Curtis CT Series User manual

INSTALLATION, OPERATING
INSTRUCTION MANUAL AND
PARTS LIST FOR
MODEL CT-55 & CT-75
CURTIS-TOLEDO, INC.
1905 Kienlen Ave. , St. Louis, Missouri 63133
ph: [phone] fax: [phone]
website: www.curtistoledo.com
email: [e-mail]
CAP410
DECEMBER, 2007
REV. F
PERSONAL INJURY AND/OR EQUIPMENT DAMAGE WILL RESULT FROM FAILURE
TO PAY ATTENTION TO THE VITAL SAFETY INFORMATION AND INSTRUCTIONS IN
THIS MANUAL. CAREFULLY READ, UNDERSTAND AND RETAIN ALL SAFETY
INFORMATION AND INSTRUCTIONS BEFORE OPERATING THIS COMPRESSOR.
IMPORTANT
Make a permanent record of the
Model and Serial number of your
machine here. You will save time
and expense by including this
reference identification on
replacement part orders.
WARNING
Before installing and operating this
compressor, read and understand the
safety precautions contained in LV-474
supplement to CAP-403.
SERIAL NO.
REFER TO MODEL & SERIAL NUMBER.
READ INSTAL. & OPERATION INSTR.
DO NOT OPERATE LOWER THAN 800
R.P.M. OR ABOVE MAX. AS STIPULATED
BY PERFORMANCE DATA SHEET.
MODEL NO.
QAB-826

CT SERIES CAP 410
TABLE OF CONTENTS
TITLE PAGE
INSTALLATION & ELECTRICAL REQUIREMENTS…………………………………… 1
LIMITED SAFETY PRECAUTIONS (Also see supplement LV-474)………………….. 2
START UP PROCEDURES……………………………………………………………….. 3 & 4
REBUILD KITS……………………………………………………………………………… 5
ASSEMBLY DRAWING, VERTICAL, 5HP – MODEL 555VT6………………………… 6
PARTS LIST – 5HP, MODEL 555VT6-A2 & 555VT8-A21...…………………………… 7
ASSEMBLY DRAWING, VERTICAL, 5HP – MODEL 555VT8………………………… 8
PARTS LIST – 5HP, MODEL 555VT8-A2, 555VT8-A9, 555VT8-A3, 555VT8-A4 &
555VT8-A8……………………………………………………… 9
ASSEMBLY DRAWING, VERTICAL, 7 1/2HP – MODEL 755VT8…………………….. 10
PARTS LIST – 7 1/2HP, MODEL 755VT8-A2, 755VT8-A9, 755VT8-A3,
755VT8-A4, 755VT8-A8……………………………………….
.
11
ASSEMBLY DRAWING, VERTICAL, 7 1/2HP – MODEL 775VT8…………………….. 12
PARTS LIST – 7 1/2HP, MODEL 775VT8-A2, 775VT8-A3, 775VT8-A4,
775VT8-A8, 775VT8-A9……………...…………….. 13
ASSEMBLY DRAWING, VERTICAL, 10HP – MODEL 1075VT8…………….………...
PARTS LIST - 10HP, MODEL 1075VT8-A2, 1075VT8-A3, 1075VT8-A4
1075VT8-A8, 1075VT8-A9 …………………………………...
ASSEMBLY DRAWING, HORIZONTAL, 7 1/2HP – MODEL 775HT12……………….
14
15
16
17
18
19
PARTS LIST – 7 1/2HP, MODEL 775HT12-A2, 775HT12-A3, 775HT12-A4,
775HT12-A8, 775HT12-A9……………………………………….
ASSEMBLY DRAWING, HORIZONTAL, 10HP – MODEL 1075HT12…………….…..
PARTS LIST – 10HP, MODEL 1075HT12-A2, 1075HT12-A3, 1075HT12-A4,
1075HT12-A8, 1075HT12-A9…………………………………….
ASSEMBLY DRAWING, HORIZONTAL, 13HP – HONDA……………………………... 20
PARTS LIST – 13HP, MODEL 1375GT3-HE, 1375GT6-HE…………………………… 21
ASSEMBLY DRAWING, HORIZONTAL, 13HP – KOHLER……………………………. 22
PARTS LIST – 13HP, MODEL 1375GT3-KC, 1375GT6-KC…………………………… 23
BOLT TORQUES & COMPRESSOR PUMP-UP TIMES…………………………….…. 24
TROUBLESHOOTING……………………………………………………………………… 25
DRYERS AND FILTERS…………………………………………………………………… 26
WIRING PROCEDURES - 3 PHASE FACTORY MOUNTED MOTOR STARTER….. 27
WIRING PROCEDURES - 3 PHASE FIELD INSTALLATION STARTER WIRING.… 28
WIRING PROCEDURES - 1 PHASE FACTORY MOUNTED STARTER……………. 29
WIRING PROCEDURES - 1 PHASE FIELD INSTALLATION STARTER………….… 30
WIRING PROCEDURES - PRESSURE SWITCH (WITH MAGNETIC STARTER).… 31
WIRING PROCEDURES - PRESSURE SWITCH, MODEL 555VT6-A2 &
555VT8-A21 (WITHOUT MAGNETIC STARTER)…….… 32

CT SERIES CAP 410
INSTALLATION
CONGRATULATIONS on your new CT Series
Compressor. Please examine the compressor for
shipping damage(s) and if any are found report it
immediately to the carrier.
Select a clean dry location with a rigid floor strong
enough to support the compressor. If the compressor
is to be located in an area where vibration is critical,
properly engineered vibration mounts and flexible
piping should be used. Remove the skid. NOTE: The
compressor should never be operated on the
shipping skid. Level the compressor so it can be
bolted down securely. Before tightening the bolts,
check to see that all four feet are resting on the
foundation. Shim as necessary to eliminate stress on
the receiver or base when the bolts are tightened. We
suggest using a level for proper alignment.
Maximum ambient temperature in which the
compressor and motor should be operated is 104°F.
Therefore, adequate ventilation must be provided.
The suction openings of the compressor are
equipped with a combination air filter-muffler to
protect the compressor from normal dust and other
harmful substances. If the air around the
compressor is excessively hot, dusty, humid or
contaminated with foreign gases (such as ammonia
or acid fumes) move the filter-muffler to a remote
point where the air is clean, cool and dry. Run a
pipe to the compressor suction opening. If the run
is over 50 feet in length, use a larger pipe to avoid
excessive pressure drop. In order to fit the filter to
the compressor, bush down the connections. Be
sure piping and fittings are clean and free from dirt
and chips. If the filter is installed outside, check to
insure that it is located above the normal outside
dust level, and the filter element is protected
against rain or ice.
ELECTRICAL REQUIREMENTS
The electrical installation of this unit is required to be performed by a qualified electrician and must be in
accordance with the latest edition of the National Electrical Code (N.E.C.), NFPA 70, O.S.H.A. Code including
all local and state codes. Failure to comply by the national, state and local codes may result in physical harm
and/or property damage. Do not under any circumstances by-pass any motor over current protection devices.
NOTE: This unit must be grounded.
Before installation, the electrical supply must be checked for adequate wire size and transformer
capacity. Failure to install branch circuit protection with proper motor starters and overloads will void
the motor manufacturers warranty. NOTE: Do not close the disconnect switch to start the compressor
until the procedures outlined under “Startup Procedures” have been completed.
DANGER!
High voltage may cause personal injury or death, per O.S.H.A. regulations 1910.137, disconnect and
lockout/tagout all electrical power supplies before opening the electrical enclosure or servicing.
WARNING!
Never assume a compressor is safe to work on just because it is not operating. It could restart at any
time. Follow all safety precautions as outlined in this manual.
All NEMA electrical enclosures and components must be in accordance with the surrounding
environment of the installation.
PAGE 1

CT SERIES CAP 410
PAGE 2
LIMITED SAFETY PRECAUTIONS
(Also see supplement LV-474)
The following safety precautions are recommended
in the use of this compressor:
1. Furnished with a totally enclosed OSHA-
approved belt guard to cover the drive assembly.
Where possible, place the flywheel toward the
wall, and mount the unit a minimum distance of 2
feet from the wall for maintenance convenience.
2. Turn off & lock out the electrical disconnect
switch before working on the unit to prevent the
unit from starting unexpectedly
3. Release all air pressure from the system before
working on the unit and red tag all electrical
control switches, for safety precaution.
4. Do not by-pass motor over-current protection.
5. Do not change the setting or in any way affect
the operation of the safety valve.
6. Keep unit securely anchored so that movement
will not put a strain on piping, wiring, or air
receiver. (DO NOT USE plastic pipe, rubber
hose, or lead-tin soldered joints in any part of
the compressed air system.)
WARNING: Read and understand supplement LV-474 before installing and operating the compressor.

CT SERIES CAP 410
PAGE 3
START-UP PROCEDURES
OIL RECOMMENDATION
Use Genuine CURTISLUBEPLUS Lubricants. Specially
formulated for Curtis Reciprocating Air Compressors. Non-
Detergent type with anti-foam, anti-rust and oxidation
inhibitors.
Recommended ISO68 RC-1000 Premium Reciprocating
Compressor Lubricant, Part no. VO411-3, 12-quart case or
VO411-2, 4 gallon case.
Recommended ISO100 RC-1000A Premium Reciprocating
Compressor Lubricant Part no. VO421-3, 12-quart case or
VO421-2, 4 gallon case.
CURTISLUBEPLUS Lubricants are available through
your authorized Curtis distributor.
If the compressor is equipped with an automatic start-stop
control (with pressure switch unloading), it is automatically
unloaded upon starting, and will automatically load after
attaining running speed. Close the disconnect switch and
start the compressor. Observe the direction of rotation,
which should be counterclockwise when viewed from the
flywheel side of the compressor on all models. For single-
phase units, the direction of rotation is determined by the
motor nameplate instructions, and is adjusted at the factory.
For three-phase units, if the rotation is incorrect, stop the unit
and interchange any two of the three wires to the motor at
the disconnect switch. This will reverse the direction of
rotation of the motor and compressor.
PREVENTIVE MAINTENANCE TURN OFF POWER BEFORE
SERVICING!!!
A good maintenance program will add years of service to
your air compressor. The following is recommended as a
minimum maintenance program.
(DO NOT OPERATE WITHOUT BELT GUARD)
LUBRICATION
1. For proper lubrication the compressor shall not be
operated below the minimum or above the maximum R. P.M.
recommended for the various models.
2. Maintain oil level mid-way between the upper and lower lines
of the crankcase sight gage. NOTE ILLUSTRATION:
3. Stop compressor to add and gauge oil.
4. Do not fill above the upper line and do not operate compressor
with oil level below the lower line.
DO NOT OVER FILL
5. Change oil at the first 100 hours of operation and 1000 hours
thereafter, or as required. It may be necessary to change oil
more frequent due to abnormal humid and contaminated
conditions.
DAILY MAINTENANCE SCHEDULE
1. Check and maintain oil level at centerline of sight glass and
add oil as necessary.
2. Drain condensate from receiver unless it is equipped with an
automatic tank drain, in which case the drain should be
checked weekly to see that it is operating. See automatic tank
drain instructions.
3. Check for unusual noise or vibration (See "Trouble Shooting".)
WEEKLY
1. Clean the air filters. A clogged air filter can seriously affect the
efficiency of the compressor and cause overheating and oil
usage.
2. Clean all external parts of the compressor and driver. Be sure
to clean the intercooler-finned surface on two-stage
compressors. A dirty compressor will cause abnormally high
discharge temperature and resulting oil carbonization on
internal valve components
3. Check the safety valve manually (by pulling ring or lever) to
see that it is not stuck.
INITIAL – 100 HOURS OR 30 DAYS
1. Change oil.
2. Check drive belt tension and tighten if needed.
MONTHLY
1. Inspect the entire air system for leaks.
2. Inspect condition of oil and change if necessary.
3. Check drive belt tension and tighten if needed.
EVERY 3 MONTHS OR 1,000 HOURS OF OPERATION.
1. Change oil.
2. lnspect valves. Clean the carbon from valves and head if
necessary.
3. Check and tighten if necessary all bolts, nuts, etc.
4. Check unloader operation.
*CHECKING BELT TENSION
The v-belt(s) should be adjusted so that a declination of about 3/8
– 1/2 inch will be obtained when it is pushed by a finger at the
middle point as shown in Figure 1.
CAUTION: Over tightening the v-belt(s) will result in
overloading of the motor and belt failure, while a loose
belt will be slipping and resulting in an unstable speed,
overheating the belt and high amp draw.
WARNING: Read and understand supplement LV-474 before installing and operating the compressor.

CT SERIES CAP 410
PAGE 4
Figure 1
To change tension, loosen the motor hold-down bolts and
slide the motor on the base, using a lever if necessary, or
by turning the adjusting bolt at the end of the base.
Retighten motor hold-down bolts.
NOTE: Do not over tighten belts.
ELECTRIC MOTOR
Grease once a year with a good grade of lithium ball
bearing grease, or as directed by the motor manufacturer

CT SERIES CAP 410
REBUILD KITS
Model CT-55 – Replacement Parts
(CCC1791) Model CT-75 – Replacement Parts (CCC1792)
Model Part
Numbers Description Model Part Numbers Description
CT-55 CCC1793 Gasket Kit CT-75 CCC1794 Gasket Kit
CT-55 CCC1795 Valve Plate Kit CT-75 CCC1796 Valve Plate Kit
CT-55 CCC1797 L P Ring Kit CT-75 CCC1799 L P Ring Kit
CT-55 CCC1798 H P Ring Kit CT-75 CCC1800 H P Ring Kit
CT-55 701208A1-57080 Shaft Seal CT-75 9340181-50350 Shaft Seal
CT-55 70A109B1-57702 Oil Sight Glass CT-75 70A109B1-57702 Oil Sight Glass
CT-55 701208A1-57191A Oil Fill Plug CT-75 701208A1-57191A Oil Fill Plug
CT-55 70131BA1-57670 Breather Tube CT-75 70131BA1-57670 Breather Tube
CT-55 70A109B1-87100 Intercooler CT-75 40A612B1-87100 Intercooler
CT-55 VA1163 Intake Filter Elem. CT-75 VA1165 Intake Filter Elem.
CT-55 VA1166 Intake Filter Assy. CT-75 VA1164 Intake Filter Assy.
When replacing 40CT pump, Use kit # CCC1801 When replacing 60CT pump, Use kit # CCC1802
Pump CT 55 Pump CT 75
Discharge tube Discharge tube
Fittings Fittings
Pulley Pulley
Belts Belts
Top bracket Top bracket
Stud, Mounting Stud, Mounting
When replacing 60CT pump, Model 1060HT12
Use kit # CCC1805 When replacing 60CT pump, Model 760HT12 Use kit # CCC1806
Pump CT 55 Pump CT 75
Discharge tube Discharge tube
Fittings Fittings
Pulley Pulley
Belts Belts
Top bracket Top bracket
Stud, Mounting Stud, Mounting
When replacing 60CT pump used with Honda
engine, use kit # CCC1803 When replacing 60CT pump used with Kohler engine, use kit # CCC1804
Pump CT 75 Pump CT 75
Discharge tube Discharge tube
Fittings Fittings
Pulley Pulley
Belts Belts
Top bracket Top bracket
Stud, Mounting Stud, Mounting
PAGE 5

CT SERIES CAP 410
EXPLODED VIEW, VERTICAL, 5HP, 60 GALLON– MODEL 555VT6
PAGE 6

CT SERIES CAP 410
PAGE 7
PARTS LIST, VERTICAL
ITEM
NO. DESCRIPTION QTY
555VT6-A2*
5 HP 555VT8-A21* 5 HP
1 COMPRESSOR CT 55 1 CCC1791 <
2 MOTOR 1 VM959 VM959
3 PULLEY 1 VDA203 <
4 INNER SCREEN (BELT GUARD) 1 CAF2487 <
5 OUTER BELT GUARD 1 CAF2486 <
6 VERTICAL TANK 1 OQA217 OQA216
7 DISCHARGE PIPE CT 55 1 OFF911A <
8 FILTER, INTAKE ASSEMBLY 1 VA1166 <
9 FILTER, INTAKE ELEMENT 1 VA1163 <
10 STREET ELBOW 90° BRASS 1 VA08AE <
11 PRESSURE SWITCH 1 VSA361 <
12 PRESSURE SWITCH, TREE 1 CCC1677 <
13 DRAIN COCK 1 VV552 <
14 SAFETY VALVE 1 VV404 <
15 PRESSURE GAUGE, AIR 1 VA334 <
16 STUD MTG 4 CCC1814 <
17 WASHER, RUBBER 4 VH1320 <
18 NUT 4 VH1536 <
19 TUBING, ¼” 1 OFF908 OFF908
20 ELBOW, 90º 1 VA15ACE <
21 CHECK VALVE 1 VV809 <
22 COMPRESSION CONNECTOR 1 VA14EHE <
23 V-BELT 1 VD310 <
24 BRACKET BELTGUARD TOP 1 CAF2526 <
25 BELT GUARD CLIPS 5 CAF2488 <
26 HHCS ¼-20 X ½LG 12 VH51FE1 <
27 BUSHING, REDUCING 2” X ¼” NPT 1 VA12JBQ <
28 DRAIN COCK 1 VV514 <
29 NUTS, WIRE BELT GUARD 2 VH515 <
30 BOLT, 3/8-1”LG 3 VH10HH <
31 WASHER, RUBBER 4 VH1320 <
32 NUT 4 VH1536 <
33 HHCS 5/16-18UNC X 1,
(MOUNTING BELTGUARD TO FRAME ) 3 VH1108 <
34 WIRE TERMINAL RING TONGUE 4 VE794 <
35 WIRE NUTS 2 VE741 <
36 MOTOR BOLT 1 OFA299 <
37 TAKE-UP, MOTOR BOLT 1 OFC256 <
38 CORD ASSSEMBLY 1 CCC1682 <
39 CONNECTOR, 90° 1 VE795 <
40 CONNECTOR, STRAIGHT 1 8290 <
41 COMPRESSION FITTING (not shown) 1 VA14DHE <
42 KNOCKOUT PLUG 1 VE665 <
43 HP 1/8” ASME SAFETY VALVE 2 CCC1718 <
* A21 = 1/60/230

CT SERIES
CAP 410
PAGE 8
EXPLODED VIEW, VERTICAL, 5HP, 80 GALLON – MODEL 555VT8

CT SERIES CAP 410
PAGE 9
PARTS LIST, VERTICAL
ITEM
NO. DESCRIPTION QTY 555VT8- 2*A
5 HP 555VT8- 9*A
5 HP 555VT8-A3*
5 HP 555VT8-A4* 5 HP 555VT8-A8* 5 HP
1 COMPRESSOR CT 55 1 CCC1791 < < < <
2 MOTOR 1 VM957 VM960 VM908 VM908 VM961
3 PULLEY 1 VDB334 < < < <
4 INNER SCREEN (BELT GUARD) 1 CAF2487 < < < <
5 OUTER BELT GUARD 1 CAF2486 < < < <
6 VERTICAL TANK 1 OQA218 < < < <
7 DISCHARGE PIPE CT 55 1 OFF911A < < < <
9 BUSHING, 2” X ¼” 1 VA12JBQ < < < <
10 COCK, DRAIN 1 VV514 < < < <
11 PRESSURE SWITCH 1 VSA362 < < < <
12 PRESSURE SWITCH, TREE 1 CCC1677 < < < <
13 DRAIN COCK 1 VV552 < < < <
14 SAFETY VALVE 1 VV404 < < < <
15 PRESSURE GAUGE, AIR 1 VA334 < < < <
16 STUD, MOUNTING 4 CC1814 < < < <
17 WASHER, RUBBER 4 VH1320 < < < <
18 NUT, 5/16-18 4 VH1536 < < < <
19 TUBING, ¼” 1 OFF909 < < < <
20 ELBOW, 90º 1 VA15ACE < < < <
21 CHECK VALVE 1 VV809 < < < <
22 COMPRESSION CONNECTOR 1 VA14EHE < < < <
23 V-BELT 1 VD323 < < < <
24 BRACKET BELTGUARD TOP 1 CAF2526 < < < <
25 BELT GUARD CLIPS 5 CAF2488 < < < <
26 HHCS ¼-20 X 1/2LG 12 VH51FE1 < < < <
27 FITTING, COMPR, ½ X ¾ 1 VA14DHE < < < <
28 FILTER, INTAKE ASSEMBLY 1 VA1166 < < < <
29 FILTER, INTAKE ELEMENT 1 VA1163 < < < <
30 NUTS, WIRE BELT GUARD 2 VH515 < < < <
31 BOLT, CARRIAGE 3 VH10KH < < < <
32 WASHER, RUBBER 4 VH1321 < < < <
33 NUT 4 VH1537 < < < <
34 HHCS 5/16-18UNC X 1, MOUNTING
BELTGUARD TO FRAME (NOT SHOWN) 3 VH1108 < < < <
35 MOTOR BOLT 1 OFA299 < < < <
36 TAKE-UP, MOTOR BOLT 1 OFC256 < < < <
37 STARTER KIT, (OPTIONAL) 1 CY60N CY60P CY60M CY60L CY60Q
38 HP 1/8” ASME SAFETY VALVE 2 CCC1718 < < < <
* A2 = 1/60/230
* A9 = 3/60/200
* A3 = 3/60/230
* A4 = 3/60/460
* A8 = 3/60/575

CT SERIES
CAP 410
PAGE 10
EXPLODED VIEW, VERTICAL, 7 1/2HP, 80 GALLON – MODEL 755VT8

CT SERIES CAP 410
PAGE 11
PARTS LIST, VERTICAL
ITEM
NO. DESCRIPTION QTY
755VT8-A2*
7 ½ HP 755VT8-A *9
7 ½ HP 755VT8-A3*
7 ½ HP 755VT8-A4* 7 ½ HP 755VT8-A8* 7 ½ HP
1 COMPRESSOR CT 55 1 CCC1791 < < < <
2 MOTOR 1 VM1025 VM1028 VM1024 VM1024 VM1029
3 PULLEY 1 VDB339 < < < <
4 INNER SCREEN (BELT GUARD) 1 CAF2487 < < < <
5 OUTER BELT GUARD 1 CAF2486 < < < <
6 VERTICAL TANK 1 OQA218 < < < <
7 DISCHARGE PIPE CT 55 1 OFF911A < < < <
9 BUSHING, 2” X ¼” 1 VA12JBQ < < < <
10 COCK, DRAIN 1 VV514 < < < <
11 PRESSURE SWITCH 1 VSA360 < < < <
12 PRESSURE SWITCH, TREE 1 CCC1676 < < < <
13 DRAIN COCK 1 VV514 < < < <
14 SAFETY VALVE 1 VV404 < < < <
15 PRESSURE GAUGE, AIR 1 VA302 < < < <
16 STUD MTG, 5/16 –18 X 2-1/2”LG 4 CCC1814 < < < <
17 WASHER, RUBBER 4 VH1320 < < < <
18 NUT, 5/16-18 4 VH1536 < < < <
19 TUBING, ¼” 1 OFF909 < < < <
20 ELBOW, 90º 1 VA15ACE < < < <
21 CHECK VALVE 1 VV836 < < < <
22 COMPRESSION CONNECTOR 1 VA14EHE < < < <
23 V-BELT 1 VD323 < < < <
24 BRACKET BELTGUARD TOP 1 CAF2526 < < < <
25 BELT GUARD CLIPS 5 CAF2488 < < < <
26 HHCS ¼-20 X 1/2LG 12 VH51FE1 < < < <
27 FITTING, COMPR., ½ X 3/4 1 VA14DHE < < < <
28 FILTER, INTAKE ASSY 1 VA1166 < < < <
29 FILTER, INTAKE ELEMENT 1 VA1163 < < < <
30 NUTS, WIRE BELT GUARD 2 VH515 < < < <
31 BOLT, 3/8-1” LG. 3 VH10KH < < < <
32 WASHER, RUBBER 4 VH1321 < < < <
33 NUT 4 VH1537 < < < <
34 HHCS 5/16-18UNC X 1, MOUNTING
BELTGUARD TO FRAME (NOT SHOWN) 3 VH12HH < < < <
35 MOTOR BOLT 1 OFA299 < < < <
36 TAKE-UP, MOTOR BOLT 1 OFC256 < < < <
37 STARTER KIT, (OPTIONAL) 1 CY60K CY60R CY60J CY60I CY60S
38 HP 1/8” ASME SAFETY VALVE 2 CCC1718 < < < <
* A2 = 1/60/230
* A9 = 3/60/200
* A3 = 3/60/230
* A4 = 3/60/460
* A8 = 3/60/575

CT SERIES
CAP 410
PAGE 12
EXPLODED VIEW, VERTICAL, 7 1/2HP, 80 GALLON – MODEL 775VT8

CT SERIES CAP 410
PAGE 13
PARTS LIST, VERTICAL
* A2 = 1/60/230
* A3 = 3/60/230
* A4 = 3/60/460
* A8 = 3/60/575
* A9 = 3/60/200
ITEM
NO. DESCRIPTION QTY.
775VT8-A2*
7 ½ HP 775VT8-A3* 7 ½ HP 775VT8-A4* 7 ½ HP 775VT8-A8* 7 ½ HP 775VT8-A9* 7 ½ HP
1 COMPRESSOR CT 75 1 CCC1792 < < < <
2 MOTOR 1 VM1025 VM1024 VM1024 VM1029 VM1028
3 PULLEY 1 VDB340 < < < <
4 INNER SCREEN (BELT GUARD) 1 CAF2487 < < < <
5 OUTER BELT GUARD 1 CAF2486 < < < <
6 VERTICAL TANK 1 OQA218 < < < <
7 DISCHARGE PIPE CT 75 1 OFF910A < < < <
8 BUSHING, 2 X ¼” 1 VA12JBQ < < < <
9 COCK, DRAIN 1 VV514 < < < <
10 FITTING, COMPRESSION 1 VA14EJE < < < <
11 PRESSURE SWITCH 1 VSA362 < < < <
12 PRESSURE SWITCH, TREE 1 CCC1677 < < < <
13 DRAIN COCK 1 VV552 < < < <
14 SAFETY VALVE 1 VV404 < < < <
15 PRESSURE GAUGE, AIR 1 VA334 < < < <
16 STUD, MTG 4 CCC1814 < < < <
17 WASHER, RUBBER 4 VH1320 < < < <
18 NUT, 5/16-18 4 VH1536 < < < <
19 TUBING, ¼” 1 OFF909 < < < <
20 ELBOW, 90º 1 VA15ACE < < < <
21 CHECK VALVE 1 VV809 < < < <
22 COMPRESSION CONNECTOR 1 VA14EJE < < < <
23 V-BELT 2 VD351 < < < <
24 BRACKET BELTGUARD TOP 1 CAF2525 < < < <
25 BELT GUARD CLIPS 5 CAF2488 < < < <
26 HHCS ¼-20 X 1/2LG, SERRATED 10 VH51FE1 < < < <
27 FILTER, INTAKE ASSY. 1 VA1164 < < < <
28 FILTER, INTAKE ELEMENT 1 VA1165 < < < <
29 NUTS, WIRE BELT GUARD 2 VH515 < < < <
30 BOLT 3 VH10KH < < < <
31 WASHER, RUBBER 4 VH1321 < < < <
32 NUT 4 VH1537 < < < <
33 HHCS 5/16-18UNC X 1,
(MTG BELTGUARD TO FRAME) 3 VH1108 < < < <
34 MOTOR BOLT 1 OFA299 < < < <
35 TAKE-UP, MOTOR BOLT 1 OFC256 < < < <
36 STARTER KIT, (OPTIONAL) 1 CY60H CY60E CY60F CY60S CY60R
37 HP 1/8” ASME SAFETY VALVE 2 CCC1718 < < < <

CT SERIES
CAP 410
PAGE 14
EXPLODED VIEW, VERTICAL, 10HP, 80 GALLON – MODEL 1075VT8

CT SERIES CAP 410
PAGE 15
PARTS LIST, VERTICAL
* A2 = 1/60/230
* A3 = 3/60/230
* A4 = 3/60/460
* A8 = 3/60/575
* A9 = 3/60/200
ITEM
NO. DESCRIPTION QTY.
1075VT8-A2*
10 HP 1075VT8-A3* 10 HP 1075VT8-A4* 10 HP 1075VT8-A8* 10 HP 1075VT8-A9* 10 HP
1 COMPRESSOR CT 75 1 CCC1792 < < < <
2 MOTOR 1 VM1107 VM1024 VM1024 VM1029 VM1028
3 PULLEY 1 VDA282A < < < <
4 INNER SCREEN (BELT GUARD) 1 CAF2487 < < < <
5 OUTER BELT GUARD 1 CAF2486 < < < <
6 VERTICAL TANK 1 OQA218 < < < <
7 DISCHARGE PIPE CT 75 1 OFF910A < < < <
9 BUSHING, 2 X ¼” 1 VA12JBQ < < < <
10 COCK, DRAIN 1 VV514 < < < <
11 PRESSURE SWITCH 1 VSA362 < < < <
12 PRESSURE SWITCH, TREE 1 CCC1677 < < < <
13 DRAIN COCK 1 VV552 < < < <
14 SAFETY VALVE 1 VV404 < < < <
15 PRESSURE GAUGE, AIR 1 VA334 < < < <
16 STUD, MTG 4 CCC1678 < < < <
17 WASHER, RUBBER 4 VH1320 < < < <
18 NUT, 5/16-18 4 VH1536 < < < <
19 TUBING, ¼” 1 OFF909 < < < <
20 ELBOW, 90º 1 VA15ACE < < < <
21 CHECK VALVE 1 VV809 < < < <
22 COMPRESSION CONNECTOR 1 VA14EJE < < < <
23 V-BELT 2 VD393 < < < <
24 BRACKET BELTGUARD TOP 1 CAF2525 < < < <
25 BELT GUARD CLIPS 5 CAF2488 < < < <
26 HHCS ¼-20 X 1/2LG, SERRATED 12 VH12FF1 < < < <
27 FITTING, ELBOW COMPRESSION
¾ NPT X 7/8”OD TUBE 1 VA15EJE < < < <
28 FILTER, INTAKE ASSY. 1 VA1164 < < < <
29 FILTER, INTAKE ELEMENT 1 VA1165 < < < <
30 NUTS, WIRE BELT GUARD 2 VH515 < < < <
31 BOLT 3 VH10KK1 < < < <
32 WASHER, RUBBER 4 VH1321 < < < <
33 NUT 4 VH1537 < < < <
34 HHCS 5/16-18UNC X 1, (NOT SHOWN)
(MTG BELTGUARD TO FRAME) 3 VH12HF1 < < < <
35 TAKE-UP, MOTOR BOLT 1 OF269 < < < <
36 MOTOR BOLT 1 OFA299 < < < <
37 STARTER KIT, (OPTIONAL) 1 CY60H CY60E CY60F CY60S CY60R
38 HP 1/8” ASME SAFETY VALVE 2 CCC1718 < < < <

CT SERIES
CAP 410
PAGE 16
EXPLODED VIEW, HORIZONTAL, 7 1/2HP, 120 GALLON – MODEL 775HT12

CT SERIES CAP 410
PAGE 17
PARTS LIST, HORIZONTAL
ITEM
NO. DESCRIPTION QTY
775HT12-A2*
7 1/2 HP 775HT12-A3* 7 1/2 HP 775HT12-A4* 7 1/2 HP 775HT12-A8* 7 1/2 HP 775HT12-A9* 7 1/2 HP
1 COMPRESSOR, CT 75 1 CCC1792 < < < <
2 MOTOR 1 VM1025 VM1024 VM1024 VM1008 VM1007
3 PULLEY 1 VDB340 < < < <
4 INNER SCREEN (BELT GUARD) 1 CAF2487 < < < <
5 OUTER BELT GUARD 1 CAF2486 < < < <
6 HORIZONTAL TANK 1 OFC320 < < < <
7 DISCHARGE PIPE CT 75 1 OFF910A < < < <
8 FILTER, INTAKE ASSEMBLY 1 VA1164 < < < <
9 FILTER, INTAKE ELEMENT 1 VA1165 < < < <
10 HHCS 5/16-18UNC X 1, MTG
BELTGUARD TO FRAME (NOT SHOWN) 3 VH1108 < < < <
11 STUD MOUNTING, 5/16 - 18 X 2-1/2 4 CCC1814 < < < <
12 WASHER, RUBBER 4 VH1320 < < < <
13 NUT 4 VH1536 < < < <
14 ELBOW COMPRESSION FITTING,
3/4 X 7/8OD 1 VA14EJE < < < <
15 V-BELT 2 VD323 < < < <
16 BOLT, CARRIAGE 3 VH10KM < < < <
17 WASHER, RUBBER 4 VH1321 < < < <
18 NUT 4 VH1537 < < < <
19 MOTOR TAKE UP-BOLT 1 OF269 < < < <
20 BOLT, MOTOR 1 OFA299 < < < <
21 COMPRESSION CONNECTOR 1 VA14EJE < < < <
22 CHECK VALVE 1 VV817 < < < <
23 ELBOW 1 VA15ACE < < < <
24 BRACKET BELTGUARD TOP 1 CAF2525 < < < <
25 BELT GUARD CLIPS 5 CAF2488 < < < <
26 HHCS ¼-20 X 1/2LG, SERRATED 12 VH51FE1 < < < <
27 WASHER, FLAT 1 VH32P < < < <
28 DRAIN COCK 1 VV514 < < < <
29 NUTS, WIRE BELT GUARD 2 VH515 < < < <
30 MANIFOLD 1 CCC1681 < < < <
31 SAFETY VALVE, 3/8 MPT ASME 1 VV404 < < < <
32 PRESSURE GAUGE, AIR 1 VA302 < < < <
33 PRESSURE SWITCH 1 VSA362 < < < <
34 TUBING, ¼” 1 OFB892CD < < < <
35 VALVE, BALL 1 VV553 < < < <
36 STARTER KIT (OPTIONAL) 1 CY60AA CY60AB CY60AC CY60AD CY60AE
37 HP 1/8” ASME SAFETY VALVE 2 CCC1718 < < < <
* A2 = 1/60/230
* A3 = 3/60/230
* A4 = 3/60/460
* A8 = 3/60/575
* A9 = 3/60/200

CT SERIES
CAP 410
PAGE 18
EXPLODED VIEW, HORIZONTAL, 10HP, 120 GALLON –MODEL 1075HT12