SchraderAir SA315240H346 Operating instructions

Compressor Operating and
Maintenance Manual
TWO STAGE 15 HP PUMP
MODEL: _________________________
SERIAL #_________________________

9. Drain tank daily to prevent rust formation in the
tank.
10. Never reset pressure switch or safety valves.
11. Never store flammable liquids or gases in the
vicinity of the compressor or compressor
starting equipment.
12. SHUTOFF VALVES ARE NOT TO BE INSTALLED
IN THE DISCHARGE LINE BETWEEN THE
COMPRESSOR AND THE RECEIVER UNLESS A
SAFETY VALVE, WITH ADEQUATE FLOW
CAPACITY AND PRESSURE SETTING, IS
LOCATED BETWEEN SHUTOFF VALVE AND THE
COMPRESSOR.
13. When compressor is used for spraying:
Do not spray in vicinity of open flame or other
surfaces of ignition.
14. Do not smoke when spraying paint, insecticides,
or other toxic or flammable substances.
15. To avoid spontaneous combustion, discard waste
rags into approved metal waste cans.
16. Do not spray in confined spaces.
17. Use face mask when spraying.
18. Always direct paint or sprayed material away
from compressor and locate compressor to
minimize paint overspray accumulation on
compressor or sprayer parts.
19. When using cleaning solvent, follow the
instructions provided by the solvent manufacturer.
SAFETY INSTRUCTIONS
When using air compressors and compressed air
accessories, basic safety rules and precautions should
always be followed including the following:
1. Read all instructions fully.
2. Wiring, starters, breakers and other related
electrical equipment should conform to
electrical codes.
3. Shut off main power and release all pressure
from the unit and set pressure regulator to zero
pressure before removing or adding parts or
attachments and before cleaning compressor.
4. Do not operate any compressor with damaged
wiring. Do not operate after the compressor or
air handling parts have been dropped, damaged,
or shows signs of deterioration, weakness or
leakage. Do not use them if any deficiency is
found. Withdraw from service and repair or
discard such parts.
5. Regularly inspect hose and load handling
fittings for signs of damage, deterioration,
weakness or leakage. Do not use them if
deficiency is found. Withdraw from service and
repair or discard such parts.
6. Never use air pressurized accessories or parts
in the air system not suitable for the maximum
air pressure involved. This is dangerous. Be
sure maximum pressure specified by the manu-
facturer is well above the working pressure of
your compressor.
7. Keep clear of compressor. It will become
extremely hot. Moving parts should be avoided.
Do not operate without belt guard.
8. Keep pressure relief devices free from paint or
other accumulation.

DIRECTION OF ROTATION
As the compressor starts, check the rotation of the
units, Standard rotation is clockwise, viewing the
compressor from the side of the sight glass. A rota-
tion arrow, is placed on the flywheel at the factory.
Should the rotation be incorrect, disengage the power
and correct the motor wiring.
WARNING: AFTER THE COMPRESSOR IS STARTED,
IT WILL OPERATE AUTOMATICALLY.
START-STOP (PRESSURE SWITCH CONTROL)
When the air pressure in the receiver reaches the
preset high pressure level the pressure switch opens,
electrically stopping the compressor driver motor. As
the air is used from the receiver the pressure drops
allowing the pressure switch to close at the preset
low pressure level, restarting the driver motor.
UNPACKING INSTRUCTIONS
The two stage compressor was inspected at the fac-
tory and packaged to protect against shipping dam-
age. When you unpack your unit, inspect for damaged
or missing parts. If there is any damaged or missing
part, the transportation company’s agent should make
a notation to the effect on the Bill of Lading. Claims,
should be settled directly with
the transportation company.
INSTALLATION
The compressor must be placed in a clean and well-
ventilated room. Compressor should be located
at least 12 to 18 inches away from a wall or other
obstruction that will impede the flow of air through
the fan-bladed flywheel. Rotation of the fly-wheel
must be in the direction of the arrow cast into the
flywheel.
The compressor should be as near a possible to air
outlets to avoid long pipe lines. Do not place com-
pressor where heat is excessive. Provide adequate
fresh air and exhaust ventilation from area in which
the compressor is located.
Place compressor on a firm, level floor. Permanent
installations should be bolted to the floor. Bolting
holes are provided in the base feet. Shim compressor
level before bolting down to floor. Avoid putting stress
on a foot by pulling it down to floor. This may cause
abnormal vibration. Remove wood shipping skid
before installation.
INSTALLATION AND OPERATING INSTRUCTIONS
LUBRICATION OF COMPRESSOR
This compressor was shipped without oil. Before operating, fill crankcase with oil to level on oil sight gauge. Do
not over fill. Oil recommended: Premium Grade SchraderAir 826020 - 30WT Non-Detergent. Change oil every
three (3) months or 500 hours. After initial start up change oil after first two weeks of operation. If oil turns
milky replace oil and move unit to less humid conditions.
PRESSURE SWITCH ADJUSTMENT & UNLOADER
The pressure switch has a range adjustment and a differential adjustment. See instructions located under pres-
sure switch cover. The Cut-Out (Compressor Shutdown) is the pressure at which the contacts open, and the Cut-
In (Compressor Restart) is the pressure at which the switch contacts close.
Pressure switch controls the opening and closing of the contacts in the magnetic starter. Do not wire electric
motor directly to pressure switch.
The pressure switch has an unloader or bleeder valve which unloads compression from the compressor for a
loadless start-up. Each time the compressor cuts off air should be released to atmosphere from the bleeder
valve. Air will disperse from this valve for only a few seconds, then stop. (Check Daily)
AIR INLET FILTER/SILENCER
It is very important that the air inlet filter/silencer be kept clean at all times. A dirty inlet filter reduces the
capacity of the compressor.
3

WIRING DIAGRAM
Installation Should Be Made By a Competent Electrician
L2, L3 indicates supply line terminals. T1, T2, T3 indicates load.
Motor
Line
3
Phase
Motor
T
3
T
2
T
1
K2
L1 L2 L3
C2
C1 C3
Jumper
C1 - Blue & Orange
C2 -
C3 - Black & Red
4

MAINTENANCE
MONTHLY
• Check operation of high pressure safety valve
by pulling ring.
• Check flywheel and motor pulley for tightness.
QUARTERLY
• Every 90 days also check entire system for air
leakage around fittings, etc. using a soap solu-
tion. Tighten nuts and cap screws as required.
• Every 90 days or 1,000 operating hours,
whichever comes first, change crankcase oil.
Oil recommended: Premium Grade SchraderAir
826020 - 30WT Non-Detergent. Change oil more
frequently, if compressor is located in very dirty
environment.
DAILY
• Check compressor visually.
• Check oil level and add oil as required.
• Drain moisture from system piping.
• Drain moisture from tank daily to prevent rust.
WEEKLY
• Turn power off and drain moisture from tank
by opening drain cock in bottom of tank.
• Remove and clean intake air filters.
Disassemble and wash element in detergent
solution. Do not oil.
• Check V-belts for tightness. Belt tension should
be adjusted to allow approximately 1/4 - 1/2
inch deflection with normal thumb pressure.
• Turn power off and clean dust and foreign
material from cylinder head, motor, fan blade,
air lines, intercooler and tank.
MAINTENANCE SCHEDULE - CHECK CHART
PROCEDURE DAILY WEEKLY MONTHLY YEARLY
Check Oil Level. Caution! Do not overfill. X
Give Compressor overall visual check X
Drain moisture accumulation from X
the air receiver
Check the air distribution system for air leaks X
Clean cooling surfaces of compressor, X
intercooler and aftercooler
Operate safety valves (pressure relief valve) X
Replace or clean intake filter element X
Inspect oil for contamination and change if X
necessary
Check belts for correct tension and alignment X
Check pulley clamp bolts and set screws for X
tightness
Inspect valve assemblies XX
Inspect cushion chamber, if so equipped, X
and discharge line for excessive carbon
accumulations
Inspect pressure switch diaphragm and X
contact points
Service electric motor ‡ ‡ ‡ ‡
Drain Tank X
X= Check more often if extremely dirty condition exists. XX = Every 6 months
‡ = Per manufacturer’s recommendations 5

TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
1. Compressor will not operate. 1. No electrical power. 1. Turn on power.
2. Pressure switch not making contact 2. See pressure switch adjustment.
2. Excessive noise in operation 1. Loose pulley, flywheel, belt, beltguard, 1. Tighten.
cooler, clamps or accessories.
2. Lack of oil in crankcase. 2. Check for possible damage to
bearings, replenish oil.
3. Piston hitting the valve plate. 3. Remove the compressor cylinder
head and inspect for foreign
matter on top of the piston.
Add a new gasket and reassemble
the head.
4. Compressor floor mounting loose. 4. Tighten.
5. Defective crankcase. 5. Repair or replace.
6. Excessive crankshaft end play. 6. Adjust and shim properly.
3. Knock - same cycle as R.P.M. 1. Main bearings. 1. Replace bearings.
2. Connecting rod bearing. 2. TIghten.
4. Knock occurs while 1. Connecting rod bearings. 1. Replace rod.
compressor is loading. 2. Wrist pins, wrist pin bearings. 2. Replace complete piston
assembly.
5. Milky oil in oil reservoir. 1. Water entering oil reservoir due 1. Pipe air intake to less humid air\
to compressor operating in high source.
humidity environment.
6. Excessive oil consumption. 1. Restricted air intake. 1. Clean or replace air filter.
2. Oil leaks. 2. Tighten bolts or replace gasket.
3. Worn piston rings. 3. Replace piston rings.
4. Wrong oil viscosity. 4. Drain oil, refill with oil or proper
viscosity. See Lubrication Section.
5. Compressor titled too much. 5. Level compressor.
6. Scored cylinder. 6. Replace cylinder.
7. Oil in discharge air. 1. Compressor air intake restricted. 1. Clean air filter element and check
for other restrictions in the intake
system.
2. Worn piston rings. 2. Replace rings.
3. Excessive oil in compressor. 3. Drain down to full mark on sight
gauge.
4. Wrong oil viscosity. 4. Check viscosity. See Lubrication
Section.
5. Piston rings installed up-side down. 5. Install ring in proper position.
8. Compressor vibrates. 1. Mounting bolts loose. 1. Tighten.
2. Compressor not properly mounted. 2. Level compressor so that all feet
touch the floor before tightening
down.
3. Pulley and flywheel misaligned. 3. Realign.
4. Belts loose. 4. Tighten belts. See Maintenance
Section.
5. Bent crankshaft. 5. Replace crankshaft.
6

TROUBLESHOOTING (continued)
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
9. Air blowing our of inlet 1. Broken first stage inlet valve. 1. Replace valve assembly.
10. Insufficient pressure at point of use. 1. Leaks or restriction. 1. Check for leaks, restriction, or
piping. Repair problem.
2. Restricted air intake. 2. Clean or replace air filter
element.
3. Slipping belts. 3. Tighten belts. See Maintenance
Section.
4. Service hose too small. 4. Replace with larger hose.
5. Excessive air requirement. 5. Limit air requirement to
compressor capacity.
11. Receiver does not hold pressure 1. Faulty check valve. 1. Bleed Tank! Disassemble check
when compressor is unloaded. valve assembly, clean or
replace faulty parts. DANGER -
DO NOT DISASSEMBLE CHECK
VALVE WITH AIR IN TANK.
NOTE - CHECK VALVE IS
ALWAYS THE FIRST VALVE IN
THE LINE LEADING FROM THE
TANK TO THE COMPRESSOR.
12. Excessive belt wear. 1. Pulley out of alignment. 1. Realign motor pulley with
compressor flywheel.
2. Belts too tight. 2. Adjust tension. See Maintenance
Section.
3. Belts too loose. 3. Adjust tension. See Maintenance
Section.
4. Pulley or flywheel wobble. 4. Check for worn crankshaft,
keyway or pulley bore, resulting
from running with loose pulleys.
Check for bent crankshaft.
5. Nick in belt grove of pulley or 5. File smooth.
flywheel.
13. Excessive discharge air 1. Dirty cooling surfaces. 1. Clean cooling surfaces of cylinder,
temperature. intercooler and discharge tube.
2. Poor ventilation. 2. Improve ventilation or relocate
compressor. See Installation.
3. Blown head gasket. 3. Replace head gasket.
4. Restricted air intake 4. Clean or replace air filter element.
5. Worn valves. 5. Repair or replace valves.
14. Receiver pressure builds 1. Dirty air filter. 1. Clean or replace filter element.
up slowly. 2. Blown cylinder head gasket. 2. Install new gasket.
3. Worn or broken low pressure 3. Install new head gasket.
intake or discharge valves.
4. Air leaks. 4. Tighten joints.
5. Loose belts. 5. Tighten belts. See Maintenance
Section.
6. Speed too slow. 6. Check speed.
7

823015 Two-Stage
Compressor Pump
8

823015TX - PUMP PARTS
ITEM PART # DESCRIPTION QTY ITEM PART # DESCRIPTION QTY
1430001 Crankcase GS43 144 431030-1 HP Wrist Pin - Piston GS43 1
2430002 Cap-Rear GS43 145 431031 Snap Ring - Internal  30 4
3430003 Crankshaft GS43 145-1 431031-1 Snap Ring - Internal  28 2
4430004 Balance GS43 246 431032 Piston Ring Set GS43 2
5430005 Cap - Front GS43 147 431032-1 HP Piston Ring Set GS43 1
6430006 Flywheel GS43 148 431033 Gasket - Cylincer to Crankcase GS43 3 (*a)
7430007 Fan GS43 149 431034 Capscrew - Hex M12X335 24
8430008 Cylinder GS43 250 431035 Gasket - Cylinder Head GS43 2 (*a)
9430009 Head GS43 251 431035-1 Gasket - Cylinder Head GS33 1 (*a)
10 430008-1 HP Cylinder G43 152 431036 Valve Copper Gasket GS43 4
11 430009-1 Head GS43 153 431037 Disch Valve GS43 2
12 431001 Capscrew - HEX M10X30 26 54 431038 "O" Ring - Hold Down Cover GS43 4
13 431002 Lock Washer Φ10 35 55 431039 Hold Down Cover - Disch GS43 2
14 431003 Breather - Crankcase GS43 156 431040 Inlet Valve GS43 2
15 431005 Oil Baffle Plate GS43 157 431041 Unloader Piston GS43 2
16 431005 Gasket - Rear Cap GS43 1 (*a) 58 431042 "O" Ring - Unloader Piston GS43 2
17 431006 Oil Sight Glass GS43 159 431043 Hold Down Cover - Inlet GS43 2
18 431007 Oil Drain Plug GS22 160 431044 Capscrew - Hex M10X80 6
19 431008 Bearing - Front 32210 161 431036-1 Valve Copper Gasket GS33 2
20 431009 Capscrew - HEX M16X20 262 431037-1 HP Disch Valve G43 1
21 431010 Lock Washer Φ16 263 431038-1 "O" Ring - Hold Down cover GS33 2
22 431011 Bearing Rear 30310 164 431039-1 Hold-Down Cover-Disch GS33 1
23 431012 Gasket - Front Cap GS43 1 (*a) 65 431040-1 HP Inlet Valve G43 1
24 431013 Shim-Brg Adjustment GS43 166 431041-1 Unloader Piston G33 1
25 431014 Seal - Shaft GS43 167 431042-1 "O" Ring-Unloader Pisotn GS33 1
26 431015 Spacer - Flywheel GS43 168 431043-1 Hold Down Cover - Inlet GS331 1
27 431016 Key - Flywheel 169 431045 Capscrew - Hex M8X25 8
28 431017 Capscrew - Hex M12X40 170 431046 Copper Elbow GS43 1
29 431018 Lock Washer Φ12 25 71 431047 Copper Nut GS12 5
30 431019 Capscrew - Hex M8X30 672 431048 Copper Seal Ring GS43 5
31 431020 Lock Washer Φ 8 17 73 431049 Aluminum Tube Φ6 GS43 2
32 431021 Filter - Inlet Assembley GS43 274 431050 Tee-Male Tube GS12 2
33 431022 Filter - Replacement Element GS43 275 431051 Nut- Compression GS43 1
34 431023 Oil - Plug GS43 1 76 431052 Elbow GS43 3
35 431024-1 HP Connecting Rod GS43 1 77 431053 Tee GS43 1
36 431024 Connecting Rod GS43 2 78 431054 Intercooler Tube GS43 1
37 431025 Insert Half GS43 3 79 431055 Intercooler Tube GS43 1
38 431026 Nut M8 3 80 431056 Capscrew-Hex M10X20 1
39 431027 Straight Dipper - Oil GS43 1 81 431057 Cooler Line Strap G43 1
40 431028 Oblique Dipper - Oil GS43 2
41 431029 Piston GS43 2
42 431029-1 HP Piston GS43 1
43 431030 Wrist Pin - Piston GS43 2*a 430000-1 COMPLETE GASKET KIT GS43 1
#63 VITON HIGH TEMP O-RING = 55 X 3 PART# 93602-870055 need 2
#54 O-Ring - 93602-810065 - need - 4
9

10

(SINO-USA)
DAFENG LIDA COMPRESSED AIR SYSTEMS CO.,LTD
MODEL G43 Two Stage Air Compressor Pump
823015 Technical Data
Motor
HP 15
KW 11
Air Delivered
ACFM 43.1
m3/min 1.22
Pressure
PSI 172
Bar 12
Rpm 860
Cylinders 120X2，100X1
Bore
inch 4.72(3.94)
mm 120(100)
Stroke
inch 3.15
mm 80
Flywheel dia. inch 13.78
mm 350
Groove Type B
Dimensions
A
inch 15.59
mm 396
B
inch 8.98
mm 228
C
inch 6.85
mm 174
L（Shape) inch 31.10
mm 790
W（Shape) inch 22.05
mm 560
H（Shape) inch 25.59
mm 650
Weight lb 335.16
kg 152
(SINO-USA)
DAFENG LIDA COMPRESSED AIR SYSTEMS CO.,LTD
MODEL G43 Two Stage Air Compressor Pump
823015 Technical Data
Motor
HP 15
KW 11
Air Delivered
ACFM 43.1
m3/min 1.22
Pressure
PSI 172
Bar 12
Rpm 860
Cylinders 120X2，100X1
Bore
inch 4.72(3.94)
mm 120(100)
Stroke
inch 3.15
mm 80
Flywheel dia. inch 13.78
mm 350
Groove Type B
Dimensions
A
inch 15.59
mm 396
B
inch 8.98
mm 228
C
inch 6.85
mm 174
L（Shape) inch 31.10
mm 790
W（Shape) inch 22.05
mm 560
H（Shape) inch 25.59
mm 650
Weight lb 335.16
kg 152
823015 Two-Stage
Compressor Pump
11

Air file 4.0*
Air filter cleaner 70-100 3.6*
Air motors
1 HP 7.0
2 HP 13.0
3 HP 19.0
Air polisher 16.0
Blow gun 90-100 2.4
Brake tester 70-100 3.6
Caulking gun 10-70 2.2
Circular saw 17.0
Die grinder 6.0
Drill, 3/8 inch 70-90 4.0*
Engine cleaner 90-100 5.0
Fender hammer 70-100 9.0*
Filing machine 90-100 5.0*
Grease gun 120-150 6.0*
Hydraulic lift 6.0-12.0*
Impact wrench
3/8 inch 70-90 3.0*
1/2 inch 70-90 4.0*
5/8 inch 70-90 5.0*
3/4 inch 70-90 8.0*
1 inch 70-90 12.0*
Air hammer 90-100 7.0*
Orbital sander 70-100 12.0*
Panel cutter 70-100 4.0
Nail hammer 90-100 4.0
Rim stripper 125-150 5.0
Spark plug cleaner 90-100 5.0
Air scaler 5.0
Spray gun
Production 90-100 16.0*
Touchup 90-100 8.0*
Undercoating 90-100 19.0*
Tire bead breaker 125-150 12.0*
Tire changer 125-150 1.0
Tire hammer 90-100 12.0
Tire inflation line 125-150 1.4
Tire spreader 125-150 1.0
Transmission flusher 70-100 3.0
Carbon remover 70-100 3.0*
Burring tool 90-100 5.0*
Vacuum cleaner 125-150 6.0
Hydraulic floor jack 125-150 6.0
Radiator tester 90-100 1.1
Air saw 6.0
Vertical air sanders
5” 12.0
7” 16.0
9” 18.0
Vertical grinder
3” 6.0
4” 12.0
7” 24.0
Consult the spec. supplied with your air tool or
equipment for the exact operating pressure and
air volume requirements.
*Continuous Run Tools
AIR CONSUMPTION CHART
PSI SCFM PSI SCFM
12

For (1) one year from the date of purchase, Schrader Inter-
national Inc. will replace or repair for the original purchaser
free of charge, any part or parts found upon examination
by manufacturer/any Authorized Service Center to be
defective in material or workmanship
or both. This warranty shall not be effective unless the
warranty registration certificate is completely filled out
and returned to Schrader International Inc. within thirty
(30) days from the delivery of the equipment to the original
end-user.
All transportation charges for parts submied for replace-
ment under this warranty must be borne by the purchaser.
There is no other express warranty. Implied warranties,
including those of merchantability and fitness for a
particular purpose are limited to one year from the date
of purchase and to the extent permied by law, any and
all implied warranties are excluded. This is the exclusive
remedy, and liability for consequential damages under any
and all warranties are excluded to the extent exclusion is
permied by law.
All claims pertaining to the merchandise in this schedule
must be filed with Schrader International Inc. within 12
months of the invoice date, and a registration card is on
file with Schrader, or they will not be honored. Prices,
discount, and terms are subject to change without notice
or as stipulated in specific product quotations. All agree-
ments are contingent upon strikes, accidents, and other
causes beyond our control. All shipments are carefully
inspected and counted before leaving the factory. Please
inspect carefully any receipt of merchandise, noting any
discrepancy or damage on the carrier’s freight bill at time
of delivery. Discrepancies or damage, including hidden or
obvious that occurred in transit are the carrier’s responsi-
bility and related claims should be made by the customer
directly with the carrier.
To locate the closest Authorized Service Center for service
assistance, resolution of a service problem or for product
information and operation, call or write to:
Schrader International Inc.
205 Frazier Road
Altavista, VA 24517
Email: [e-mail]
1.800.288.1804
Tech Service, ext. 1577
What is not covered under this warranty:
• Electric motors or gasoline engines are covered by the
Original Manufacturer’s Warranty and should be returned
(by the customer) to their authorized service center for
service.
• Consumer compressors used in commercial, industrial or
rental purposes will be covered by warranty for (90)
ninety days from date of purchase only.
• Any failure that results from an accident, purchaser’s
abuse, neglect or failure to operate products in
accordance with instructions provided in the owner’s
manual(s) supplied with compressor.
• Pump or valve failure caused by rain, excessive humidity,
corrosive environments or other contaminants.
• Cosmetic defects that do not interfere with the
compressor’s functionality.
• Damage due to incorrect voltage or improper wiring.
• Pump wear or valve damage caused by any oil
contamination or by failure to follow proper oil
maintenance guidelines.
• This warranty is invalid if the factory-applied serial
number has been altered or removed from the product,
or an electric compressor has been used in conjunction
with a generator.
• Freight damage
Schrader International Inc.
Warranty Statement
13

Schrader International, Inc.
P.O. Box 668 • 205 Frazier Road
Altavista, Virginia 24517
CUSTOMER SERVICE • SALES
1-800-327-1335
TECHNICAL SERVICE • PARTS
1-800-345-0578
823015 Manual 011112