve - Inspection
Overfilling with oil will cause premature com- pressor failure. Do not overfill.
Check oil level inthe crankcase daily. The oil level should
beevenwiththetopofthefill hole andmust not,beallowed
tobelowerthan3/8" fromthetop (6threads)at _nytime. It
isrecommendedthatthe oil bechanged afterevery 100hours of operation.Todrainthe oil, removethe oildrain plug and
collecttheoilin asuitable container. Besureto replacethe
plug securelybeforeadding newoil. Useaspecialcompressor oil such asSears9-16426 or SAE-20-20W SFmotor oil.
(Crankcaseoil capacityis 16fluidounces.) Underextreme winterconditionsuse 10weightoil.
Air Tank - Draining Water
WATER WILL CONDENSE IN THE AIR TANK. IF NOT DRAINED, THE WATER WILL CORRODE
AND WEAKEN THE AIR TANK CAUSING A RISK OF AIR TANK RUPTURE.
Watershould be drained from the airtankaftereach use.
Operatethe unittoapply 15-20PSIGandopenthedraincock. Continueoperating unit untilall moisture isremovedfrom
the airtank. Closethe drain cocktightly.
IF THE SAFETY VALVE DOES NOT WORK PROP- ERLY OVER-PRESSURIZATION MAY OCCUR,
CAUSING AIR TANK RUPTURE OR EXPLOSION. OCCASIONALLY PULL THE RING ON THE
SAFETY VALVE TO MAKE SURE THAT THE SAFETY VALVE OPERATES FREELY. IF THE VALVE IS STUCK OR DOES NOT OPERATE
SMOOTHLY, IT MUST BE REPLACED WITH THE SAME TYPE OF VALVE.
Motor
The motor hasathermal overload protector. If the motor
overheatsfor any reason,theovedoad protectorwillshutoff themotor.The motor mustbeallowedtocoeldown before
restarting.De-energizepower supply.To restart,depressthe resetbuttonlocatedontheendofthemotorandenergizethe
powersupply.
NOTE
If the overload protector shuts the motor off
frequently, checkfora possiblevoltage problem.
Low voltage can also be suspected when:
1. the motor does not get up to full power or speed;
2. fuses blow out when the motor is started;
3. lightsdimwhen motor isstartecland remain dim while itis running.
NOTE
If drain cock valve isclogged, release air pressure in air tank. The drain cock valve can then be removed,
cleaned and reinstalled.
Check Valve - Inspection and Replacement
Remove the checkvalve for inspection or r_placement if air tank pressure will not build up. Use the following
procedure to inspect,clean or replace the checkvalve.
1. Releaseair pressure fromthe air tank.
2. Loosen thetop and bottom nuts and removethe outlettube.
3. Unscrewthe checkvalve (turn counterclockwise)
using a7/8" diameter 1/2" socketwrench.
4. Check that the valve discmoves freely inside the
checkvalve and thatthespring holdsthediscin the upper, closed position. The check valve may be
cleaned with a solvent.
Belt - Replacement
SERIOUS INJURY OR DAMAGE MAY OCCUR IF
PARTS OF THE BODY OR LOOSE ITEMS GET CAUGHT IN MOVING PARTS. NEVER OPERATE
THE COMPRESSOR WITH THE BELT GUARD REMOVED. THE BELT GUARD SHOULD BE RE- MOVED ONLY WHEN THE POWER TOTHE COM- PRESSOR IS DISCONNECTED.
The motor ismounted on an adjustable motor base. To replace belt:
1. Turnoffand lockout powersource.
2. Remove screwsfrom the backofthe belt guard.
3. Loosenthe four motor mounting screws.
4. Slidethe motor toward the compressorpump.
5. Remove belt and replace.
g -- Eng
Page 10
NOTE
The belt should be centered over the grooves on the
flywheel and motor pulley.
6. Push the motor back into regular position and tighten bolts securely. Proper tension is approxi-
mately 1/4" belt deflection measured midway be-
tween the pulley and flywheel when a 3 pound weight or equivalent finger pressure is applied at this point. A loose belt will squeal at compressor start-up.
7. Replace beltguardand screws.
TROUBLESHOOTING GUIDE
UNIT CYCLES AUTOMATICALLY WHEN POWER IS ()N. WHEN DOING MAINTENANCE, YOU MAY BE EXPOSED TO VOLTAGE SOURCES, COM PRESSED AIR OR MOVING PARTS. PERSONAL INJURIES CAN
OCCUR. BEFORE PERFORMING MAINTENANCE OR REPAIR, TURN OFF AND LOCK OUT ELECTRIC
POWER AND BLEED OFF AIR TAN K PRESSURE. NEVER OPERATE TH ECOMPRESSOR WITH THE BELT GUARD REMOVED.
Pulley and Flywheel - Alignment
The compressor flywheel and motor pulley must be inline (in the same plane) within 1/16" to assure belt
retention within sheave grooves. The motor mounting holes on the saddle are skewed to square the motor with the compressor mounting hole as the belt is tensioned. To check alignment, disconnect electrical power and
remove the belt guard. Place a straightedge against the
outside of the flywheel and measure the distance from
it to the nearest groove. Alignment is achieved when the
other end of the straightedge is within 1/16" of the
measured dimension at the pulley grooves. Squareness is achieved when the pulley grooves are an equal distance from the straightedge on both sides of the
motor shaft.
PROBLEM CAUSE CORRECTION
Excessivetankpressure-safety Pressure switch does not shut off motor Pressureswitchmustbereplaced.
valve pops off. when compressor reaches "cut-out" pres-
sure.
Air leaks at fittings or hose. Tube or hose fittings are not tight enough.
Air leaks at check valve.
Defective or dirty check valve.
Tighten fittings where air can be heard escaping.
Check fittings under soapy water solution. DO NOT OVER-TIGHTEN.
Removeand clean or replace check valve. DO NOT
OVER-TIGHTEN.
Air leaks at pressure switch re-
leasevelve.
Air leaks at air tank welds.
Air leak from safety valve. Possible defect in safety valve.
Defective pressure switch release valve.
Defective air tank.
Restricted check valve. * Loose pulley.
Low oil level.
Loose flywheel.
Loose compressor bolts.
Loose belt.
Carbon build-up.
Remove and replace the release valve.
Air tank must be replaced.
DO NOT DRILL INTO, WELD OR OTHER- WISE MODIFY AIR TANK. IT WILL BE
WEAKENED.
Operate safety valve manually be pulling on dng. If valve stillleaks, it should be replaced.
: Remove and clean or replace.
Tighten pulley set screw.
Maintain prescribed oil level
Tighten screw.
Check bolts. Tighten as required.
Tighten belt as per instructions under Belt Replace-
merit above.
Remove the head and valve plate. Clean the velve plate and thetop of the piston. (Be surecarbon does notfall intothe cylinder.) Reassemble to 25-30 ft.lbs. using new gasket and torque screws.
10- Eng
Page 11
TROUBLESHOOTING GUIDE (Cont'd.)
PROBLEM Motor will not run.
CAUSE
Motor overload protection switch has tripped.
Tank pressure exceeds pressure switch "cut- in" pressure.
Check valve stuck - fails to relieve head pres- sure; motor cannot start.
Loose electrical connections.
Posstble defective capacitor.
Possible defective motdr. Fuse blown, circuit breaker tdpped.
, CORRECTION
Let the motor cool off and reset switch by pressing
the red button located on the end of the motor. Motor will start automatically when tank pressure
drops below "cut-in" pressure of pressure switch.
Remove and clean or replace. (Do not overtighten.)
Check wiring connection inside pressure switch and terminal box area.
Returnto Sears Service Center for inspection or replacementifnecessary.
Have checked at a local Sears Service Center.
1. Check fuse box for blown fuse and replace if
necessary. Re-set circuit breaker• Do not use a fuse or circuit breaker with higher rating than
that specified for your particular branch circuit.
2. Check for proper fuse; only "Fusetron" Type T fuses are acceptable•
3. Check for low voltage conditions.
4. Remove check valve and clean or replace ifit is stuck open or closed.
5. Disconnect the other electrical appliances from circuit or operate the compressor on its own
branch circuit.
Restricted air intake. Compressor is not supply-
ing enough air to operate accessories.
Excessive belt wear.
Squealing sound.
Pressure release valve on pressure switch has not unloaded head pressure.
Dirty air filter. Prolonged excessive use of air.
Compressor is not large enough for air re- quirement.
Restricted air intake filter.
Loose belt•
Hole in hose.
Check valve restricted. Air leaks•
Loose belt.
Tight belt.
Loose pulley.
Loose belt. There is no oil in the compressor.
Bleed the line by pushing the lever on the pressure
switch to the "OFF" position, opening the pressure
releasevalve. Ifthe valve stilldoesn't open, itmust be replaced.
Replace with new. Decrease amount of air usage.
Check the accessory air requirement. If it is higher than the pressure supplied by your air compressor,
rou need alarger compressor.
Replace air intake filter. Adjust belt tension.
Check and replace if required.
Remove and clean or replace.
Tighten fittings. (See Air Leaks Section of Trouble- shooting Guide.)
Adjust tension. Adjust tension.
Check forworn keyway orpulleybore. Alsocheck for bent motor shaft. Replace parts ifnecessary.
Adjust belt tension.
Add oil.
11 -- Eng
Page 12
?
AIR COMPRESSOR DIAGRAM
11 12
10 _ 13
15
6
42
35
26
79
\
\\
\\
34
31
27
12 -- Eng
Page 13
KEY
NO. PART NUMBER
1 SSF-953-ZN 2 CAC-22-2 3 SSF-8113-ZN 4 CAC-2-1
5 CAC-362-1 6 SSP-9401 7 SSP-7812 8 SSP-7811
9 SS-8553 10 C-BT-224 11 SS-391 12 C-PU-2861
13 SUDL-65 14 CAC-4205
15 MO-3022-1
16 CAC-1331 17 SSF-928
19 CAC-4336 20 SS-3222-CD
21 CAC-95 22 TIA-4150
23 GA-360
24 39124607 25 SSV-6 26 SS-1525-CD 27 LA-3294 29 SSF-8150 30 CL-1263
31 LA-3266 32 "LA-3105 34 SS-2707 35 TA-4438 36 SSW-7367 37 SS-2110
38 CAC-437-2 39 AC-0720
40 SSF-3152 41 LA-3108
42 AC-0722
PARTS LIST
DESCRIPTION
Self Tapping Screw 10 x 5/8 (6 used)
Belt Guard Lock Nut Bracket
Belt Guard Closure Connector Body
Nut-Sleeve Assembly 1/2" (2 used) Nut Sleeve Assembly 1/4"
Connector Body Poly-V Belt
Set Screw
MotorPulley Key, Motor Shaft Motor Cord Assembly
Motor 6.5 HP Pressure Release Tube
Cap Screw 5/16"-18-1" (4 used)
Pressure Switch Pipe Plug
Manifold Safety Valve
Gauge Screw (2 used)
Globe Valve isolator Washer (4used)
Performance Label Locking Flange Nut (4used)
Specification Label Warning Label
Craftsman Label Drain Valve
Air Receiver - 60 gal. Strain Relief
Nipple Check Valve OutletTube
Locking Cap Screw (4 used) Warning - Hot Surface Label (2 used)
Compressor Pump Assembly (includes Key No. 43 thru 78, inclusive)
13 -- Eng
Page 14
COMPRESSOR PUMP DIAGRAM
i,,,/4445
80
74
76
72
69
6O
_56 O_,.-.- 57
q_'_ ..--- 58
62
I
,67
14 --Eng
=,..I. 66 (oil fill plug)
I
66 (oil drainplug)
Page 15
PARTS LIST
KEY
NO, PART NUMBER DESCRIPTION
43 SSF-6627 44 SSF-935
45 AC-0322
* 46 AC-0333
47 SSF-955 48 CAC-4213
* 49 CAC-291-1
50 265-25
51 SSF-9821 52 CAC-294
53 265-196-1
54 CAC-4212-1 55 CAC-54-2
÷
56 CAC-56-1 57 CAC-58
÷ ÷
58 CAC-57 59 CAC-55-1 60 265-19
61 CAC-207 62 265-410 63 SSF-927 64 AC-0205 65 SST-104 66 SSP-486 67 SSP-505 68 DAC-276
69 265.-16-1 70 AC-0203
71 SSF-925 72 SSN-1018 74 265-2
75 SSN-1014-ZN
76 SSF-3039-ZN
77 AC-0169 78 265-6
79 LA-1923 80 AC-0330
Stud 3/8" - 16 Taptite (1 used - Torque 25 to 30 ft. Ibe.) Screw #8-32 x 3/8" (2 used)
Filter Plate Assembly Felt Filter
Screw 3/8"-16 x 1-1/2" (5 used - Torque 25 to 30 ft. Ibs.)
Head Assembly (includes 2 ea. Key #50 & 4 ea. Key #51) Head Gasket
Intake Flapper Valve (2 used on,head)
Screw, THD Forming 5-40xl/4 (8 used) Restrictor Plate (2 used) Flapper Val_e with Corner Bevels
(2 used on valve plate) Valve Plate Assembly (includes 4 ea. Key #51 & 2 ea. Key #52 & 53)
Valve Plate Gasket Compression Ring (4 used)
Oil Ring (4 used) Oil Ring Expander (2 used)
Piston (2 used) Piston Pin (2 used)
Piston Pin Plug (4 used) Connecting Rod Assembly (2 used Includes two SSF-927 screws)
Screw 1/4"-20 x 1-1/8" (2 used) Crankcase and Cylinder
Ball Bearing (2used)
Pipe Plug, 3/8-18" NPT (2 used)
Oil Plug
Base Base Gasket
Crankshaft
Screw 1/4 - 20 x 7/8" (8 used)
Wavy Spring Washer
Flywheel Washer
Screw Oil Seal
Vent Filter Drain Tank Label Solberg Filter
NOTSHOWN
AC-0331
MGP-184160
Parts Ordering Information
+ Key No. 56, 57, 58 only available in Ring Kit KK-4313.
Key No. 19, pressure release valve and nut is available as part of Kit KK-5020.
Key No. 50, 51 and 53 only available inValve Kit KK-4275.
* Key No. 46, 49, 55, 67, 69, 77, and 78 are available in Gasket Kit K-0159.
Solberg Filter Replacement Owners Manual
15 -- Eng
Page 16
SEARS
OWNERS
MANUAL
I:RRFTSMAK
SINGLE STAGE
AIR COMPRESSOR
For the repair or replacement parts you need
MODEL NO.
919.184160
When requesting service or ordering
3arts, always provide the following
information:
Model Number
Part Number
Part Description
Name of Item
FULL ONE YEAR WARRANTY
AIR COMPRESSOR
Call 7 am - 7 pro, 7 days a week
1-800-366-PART
(1-800-366-7278)
For in-home major brand repair service
Call 24 hours a day, 7 days a week
1-800-4-REPAIR
(1-800-473-7247)
For the location of a
Sears Parts and Repair Center in your:_ I
Call 24 hours a day, 7 days a wee
1-800-488-1222
Ifthis air compressor fails due to a defect in
material or workmanship within one year from the date of purchase, RETURN IT TO
THE NEAREST SEARS REPAIR CENTER THROUGHOUT THE UNITED STATES
AND SEARS WILL REPAIR IT, FREE OF CHARGE. IF PURCHASED FROM OR-
CHARD SUPPLY HARDWARE, RETURN TO THE NEAREST ORCHARD STORE
AND ORCHARD WILL REPAIR IT, FREE OF CHARGE.
Ifthis air compressor isused for commercial or rental purposes, the warranty will apply for ninety days from the date of purchase.
This warranty gives you specific legal rights
and you may have other rights which vary
from state to state.
For information on purchasing a Sears
A
Maintenance Agreement orto inquire
about an existing Agreement
call 9 am - 5 pm, Monday-Saturday
1-800-827-6655
Atnerk_'s Re_p_,f ,Spec_ml._s_s
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
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