Gast R2303A Troubleshooting guide

STANDARD REGENAIR BLOWER
OPERATION & MAINTENANCE MANUAL
Thank you for purchasing this Gast product. It is manufactured to the highest standards
using quality materials. Please follow all recommended maintenance, operational
and safety instructions and you will receive years of trouble free service.
General information
This manual does not apply to:
• SDR Series blowers without motors
• Blowers powered with Explosion Proof Motors
PART NO. 70 - 6000 F2-200 (REV-J)
Model R1 Shown Model R6P350A S h o w n Model R7P S h o w n
Product Use Criteria:
• Pump only clean, dry air.
• Operate at -20ºF - 104ºF (-29ºC - 40ºC).
• Protect unit from dirt & moisture.
• Do not pump flammable or explosive gases or
use in an atmosphere that contains such gases.
• Protect all surrounding items from exhaust air. This
exhaust air can become very hot.
• Corrosive gases and particulate material will
damage unit. Water vapor, oil-based contaminants
or other liquids must be filtered out.
•The blower must be installed with the properly sized inlet and inline filters, gauges and
relief valves to protect the product from dirt and over-heating.
• Consult your Gast Distributor/Representative
before using at high altitudes.
1
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Your safety and the safety of others
is extremely important.
We have provided many important safety messages
in this manual and on your product. Always read
and obey all safety messages.
This is the safety alert symbol. This symbol
alerts you to hazards that can kill or hurt you and
others. The safety alert symbol and the words
“DANGER” and “WARNING” will precede all safety
messages. These words mean:
You will be killed or seriously injured if you don’t
follow instructions.
You can be killed or seriously injured if you don’t
follow instructions.
All safety messages will identify the hazard, tell you
how to reduce the chance of injury, and tell you
what can happen if the safety instructions are not
followed.
Correct installation is your responsibility.Make sure
you have the proper installation conditions and that
installation clearances do not block air flow.
Blocking air flow over the product in any way can
cause the product to overheat.
The blower must be installed with the properly sized
inlet filter, gauge and relief valve to protect the
product from dirt and over-heating.
I N S TA L L AT I O N
Accessories
Install two vacuum gauges, one before and one after
filter, to monitor restriction through filters. As filters
become clogged, performance efficiency will be
reduced. Filters should be checked periodically and
replaced when necessary. See page 7 for installation.
Install a relief valve to avoid changes in pressure or
vacuum that can cause overloading of large blowers.
Install an intake filter with a relief valve to prevent
foreign material from entering blower if blower is used in
a vacuum application in a dirty environment. In
applications where there is high humidity or liquids
being used in the process, install a moisture separator.
See Recommended Accessories on pages 7-9 or
consult your Gast Distributor/Representative for
additional filter and accessories recommendations. Do
Not install check valves that close with a strong spring.
The recommended check valves (page 7) provide
minimal pressure drop, positive sealing and are
resistant to the high discharge temperatures of large
blowers.
WARNING
DANGER Plumbing
Remove any foreign material (burrs, chips, welding
drops, slag, pipe cuttings, excess sealant, sand or
lime) from plumbing.
Check motor mounting and rotation before connecting
to plumbing. Inlet and outlet ports are not designed to
support plumbing.
Remove plugs from the IN and OUT ports. Use a small
amount of pipe thread lubricant when connecting
plumbing to protect the aluminum blower threads.
Connect with pipe and fittings that are the same size or
larger than the product’s threaded ports. When
installing two blowers in parallel, use plumbing that is
two whole pipe sizes larger in diameter than that of the
blower. Be sure to connect the intake and exhaust
plumbing to the correct inlet and outlet ports.
Plumbing to remove the hot discharge air of larger
blowers may be required to help maintain proper room
ambient temperature. Use a relief valve to discharge
excess air into the atmosphere. If the blower will be
operated at 125mbar (50” H2O) or higher, metal pipe is
required for hot exhaust air.
Mounting
The single impeller blower should be oriented with the
shaft in a horizontal position, unless the model’s product
features state otherwise. The dual impeller models must
be mounted with the shaft in a horizontal position.
Mounting the product to a stable, rigid operating surface
and using shock mounts will reduce noise and vibration.
Rotation
From the motor side of the blower, check that the blower is
rotating clockwise. (The motor side is marked with an
arrow on most models.) Proper rotation can also be
checked by the air flow at the IN and OUT ports. On
blowers powered by a 3-phase motor, incorrectly
connecting any two power lines can reverse direction.
Motor Installation
It is your responsibility to contact a qualified
electrician and assure that the electrical installation
is adequate and in conformance with all national
and local codes and ordinances.
2
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Select fuses, motor protective switches or thermal
protective switches to provide protection. Fuses act as
short circuit protection for the motor, not as protection
against overload. Incoming line fuses must be able to
withstand the motor’s starting current. Motor starters
with thermal magnetic overload or circuit breakers
protect motor from overload or reduced voltage
conditions. Motors without automatic restart require
thermal protection or magnetic over-current cutout to
prevent motor overloading from one phase in a 3-phase
circuit, high starting frequency or jammed blower.
The power required will rise as differential pressure
increases. The wiring diagram attached to the product
or on page 6 of this manual provides required electrical
information. Large motors have two diagrams, one for
50Hz wiring specifications and the other for 60Hz wiring
specifications. Check that the power source is correct
to properly operate the dual-voltage motor. If additional
information is required, please consult your Gast
Distributor/Representative.
Model with a power supply cord:
This product must be grounded. For either 120-volt or
220/240-volt circuits connect power supply cord
grounding plug to a matching grounded outlet. Do not
use an adapter.(See DIAGRAM A)
Model that is permanently wired:
This product must be connected to a grounded,
metallic, permanent wiring system, or an equipment
grounding terminal or lead on the product.
Power supply wiring must conform to all required safety
codes and be installed by a qualified person. Check
that supply voltage agrees with that listed on product
nameplate.
Extension cords:
Use only a 3-wire extension cord that has a 3-blade
grounding plug. Connect extension cord plug to a
matching 3-slot receptacle. Do not use an adapter.
Make sure your extension cord is in good condition.
Check that the gage wire of the extension cord is the
correct size wire to carry the current this product will
draw.
An undersized cord is a potential fire hazard, and will
cause a drop in line voltage resulting in loss of power
causing the product to overheat. The following table
indicates the correct size cord for length required and
the ampere rating listed on the product nameplate. If in
doubt, use the next heavier gage cord. The smaller
the gage number, the heavier the wire gage.
Check with a qualified electrician or serviceman if
the grounding instructions are not completely
understood, or if you are not sure whether the
product is properly grounded. Do not modify the
plug provided. If it will not fit the outlet, have the
proper outlet installed by a qualified electrician.
In the event of an electrical short circuit, grounding
reduces the risk of electric shock by providing an
escape wire for the electric current. This product may
be equipped with a power supply cord having a
grounding wire with an appropriate grounding plug.
The plug must be plugged into an outlet that is properly
installed and grounded in accordance with all local
codes and ordinances.
Electrical Connection
Minimum gage for extension cords
Amps Volts Length of cord in feet
120v 25 50 100 150 200 250 300 400 500
240v 50 100 200 300 400 500 600 800 1000
0-2 18 18 18 16 16 14 14 12 12
2-3 18 18 16 14 14 12 12 10 10
3-4 18 18 16 14 12 12 10 10 8
4-5 18 18 14 12 12 10 10 8 8
5-6 18 16 14 12 10 10 8 8 8
6-8 18 16 12 10 10 8 6 6 6
8-10 18 14 12 10 8 8 6 6 4
10-12 16 14 10 8 8 6 6 4 4
12-14 16 12 10 8 6 6 6 4 2
14-16 16 12 10 8 6 6 4 4 2
16-18 14 12 8 8 6 4 4 2 2
18-20 14 12 8 6 6 4 4 2 2
3
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Start Up
Operate blower for an hour and then check:
1. Ambient temperature – Check room and discharge
air temperatures. Increased room temperatures
may require stronger ventilation especially for larger
blowers. Exhaust air should not exceed 215ºF
(102ºC) for all blowers less than 3.5 Hp. Exhaust air
should not exceed 275ºF (135ºC) for all blowers
above 3.5 Hp.
2. Working pressure and vacuum values –Adjust
relief valve pressure or vacuum setting, if needed.
3. Motor current – Check that supply current matches
recommended current rating on product nameplate.
4. Electrical overload cutout – Check that current
matches rating on product nameplate.
It is your responsibility to operate this product at
recommended pressures or vacuum duties and
room ambient temperatures. Do not operate R4P or
larger size blowers without air flowing through the
blower. Do not throttle discharge or suction pipe to
reducer capacity. Throttle will increase differential
pressure causing increasing power absorption and
working temperatures.
O P E R AT I O N
If motor fails to start or slows down significantly under
load, shut off and disconnect from power supply. Check
that the voltage is correct for motor and that motor is
turning in the proper direction.
M A I N T E N A N C E
It is your responsibility to regularly inspect and
make necessary repairs to this product in order to
maintain proper operation. Make sure that pressure
and vacuum is released from product before
starting maintenance.
Check filter elements and noise absorbing foam used in
mufflers and clean motor and blower after first 500
hours of operation. Replace filter elements and
determine how frequently mufflers should be checked
during future operation. This one procedure will help
assure the product’s performance and service life.
When there is an increase in the differential pressure
across the inlet filter it is beginning to clog with dirt.
Replace the cartridge when the filter will not come
clean.
Small motor bearings (less than 5.5 Hp) never need to
be greased. Larger motor bearings (greater than 5.5
Hp) have alemite grease fittings. Use a grease gun and
apply one or two strokes of Exxon POLYREX® grease
to the fittings to lubricate larger motor bearings.
4
Check that all external accessories such as relief
valves and gauges are not damaged before re-
operating product.
Hours of Service Relubrication
Per Year Intervals
5,000 3 years
Continual Normal Service 1 year
Seasonal Service (motor 1 year at beginning of
idle for 6 months or more) season
Continuous-high ambients, 6 months
dirty or moist applications
FOR BLOWERS WITH GREASE FITTINGS
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Gast finished products, when properly installed and operated under normal conditions of use, are warranted by Gast to be free
from defects in material and workmanship for a period of twelve (12) months from the date of purchase from Gast or an
authorized Gast Representative or Distributor. In order to obtain performance under this warranty, the buyer must promptly (in no
event later than thirty (30) days after discovery of the defect) give written notice of the defect to Gast Manufacturing
Incorporated, PO Box 97, Benton Harbor Michigan USA 49023-0097 or an authorized Service Center (unless specifically agreed
upon in writing signed by both parties or specified in writing as part of a Gast OEM Quotation). Buyer is responsible for freight
charges both to and from Gast in all cases.
This warranty does not apply to electric motors, electrical controls, and gasoline engines not supplied by Gast. Gast’s warranties
also do not extend to any goods or parts which have been subjected to misuse, lack of maintenance, neglect, damage by
accident or transit damage.
THIS EXPRESS WARRANTY EXCLUDES ALL OTHER WARRANTIES OR REPRESENTATIONS EXPRESSED OR IMPLIED
BY ANY LITERATURE, DATA, OR PERSON. GAST’S MAXIMUM LIABILITY UNDER THIS EXCLUSIVE REMEDY SHALL
NEVER EXCEED THE COST OF THE SUBJECT PRODUCT AND GAST RESERVES THE RIGHT, AT ITS SOLE DISCRETION,
TO REFUND THE PURCHASE PRICE IN LIEU OF REPAIR OR REPLACEMENT.
GAST WILL NOT BE RESPONSIBLE OR LIABLE FOR INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, however
arising, including but not limited to those for use of any products, loss of time, inconvenience, lost profit, labor charges, or other
incidental or consequential damages with respect to persons, business, or property, whether as a result of breach of warranty,
negligence or otherwise. Notwithstanding any other provision of this warranty, BUYER’S REMEDY AGAINST GAST FOR
GOODS SUPPLIED OR FOR NON-DELIVERED GOODS OR FAILURE TO FURNISH GOODS, WHETHER OR NOT BASED
ON NEGLIGENCE, STRICT LIABILITY OR BREACH OF EXPRESS OR IMPLIED WARRANTY IS LIMITED SOLELY, AT
GAST’S OPTION, TO REPLACEMENT OF OR CURE OF SUCH NONCONFORMING OR NON-DELIVERED GOODS OR
RETURN OF THE PURCHASE PRICE FOR SUCH GOODS AND IN NO EVENT SHALL EXCEED THE PRICE OR CHARGE
FOR SUCH GOODS. GAST EXPRESSLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR USE OR PURPOSE WITH RESPECT TO THE GOODS SOLD. THERE ARE NO WARRANTIES WHICH
EXTEND BEYOND THE DESCRIPTIONS SET FORTH IN THIS WARRANTY, notwithstanding any knowledge of Gast regarding
the use or uses intended to be made of goods, proposed changes or additions to goods, or any assistance or suggestions that
may have been made by Gast personnel.
Unauthorized extensions of warranties by the customer shall remain the customer’s responsibility.
CUSTOMER IS RESPONSIBLE FOR DETERMINING THE SUITABILITY OF GAST PRODUCTS FOR CUSTOMER’S USE OR
RESALE, OR FOR INCORPORATING THEM INTO OBJECTS OR APPLICATIONS WHICH CUSTOMER DESIGNS,
ASSEMBLES, CONSTRUCTS OR MANUFACTURES.
This warranty can be modified only by authorized Gast personnel by signing a specific, written description of any modifications.
WA R R A N T Y
5
Models
R4P115, R5125-2, R6125-2
Low Voltage High Voltage
Single Phase Single Phase
Purple L1 Purple L1
Brown Tie together Brown Insulate
Orange & Insulate White Tie together
Blue Orange & Insulate
White L2 Blue
Red Red L2
E L E C T R I C A L WIRING DIAGRAMS
Models
R1102, R2103, R2105, R3105-1, R3105-12, R4110-2
Low Voltage High Voltage
Single Phase Single Phase
Blue P1 Line P1 Line
Brown P2 P2 Insulate
Black 5 Tie together 5
Orange 3& Insulate 3 Tie together
White 2 2 & Insulate
Yellow 4 Tie together Line 4 Line
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Note: Model R6P355A has two additional leads labeled “J” for an external thermal motor protection circuit.
T7 T8 T9
T6 T4 T5
T1 T2 T3
T6 T5 T4
T9 T8 T7
T3 T2 T1
T6 T5 T4
T9 T8 T7
T3 T2 T1
T6 T5 T4
T9 T8 T7
T3 T2 T1
Line Line Line Line
Low Voltage High Voltage Low Voltage High Voltage
T10 T11 T12
T4 T5 T6
T7 T8 T9
T1 T2 T3
T10 T11 T12
T4 T5 T6
T7 T8 T9
T1 T2 T3
T14 T15 T16
T4 T5 T6
T7 T8 T9
T1 T2 T3
Line Line Line Line
Low Voltage High Voltage Low Voltage High Voltage
T14 T15 T16
T4 T5 T6
T7 T8 T9
T1 T2 T3
To reverse rotation on any 3-Phase motor, interchange any two external motor line connections to any two line leads.
Models
R2303A, R3305A-1, R3305A-13, R4310A-2, R4P315A, R6350A-2, R6P350A, R6PP3110M, R6PS3110M,
R7100A-3, R7P3180M, R7S3180M, R93150A
Connections for 3-Phase, 12 Leads
Models R6335A-2, R6P335A Models R5325A-2, R6325A-2 (BEFORE 1-1-06)
Connections for 3-Phase, 9 Leads
Model R9P3300M, R93150A, R93150A-35
6
T10 T11 T12
T4 T5 T6
T7 T8 T9
T1 T2 T3
Line Line
Low Voltage High Voltage
T10 T11 T12
T4 T5 T6
T7 T8 T9
T1 T2 T3
Models R5325A-2, R6325A-2 (AFTER 1-1-06)
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RECOMMENDED A C C E S S O R I E S
The following diagrams are only suggested configurations for these accessories. These accessory configurations may
vary depending upon a particular unit’s application.
For Model Number R3, R4, R5 R4, R4H, R4H, R4M, R4M, R6,
R4P, R5 R5, R6, R6P, R6PP,
R6P, R6PS, R7, R7P,
R7S, R9,
R9S
Part Number RMS160 RMS200 RMS300 RMS400
CFM capacity 160 200 300 400
Liquid capacity (gal.) 10 19 19 40
Diameter (A) 14.8” 19.7” 19.7” 24”
Dimension (B) 37.5” 35” 35” 44”
NPT outlet (C) 2” 2” 2.5” 3”
Inlet diameter (D) 2” 2” 2.5” 3”
Dimension (E) 7.5” 7.5” 7.5” 9.7”
Dimension (F) 26.6” 26.6” 26.6” 29”
Model Number R1, R2 R3 R4, R5, SDR4, R6, R6P, SDR6P,R7, R7S
SDR4, R4P SDR6, R6PS
Part Number AH326B AH326C AH326D AH326F AH326G
Dimension (A) 3.57” 4.19” 4.50” 5.25” 8.00”
Dimension (B) 2.32” 2.69” 2.94” 3.82” 5.07”
Dimension (C) 1.00” NPT 1.25” NPT 1.50” NPT 2.00” NPT 2.50” NPT
MOISTURE SEPARATOR (FOR VACUUM)
This moisture separator removes liquids from the gas stream in a vacuum process.
This helps protect the blower from corrosion and the build up of mineral deposits.
HORIZONTAL SWING TYPE CHECK VALVE
This check valve prevents backwash of fluids from entering the blower and air back-streaming.
The check valve can be mounted to discharge or inlet either vertically or horizontally.The check
valve will open with 3” of water pressure or vacuum.
Maximum vacuum allowed: 22” Hg.
X
Explosion-proof, high level
float switch AJ213 (optional).
7
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RECOMMENDED A C C E S S O R I E S
Pressure/Vacuum Gauges
AJ496 2.50” Dia. Pressure 1/4” NPT 0-60 in. H2O and 0-150 mbar
AE133 2.50” Dia. Pressure 1/4” NPT 0-160 in. H2O and 0-400 mbar
AE133A 2.50” Dia. Pressure 1/4” NPT 0-200 in. H2O
AJ497 2.50” Dia. Vacuum 1/4” NPT 0-60 in. H2O and 0-150 mbar
AE134 2.50” Dia. Vacuum 1/4” NPT 0-160 in. H2O and 0-400 mbar
AE134F 3.50” Dia. Vacuum 1/4” NPT 0-15 in. HG
Pressure/Vacuum Relief Valves
AG258 1.50” NPT Adjustable 30-200 in. H2O; 200 cfm max
AJ121D Silencer for AG258 Relief Valve
AG258F 2.50” NPT Adjustable 25-200 in. H2O; 560 cfm max
AJ121G Silencer for AG258F Relief Valve
PRESSURE – VACUUM GAUGE
PRESSURE – VACUUM RELIEF VALVE
8
Model Number R1 R2 R3 R4 SDR4, R4P,SDR5, SDR6, R6, R6PP, SDR6P,R7S, R9,
R4H, R5 R6P, R7M R6PS, R7, R7S R9P, R9S
Part Number AJ151A AJ151B AJ151C AJ151D AJ151E AJ151G AJ151H AJ151M
Dimension (A) 5.88” 7.38” 7.38” 7.38 8.75 8.75” 14.00” 18.50”
Dimension (A1) – – – – – – 16.25” 20.75”
Dimension (B) 4.50” 6.81” 6.81” 6.81” 10.25” 10.50” 27.13” 28.13”
Dimension (C) 2.75” 4.62” 4.62” 4.62” 5.00” 5.50” 18.50” 19.50”
Dimension (D) 1.00” FPT 1.00” FPT 1.25” FPT 1.50” FPT 2.00” FPT 2.50” FPT 3”MPT 5” MPT
Dimension (E) 1.00” FPT 1.00” FPT 1.25” FPT 1.50” FPT 2.00” FPT 2.50” FPT 3”MPT 5” MPT
Replacement AJ135D AJ135E AJ135E AJ135E AJ135F AJ135G AJ135C AJ135H
Element
Micron 10 10 10 10 10 10 10 10
INLINE FILTERS (FOR VACUUM)
The impeller of a blower passes very closely to the housing. It is recommended
to have an inlet or in-line filter to ensure a trouble-free service life.
MPT = Male Pipe Thread
FPT = Female Pipe Thread
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RECOMMENDED A C C E S S O R I E S
Model Number R1, R2 R3 R4, SDR4, R4H, R6, R6P, R6PS R7, R7S R6PP, R9 R7P
R4P, R5 SDR6P, SDR6 Exhaust Exhaust
Part Number AJ121B AJ121C AJ121D AJ121F AJ121G AJ121H AJ121M
Dimension (A) 7.46” 7.94” 12.75” 17.05” 17.44” 20.30” 33.60”
Dimension (B) 2.38” 2.62” 3.25” 3.63” 4.25” 4.75” 6.00”
Dimension (C) 1.00” NPT 1.25” NPT 1.50” NPT 2.00” NPT 2.50” NPT 3” NPT 4”NPT
Model Number R1, R2 R3 R4, R4H, R4P SDR5, R6, SDR6, SDR6P, R7, R9, R9P,
SDR4, R5 R5P, R6PP, R6PS R7P, R7S R9S
Part Number AJ126B AJ126C AJ126D AJ126F AJ126G AJ126M
Dimension (A) 6.00” 6.00” 7.70” 10.62” 10.00” 16.00”
Dimension (B) 4.62” 7.12” 7.12” 4.81” 13.12” 14.62”
Dimension (C) 1.00” MPT 1.25” MPT 1.50” MPT 2.00” FPT 2.50” MPT 5” MPT
Replacement AJ134B AJ134C AJ134E AG340 AJ135A AJ135H
Element
Micron 10 10 10 10 10 10
INLET FILTERS (FOR PRESSURE)
All filters are heavy duty for high-particulate service. Inlet filters for
Regenair blowers are drip-proof when mounted as shown..
MPT = Male Pipe Thread
FPT = Female Pipe Thread
MUFFLERS
Designed to reduce noise by up to 5 dbA and remove
high-frequency sound associated with all blowers.
9
PARTS & ORDERING INFORMAT I O N
REF# ITEM QTY R1102 R2103 R2105 R2305B R3105-1
R1102C R2303A R3305A-1
R1102K R3305B-1
1 COVER 1 AJ101A AJ101B AJ101B AJ101B AJ101C
2LOCK NUT 1 BC187 BC187 BC181 BC181 BC181
3 IMPELLER 1 AJ102A AJ102BQ AJ102B AJ102B AJ102C
4SQUARE KEY 1 AH212C AH212 AB136A AB136A AB136A
5SHIM SPACER ∆AE686-5 AE686-3 AJ109 AE686-3 AJ109
6 RETAINING RING 1 AJ145 AJ145 AJ149 AJ145 AJ149
7 HOUSING 1 AJ103A AJ103BQ AJ103B AJ103B AJ103C
8 – – – - – – –
9 – – – - – – –
10A FOAM ∆AJ112A(4) AJ112BQ(6) AJ112BQ(6) AJ112BQ(6) AJ112C(4)
10B FOAM 2 – – – – AJ112CQ
11 MUFFLER EXTENSION 1 AJ106A AJ106BQ AJ106BQ AJ106BQ AJ106CQ
Please reference the exploded view on Page 11 for the following model and parts table.
∆As required.
Parts listed are for stock models. For specific OEM models, please consult the factory.
When corresponding or ordering parts, please give complete model and serial numbers.
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PARTS & ORDERING INFORMAT I O N
REF# ITEM QTY R3105-12 R4110-2 R4P115 R5125-2 R6125-2 R6P335A R6135J-10
R3305A-13 R4310A-2 R4P315A† R5325A-2 R6150J-2 R6P350A
R4310B-1 R5325B-1 R6325A-2 R6P350B
R6335A-2
R6335B
R6350A-2
R6350B-2
1 COVER 1 AJ101C AJ101D AJ101L AJ101EQ AJ101FB AJ101K AJ101FB
2LOCK NUT 1 BC181 BC181 BC181 AJ259 AJ259 AJ259 AJ259
3 IMPELLER 1 AJ102CA AJ102D AJ102L AJ102E AJ102FR AJ102K AJ102FR
4SQUARE KEY 1 AB136A AB136D AB136D AB136 AB136 AB136 AB136
5SHIM SPACER ∆AJ109 AJ109 AJ109 AJ109 AJ109 AJ109 AJ260A
5 † SHIM SPACER † 1 – – AJ109A † – – – –
6 RETAINING RING 1 AJ149 AJ149 AJ149 – – – –
7 HOUSING 1 AJ103C AJ103DR AJ103L AJ103EQ AJ103FQ AJ103K AJ103FQ
8MUFFLER BOX 1 – – – – – AJ104K –
9 SPRING 2 – AJ113DR AJ113DQ AJ113DQ AJ113FQ AJ113FQ AJ113FQ
9A SCREEN 2 – – AJ123EQ AJ123EQ AJ123FB – AJ123FB
10A FOAM ∆AJ112C(4) AJ112DS(4) AJ112ER(6) AJ112ER(6) AJ112FC(6) AJ112K(8) AJ112FC(6)
10B FOAM 2 AJ112CQ AJ112DR – – – – –
11 MUFFLER EXTENSION 1 AJ106CQ AJ106DQ AJ106EQ AJ106EQ AJ106FR – AJ106FR
REF# ITEM QTY R6P355A R6PP3110M* R6PS3110M* R7100A-3 R7100B-1
R6P350A
R6P350B
1 COVER 1 AJ101K AJ101KA(2) AJ101KA(2) AJ101G AJ101G
2LOCK NUT/BOLT 1 AJ259 BB750(2) BB750(2) BB750 BB750
3 IMPELLER 1 AJ102K AJ102KA(2) AJ102KA(2) AJ102GZ AJ102GA
4SQUARE KEY 1 AB136 AB136(2) AB136(2) AC628 AC628
5SHIM SPACER ∆AJ109 AJ169F AJ169F AJ110 AJ110
6 RETAINING RING 1 – – – – –
7 HOUSING 1 AJ103K AJ103KD(2) AJ103KD(2) AJ103GA AJ103GA
8MUFFLER BOX 1 AJ104K – – AJ104GA AJ104GA
8A SCREEN 2 – – – AJ998G AJ998G
9 SPRING 2 AJ113FQ – – – –
10A FOAM ∆AJ112K(8) – – AJ112GA(8) AJ112GA(8)
10B FOAM 2 – – – – –
11 MUFFLER EXTENSION 1 – – – – –
12 ** O-RING 2 – AJ175 – – –
13 GASKET 4 – AJ107F AJ107F – –
Please reference the exploded view on the next page for the following model and parts tables.
†R4P315A only.
* Dual models.
** Not shown.
∆As required.
Parts listed are for stock models. For specific OEM models, please consult the factory.
When corresponding or ordering parts, please give complete model and serial numbers.
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REF# ITEM QTY R7P3180M* R7S3180M* R9P3300M* R9S3300M* R93150A
1 COVER 1 AJ101G(2) AJ101G(2) AJ101M(2) AJ101M(2) AJ101M
2LOCK NUT/BOLT 1 BB750(2) BB750(2) BB707(2) BB707(2) BB707
3 IMPELLER 1 AJ102GZ(2) AJ102GZ(2) AJ102M(2) AJ102M(2) AJ102M
4SQUARE KEY 1 AC628(2) AC628(2) AE130A(2) AE130A(2) AE130A
5SHIM SPACER ∆AJ110 AJ110 BJ110 BJ110 BJ110A
6 RETAINING RING 1 – – – – –
7 HOUSING 1 AJ103GA(2) AJ103GA(2) AJ103M(2) AJ103M(2) AJ103M
8MUFFLER BOX 1 – – – – AJ104MP
8A SCREEN 2 – – – – AJ998M
9 SPRING 2 – – – – –
10A FOAM ∆– – – – AJ112M(10)
10B FOAM 2 – – – – –
11 MUFFLER EXTENSION 1 – – – – –
12 ** O-RING 2 AJ175G – AJ175G – –
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EXPLODED PRODUCT VIEW
11
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TROUBLESHOOTING CHART
Problem Reason Remedy
Increased sound. Noise absorbing foam is damaged. Replace foam.
Impeller rubbing inside. Send unit to a Gast Authorized
Service Facility.
Excessive vibration. Damaged impeller.Replace impeller.
Motor and/or impeller are dirty.Clean motor and impeller periodically.
Ambient and exhaust temperature Motor and/or blower are dirty.Clean motor and blower periodically.
increases. Filters dirty.Replace filters.
Decreased inlet air pressure Inlet air filter is clogged. Clean inlet filter. Replace cartridge.
Unit is very hot. Wrong wiring. Check wiring.
Low voltage. Supply proper voltage.
Inlet air filter is clogged. Clean inlet filter. Replace cartridge.
Motor and/or blower are dirty.Clean motor and blower periodically.
Operating at too high a pressure or Install a relief valve and pressure or
vacuum. vacuum gauge.
Unusual sound. Impeller is damaged or dirty.Clean or replace impeller.
Bearing going bad. Send unit to a Gast Authorized
Service Facility.
Motor overload Low voltage. Check power source.
Check wire size and wire connections.
Unit does not start. Incorrect electrical connection or Check wiring diagram, circuit fusing
power source. and circuit capacity.
Impeller is damaged. Clean or replace impeller. Install
proper filtration.
PART NO. 70 - 6000 F2-200 (REV-J)
12
We have Gast Certified Service Centers throughout the world. For the most up-to-date
listing, contact one of our sales offices below:
World Headquarters
P.O. Box 97
2550 Meadowbrook Rd.
Benton Harbor, MI 49023-
0 0 9 7
Ph: 269/926-6171
FAX: [phone]
w w w. g a s t m f g . c o m
Gast Hong Kong
Unit 12, 21/F, Block B
New Trade Plaza
6, On Ping Street, Shatin
N. T. Hong Kong
Ph: (852) 2690 1008
Fax: [phone]
www.gasthk.com
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