Tuthill T650 Instruction manual

TUTHILL
T650 / T950H
25 PSI / 1.72 BAR (T650)
29 PSI / 2.2 BAR (T950H)
WARNING
DO NOT OPERATE
BEFORE READING MANUAL
Truck Blower
INSTALLATION
OPERATION
MAINTENANCE
MANUAL
1/2010
Tuthill Vacuum & Blower Systems
4840 West Kearney Street
Springfield, Missouri USA 65803-8702
o800.825.6937 f417.865.2950
www.tuthillvacuumblower.com

2
1. Do not operate before reading the enclosed instruction manual.
2. Use adequate protection, warning and safety equipment necessary to protect against hazards involved in installation and
operation of this equipment.
SAFETY INSTRUCTIONS
SAFETY WARNING
• Keep hands and clothing away from rotating machinery, inlet and discharge openings.
• Blower and drive mounting bolts must be secured.
• Drive belts and coupling guards must be in place.
• Noise level may require ear protection.
• Blower heat can cause burns if touched.
NOTICE
The above safety instruction tags were attached to your unit prior to shipment. Do not remove, paint over or obscure in any manner. Failure
to heed these warnings could result in serious bodily injury to the personnel operating and maintaining this equipment.
SAFETY PRECAUTIONS
FOR EQUIPMENT COVERED SPECIFICALLY OR INDIRECTLY IN THIS INSTRUCTION BOOK, IT IS IMPORTANT
THAT ALL PERSONNEL OBSERVE SAFETY PRECAUTIONS TO MINIMIZE THE CHANCES OF INJURY. AMONG MANY
CONSIDERATIONS, THE FOLLOWING SHOULD PARTICULARLY BE NOTED:
• Rotating shafts can be dangerous. You can snag clothes, skin, hair, hands, etc. This can cause serious injury or death.
• Do not work under the vehicle when the engine is running.
• Do not work on a shaft (with or without a guard) when the engine is running.
• Do not engage or disengage driven equipment by hand from under the vehicle when the engine is running.
• In order to avoid becoming entangled, install the power take off and/or shaft behind the frame rail, tanks, battery box, etc.
• If power take off and/or shaft are still exposed after installation, install a guard.
• Install a support strap when servicing a drive shaft to prevent personal injury.
A SERIOUS OR FATAL INJURY CAN OCCUR . . .
• if you lack proper training
• if you fail to follow proper procedures
• if you do not use proper tools and safety equipment
• if you assemble drive line components improperly
• if you use incompatible drive line components
• if you use worn-out or damaged drive line components
• if you use drive line components in a non-approved application.
THIS MANUAL CONTAINS SAFETY INSTRUCTIONS. READ, UNDERSTAND AND FOLLOW THIS MANUAL.
• Get proper training
• Learn and follow safe operating procedures
• Use proper tools and safety equipment
• Use proper components in good condition
WARNING
Keep body and
clothing away from
machine openings.
CAUTION
Do not
operate without
guards in place.
CAUTION
Do not
touch hot
surfaces.
WARNING
Keep body
and clothing away
from drive shaft.

3
IMPORTANT
In order to assure you of the full benefits of our product warranty, please complete, tear out and return
the warranty registration card located on the back cover of this manual, or you can register your product online at:
http://www.tuthillvacuumblower.com/index.cfm/contact-us/product-registration/
TUTHILL WORLDWIDE CONTACTS
TUTHILL VACUUM & BLOWER SYSTEMS UK
Birkdale Close
Manners Industrial Estate
Ilkeston, Derbyshire DE7 8YA
UNITED KINGDOM
Phone: [phone]
TUTHILL ASIA - PACIFIC
Unit 2
21 Lacey Street
Croydon, Victoria 3136
AUSTRALIA
Phone: [phone]
TUTHILL CHINA
No 88, JiaXiu Road, Nanxiang Town,
JiaDing District
Shanghai, PRC. 201802
CHINA
Phone: [phone]
TUTHILL NORTHERN MEXICO
Chula Vista 305
Col. Linda Vista
Guadalupe, N.L. 67130
MEXICO
Phone: [phone]
TUTHILL SOUTHERN MEXICO
Av. El Rosario 1025
Col. El Rosario
Azcapotzalco, D.F. 02430
MEXICO
Phone: [phone]
TUTHILL ARGENTINA
Bernardo de Irigoyen 962
B1878DPT Quilmes, Buenos Aires
ARGENTINA
Phone: [phone]
TABLE OF CONTENTS
SAFETY PRECAUTIONS 2
INTRODUCTION 4
INSTALLATION 4
SAFETY CHECKLIST 4
PTO SELECTION FOR TRANSMISSION 4
ENGINE SPEED 4
OPERATION 4
SPECIFICATIONS TABLE 4
PERFORMANCE CURVES 5
OPERATING THE BLOWER 5
BLOWER SPECIFICATIONS 5
LUBRICATION 6
FILLING PROCEDURE 6
PREVENTATIVE MAINTENANCE 6
KIT COMPONENTS 6
PRESSURE RELIEF VALVE 6
AIR FILTER 6
CHECK VALVE 7
SUCTION & DISCHARGE PIPING 7
MUFFLERS & DISCHARGE FILTRATION 7
VACUUM VALVE 7
PTO DRIVE SHAFT 7
ASSEMBLY INSTRUCTIONS AND DRAWINGS 8-13
T650/T950H ASSEMBLY INSTRUCTIONS — STAGE ONE 8
T650/T950H ASSEMBLY DRAWING AND PARTS LIST — STAGE ONE 9
T650/T950H ASSEMBLY INSTRUCTIONS — STAGE TWO 10
T650/T950H ASSEMBLY DRAWING AND PARTS LIST — STAGE TWO 11
T650/T950H ASSEMBLY INSTRUCTIONS — STAGE THREE 12
T650/T950H ASSEMBLY DRAWING AND PARTS LIST — STAGE THREE 13
DIMENSIONAL AND EXPLODED VIEW DRAWINGS 14-15
T650/T950H EXPLODED VIEW DRAWING AND PARTS LIST 14
T650/T950H DIMENSIONAL DRAWING 15
WARRANTY – TRUCK BLOWERS 18

4
INTRODUCTION
CONGRATULATIONS on your purchase of a new Tuthill T650/T950H Truck Blower. Please examine the blower for shipping damage,
and if any damage is found, report it immediately to the carrier. If the blower is to be installed at a later date make sure it is stored in
a clean, dry location and rotated regularly. Make sure covers are kept on all openings. If blower is stored outdoors be sure to protect
it from weather and corrosion.
Tuthill Truck Blowers are built to exacting standards and if properly installed and maintained will provide many years of reliable
service. We urge you to take time to read and follow every step of these instructions when installing and maintaining your blower.
INSTALLATION
SAFETY CHECKLIST (TO BE COMPLETED PRIOR TO BLOWER OPERATION)
TRUCK NUMBER
GEARBOX NUMBER
P.T.O. NUMBER
P.T.O. RATIO
BLOWER MODEL NUMBER
BLOWER SERIAL NUMBER
DATE INSTALLED
INSPECTED BY
FIs Tuthill mounting kit used?
FIs ratio and horsepower correct for PTO?
FMount PTO as per manufacturer’s recommendations and refill transmission.
FEnsure oil levels are at the center of the sight glass when blower is not running.
FWithout drive line connected, can blower can be rotated by hand?
FIs drive line installed at correct angle and phase with all fasteners secured?
FEnsure PTO rotates blower in correct direction indicated by arrow.
FAir inlet filter connected and located away from truck exhaust.
FRemove Camlock dust cap, discharge piping open to atmosphere.
FWith tractor engine at idle, slowly engage PTO. Check for correct rotation.
FSlowly bring blower up to operating speed.
FCheck for vibration, mechanical noise, oil leaks and mounting integrity.
FStop blower, connect blower discharge hose to trailer and run blower at operating pressure of trailer for 15 minutes at normal
speed.
FDoes relief valve operate correctly?
FDoes engine maintain correct RPM throughout test?
FIs correct engine speed label visible in cab?
PTO SELECTION FOR TRANSMISSION
Ensure blower speed and pressure required are adequate PTO horsepower and torque. (See Performance Curves on page 5)
ENGINE SPEED
Engine speed must be constant when blower is in the operating cycle. A constant speed governor or throttle control system must
be installed to assure the proper blower operation.
OPERATION
SPECIFICATIONS TABLE
MODEL AIR FLOW RANGE MAXIMUM PRESSURE MAXIMUM VACUUM RPM RANGE
T650 225 - 565 (CFM) 25 (PSIG) 17” (Hg) 1000 - 2000
T950H 400 - 1000 (m³/h) 2.2 (Bar g)
.43 (Bar Abs.) 1000 - 2100
1. Reduce the maximum operating pressure by 1 PSI (.07 Bar) for each 2000 feet (610 meters) of elevation above sea level.
(Example: At an altitude of 4000 feet (1219 meters) above sea level, the maximum working pressure of the blower will
decrease by 2 PSI (.138 Bar).
2. Specifications are at 14.7 PSIA (1014 mBar) and 70° F (20° C) standard conditions

5
PERFORMANCE CURVES
OPERATING THE BLOWER
1. Inspect blower mounting, drive line, PTO, and air lter for integrity.
2. Remove Camlock dust cap and connect the hot air hose.
3. Follow trailer instructions regarding product hose connection and valve operation.
4. Slowly engage PTO with engine at idle, and blower unloaded. Bring up to operating speed and lock engine at recommended
speed (Shown in cab)
5. Unload trailer as per trailer manufacturer’s recommendation and do not exceed maximum tank pressure or maximum blower
pressure.
6. While discharging, visually check blower for vibration, mechanical noise or excessive heat.
7. If relief valve is opening, adjust proportioning valve to reduce tank pressure.
8. Reduce pressure to zero as per trailer manufacturer’s instructions.
9. Disengage PTO
10. Disconnect blower hose and replace Camlock dust cap.
WARNING: The blower and accessories become hot and will cause serious skin burns on contact. Rotating
machinery is dangerous. Always wear ear protection when in close proximity to the blower.
BHP
AIRFLOW BASED UPON
INLET CONDITIONS OF:
14.7 PSIA & 70° F
0
10
20
30
40
50
60
600
550
500
450
400
350
300
250
1000 1250 1500 1750 2000 2250
PSIG
25
20
18
15
12
10
PSIG
10
15
20
25
CFM
RPM
T650 PRESSURE CURVE
Airflow at Inlet (CFM)
Horsepower (BHP)
1000 1200 1400 1600 1800 2000 2200
10
14
17
17
14
10
0
5
10
15
20
25
30
200
250
300
350
400
450
500
550
600
RPM
BHP
AIRFLOW BASED UPON
INLET: 70° F
DISCHARGE: 29.92” Hg Abs.
"Hg
"Hg
CFM
T650 VACUUM CURVE
Airflow at Inlet (CFM)
Horsepower (BHP)
AIR FLOW AT
STANDARD INLET
CONDITIONS
1013mb + 20°C
kW
0
10
20
30
40
50
60
0.5
1
1.5
2
2.2
bar
0.5
1
1.5
2
2.2
bar
400
500
600
700
800
900
1000
1100
m³/h
1200 1400 1600 1800 2000 22001000
RPM
T950H PRESSURE CURVE
Airflow at Inlet (m³/h)Kilowatts (kw)
350
475
575
575
475
350
AIRFLOW BASED UPON
INLET: 20°C
DISCHARGE: 1 BARA
DENSITY @ 20°C & 1 BARA: 1.2 KG/M³
kW
0
5
10
15
20
25400
300
500
600
700
800
900
1000
1100
m³/h
1200 1400 1600 1800 2000 22001000
mbar
mbar
RPM
T950H VACUUM CURVE
Airflow at Inlet (m³/h)Kilowatts (kw)

6
LUBRICATION
• Every Tuthill blower is factory tested, oil drained, and shipped dry. The oil reservoir must be
filled to the proper level before operation.
• Each T650 and T950H is supplied with sufficient Tuthill PneuLube™ ISO 32 synthetic oil.
• Before filling the blower, refer to Figure 1. The lubrication capacities shown are for reference
only and are based on filling from dry condition. A sight glass should be used to determine oil
level.
• Always follow the Filling Procedure outlined below.
• Never mix oil types or grades in your Tuthill Truck Blower. This could cause gear and bearing
failure.
FILLING PROCEDURE
1. Remove fill plugs.
2. SLOWLY pour oil through fill until oil appears up to the center of the oil sight glass.
3. Verify oil level is at proper level in sight glasses.
4. Replace fill plugs.
CAUTION: Check sight glass to ensure that oil levels are correct before starting.
WARNING: NEVER ATTEMPT TO CHANGE OIL WHILE THE BLOWER IS IN OPERATION. Oil level must be checked
while the blower is not running and on a level surface.
PREVENTATIVE MAINTENANCE
A newly installed blower should be checked frequently during the first month of operation, especially lubrication. Check oil level and
add oil as needed. Complete oil changes are recommended every 500 operating hours, or more frequently depending on the type
of oil and oil operating temperatures. The following is recommended as a minimum maintenance program. An oil analysis program
is recommended.
DAILY WEEKLY MONTHLY SEMI-ANNUALLY
1. Check and maintain
oil level, and add oil
as necessary.
2. Check air filter
restriction indicator
1. Clean air filter. Clogged air filters can
seriously affect the efficiency of the blower
and cause overheating and oil usage.
2. Check relief valve to assure it is operating
properly.
1. Inspect the entire
system for leaks.
2. Inspect condition
of oil and change if
necessary.
1. Inspect the drive line
bearings.
2. Change oil even if 500
operating hours has not
been reached.
KIT COMPONENTS
PRESSURE RELIEF VALVE
• The relief valve must be sized for the correct air flow and pressure rating. Install the valve as close to the blower as possible
and before the check valve.
• Ensure that pipe sealant is used on the threads to seal against air leakage.
AIR FILTER
• The filter should be selected to suit the air flow requirement of the application.
• Always fit an air filter restriction indicator set at 22” H2O (55 mBar).
CAUTION: An undersized air filter will cause the blower to operate at higher temperatures. This can cause blower
to overheat, causing damage.
BACKUP CHARACTER SET
Pantone 314C
AAA
BBB
CCC
DDD
EEE
FFF
GGG
HHH
JJJ
KKK
LLL
MMM
NNN
PPP
QQQ
RRR
SSS
TTT
UUU
VVV
WWW
XXX
YYY
ZZZ
1265176101 126 151 176 201 226 251276 301326 35137
6
2275277102 127 152 177 202 227 252277 302327 35237
7
3285378103 128 153 178 203 228 253278 303328 35337
8
4295479104 129 154 179 204 229 254279 304329 35437
9
5305580105 130 155 180 205 230 255280 305330 35538
0
6315681106 131 156 181 206 231 256281 306331 356 381
7325782107 132 157 182 207 232 257282 307332 35738
2
8335883108 133 158 183 208 233 258283 308333 35838
3
9345984109 134 159 184 209 234 259284 309334 35938
4
10 35 60 85 110135 160 185 210 235 260285 310335 36038
5
11 36 61 86 111136 161 186 211 236 261286 311336 36138
6
12 37 62 87 112137 162 187 212 237 262287 312337 36238
7
13 38 63 88 113138 163 188 213 238 263288 313338 36338
8
14 39 64 89 114139 164 189 214 239 264289 314339 36438
9
15 40 65 90 115140 165 190 215 240 265290 315340 36539
0
16 41 66 91 116141 166 191 216 241 266291 316341 366 391
17 42 67 92 117142 167 192 217 242 267292 317342 36739
2
18 43 68 93 118143 168 193 218 243 268293 318343 36839
3
19 44 69 94 119144 169 194 219 244 269294 319344 36939
4
20 45 70 95 120145 170 195 220 245 270295 320345 37039
5
21 46 71 96 121146 171 196 221 246 271296 321346 37139
6
22 47 72 97 122147 172 197 222 247 272297 322347 37239
7
23 48 73 98 123148 173 198 223 248 273298 323348 37339
8
24 49 74 99 124149 174 199 224 249 274299 324349 37439
9
25 50 75 100125 150 175 200 225 250 275300 325350 37540
0
AAA
BBB
CCC
DDD
EEE
FFF
GGG
HHH
JJJ
KKK
LLL
MMM
NNN
PPP
QQQ
RRR
SSS
TTT
UUU
VVV
WWW
XXX
YYY
ZZZ
AAA
BBB
CCC
DDD
EEE
FFF
GGG
HHH
JJJ
KKK
LLL
MMM
NNN
PPP
QQQ
RRR
SSS
TTT
UUU
VVV
WWW
XXX
YYY
ZZZ
1265176101 126 151 176201 226251 276301 326351 376
2275277102 127 152 177202 227252 277302 327352 377
3285378103 128 153 178203 228253 278303 328353 378
4295479104 129 154 179204 229254 279304 329354 379
5305580105 130 155 180205 230255 280305 330355 380
6315681106 131 156 181206 231256 281306 331356 381
7325782107 132 157 182207 232257 282307 332357 382
8335883108 133 158 183208 233258 283308 333358 383
9345984109 134 159 184209 234259 284309 334359 384
10 35 60 85 110 135 160 185210 235260 285310 335360 385
11 36 61 86 111 136 161 186211 236261 286311 336361 386
12 37 62 87 112 137 162 187212 237262 287312 337362 387
13 38 63 88 113 138 163 188213 238263 288313 338363 388
14 39 64 89 114 139 164 189214 239264 289314 339364 389
15 40 65 90 115 140 165 190215 240265 290315 340365 390
16 41 66 91 116 141 166 191216 241266 291316 341366 391
17 42 67 92 117 142 167 192217 242267 292317 342367 392
18 43 68 93 118 143 168 193218 243268 293318 343368 393
19 44 69 94 119 144 169 194219 244269 294319 344369 394
20 45 70 95 120 145 170 195220 245270 295320 345370 395
21 46 71 96 121 146 171 196221 246271 296321 346371 396
22 47 72 97 122 147 172 197222 247272 297322 347372 397
23 48 73 98 123 148 173 198223 248273 298323 348373 398
24 49 74 99 124 149 174 199224 249274 299324 349374 399
25 50 75 100 125 150 175 200225 250275 300325 350375 400
AAA
BBB
CCC
DDD
EEE
FFF
GGG
HHH
JJJ
KKK
LLL
MMM
NNN
PPP
QQQ
RRR
SSS
TTT
UUU
VVV
WWW
XXX
YYY
ZZZ
BACKUP CHAR
A
Pantone 314C
AAA
BBB
CCC
DDD
EEE
FFF
GGG
HHH
JJJ
KKK
LLL
MMM
NNN
PPP
QQQ
RRR
SSS
TTT
UUU
VVV
WWW
XXX
YYY
ZZZ
1265176101 126 151 176 20
1
2275277102 127 152 177 20
2
3285378103 128 153 178 20
3
4295479104 129 154 179 20
4
5305580105 130 155 180 20
5
6315681106 131 156 181 20
6
7325782107 132 157 182 20
7
8335883108 133 158 183 20
8
9345984109 134 159 184 20
9
10 35 60 85 110135 160 185 21
0
11 36 61 86 111136 161 186 21
1
12 37 62 87 112137 162 187 21
2
13 38 63 88 113138 163 188 21
3
14 39 64 89 114139 164 189 21
4
15 40 65 90 115140 165 190 21
5
16 41 66 91 116141 166 191 21
6
17 42 67 92 117142 167 192 21
7
18 43 68 93 118143 168 193 21
8
19 44 69 94 119144 169 194 21
9
20 45 70 95 120145 170 195 22
0
21 46 71 96 121146 171 196 22
1
22 47 72 97 122147 172 197 22
2
23 48 73 98 123148 173 198 22
3
24 49 74 99 124149 174 199 22
4
25 50 75 100125 150 175 200 22
5
AAA
BBB
CCC
DDD
EEE
FFF
GGG
HHH
JJJ
KKK
LLL
MMM
NNN
PPP
QQQ
RRR
SSS
TTT
UUU
VVV
WWW
XXX
YYY
ZZZ
AAA
BBB
CCC
DDD
EEE
FFF
GGG
HHH
JJJ
KKK
LLL
MMM
NNN
PPP
QQQ
RRR
SSS
TTT
UUU
VVV
WWW
XXX
YYY
ZZZ
1265176101 126 151 176201
2275277102 127 152 17720
2
3285378103 128 153 17820
3
4295479104 129 154 17920
4
5305580105 130 155 18020
5
6315681106 131 156 18120
6
7325782107 132 157 18220
7
8335883108 133 158 18320
8
9345984109 134 159 18420
9
10 35 60 85 110 135 160 18521
0
11 36 61 86 111 136 161 186211
12 37 62 87 112 137 162 18721
2
13 38 63 88 113 138 163 18821
3
14 39 64 89 114 139 164 18921
4
15 40 65 90 115 140 165 19021
5
16 41 66 91 116 141 166 19121
6
17 42 67 92 117 142 167 19221
7
18 43 68 93 118 143 168 19321
8
19 44 69 94 119 144 169 19421
9
20 45 70 95 120 145 170 19522
0
21 46 71 96 121 146 171 196221
22 47 72 97 122 147 172 19722
2
23 48 73 98 123 148 173 19822
3
24 49 74 99 124 149 174 19922
4
25 50 75 100 125 150 175 20022
5
AAA
BBB
CCC
DDD
EEE
FFF
GGG
HHH
JJJ
KKK
LLL
MMM
NNN
PPP
QQQ
RRR
SSS
TTT
UUU
VVV
WWW
XXX
YYY
ZZZ
0.9 Quarts
(0.85 Liters)
3 Quarts
(2.8 Liters)
Figure 1.
Lubrication Capacities
ROUND
SUMP
PREVIOUS
DESIGN
SQUARE
SUMP
CURRENT
DESIGN

7
CHECK VALVE
• Minimum restriction for application and mounted downstream of the relief valve.
• The check valve should be sized for maximum air flow (CFM).
SUCTION & DISCHARGE PIPING
• All piping should be free and clear of any welding slag or foreign material.
• The suction piping requirements is a minimum of 4’’ (100 mm) diameter for proper flow to the blower.
• The discharge piping is recommended to be 3” (80 mm) diameter.
CAUTION: Do not use a rubber elbow in the suction line during vacuum operation. The elbow will fail causing the
blower to overheat. This will cause damage to the blower.
MUFFLERS & DISCHARGE FILTRATION
• Minimum restriction for application
• Mount downstream of relief valve.
CAUTION: For food-grade applications, always install a properly sized food-grade discharge filter downstream of
the muffler (between muffler and trailer).
VACUUM VALVE
• A vacuum valve and filter must be installed to properly protect
the blower from overheating while vacuum loading.
• Size for proper air flow and vacuum rating.
• This valve should be located before the blower inlet air filter.
Normally this valve is mounted on the trailer.
PTO DRIVE SHAFT
• Blower drive shaft and PTO output shaft must be parallel and
in phase. Maintain axis within one degree in vertical plane to
ensure low vibration during operating conditions.
• Use a minimum of a 1300 series (SAE 1300 or DIN 100) drive
shaft that has been correctly balanced at the operating RPM.
• Do not force yokes onto the blower drive shaft or the PTO
output shaft.
• T650 drive shaft is 1 5/8” diameter with a 3/8” keyway and
2-9/16” inches long.
• T950H drive shaft is 40 mm diameter with a 12 mm keyway
and 65 mm long.
• Refer to Figure 2 to ensure that the drive shaft is at the
proper angle.
• A “U” bolt hanger (Figure 3) should be installed to prevent the
drive shaft from damaging the blower or PTO if the slip yoke
comes apart. The slip joint should be half compressed. This
will also stop the drive shaft from dropping to the ground, and
causing potential thrust damage to the blower.
DRIVE SHAFT ANGLE
(Horizontal Plane)
SPEED ANGLE
1250 RPM 12 Degrees
1650 RPM 10 Degrees
2000 RPM 8 Degrees
THE ANGLE OF THE
DRIVE SHAFT SHOULD
NOT EXCEED 12°
Figure 2. Drive Shaft Angle
Figure 3. U Bolt Hanger Installation

8
T650/T950H ASSEMBLY INSTRUCTIONS — STAGE ONE
The numbers in parentheses correspond with the drawing on the facing page.
1. PREPARE END PLATES (5).
2. INSTALL PLUMBING FOR END PLATE (FROM STAGE TWO DRAWINGS (21)(22)(23)(24)(25))
2.1. Install elbows and cap screws.
2.2. Install sight glasses and plugs.
3. PREPARE HOUSING
3.1. Install plugs.
4. PREPARE ROTORS
4.1. Hone lobes.
4.2. Sand.
5. POSITION/INSTALL ROTORS
5.1. Place male rotor (4) to right side of fixture (1) plate so that it aligns with the drive shaft.
5.2. Place female rotor (3) in place.
5.3. Make sure shorter shoulder on each rotor is facing upward.
5.4. Place endplate (5) over rotors.
5.5. TAKE A MEASURE… Check with feeler gauge to ensure that rotors are flush with end cover.
5.6. TAKE A MEASURE… Seal shoulder must be greater than endplate bore shoulder by .005+.
5.7. TAKE A MEASURE… Measure step from end of shaft to each side of bearing sleeve and each side of bearing
surface and do calculation to find mean. Shim size is to be determined for both male rotor and female rotor.
Average = (left + right)/2
Shim Size = 0.003-average
6. INSTALL SEALS, BEARINGS AND SHIMS – END PLATE
6.1. Oil rotor shafts and inner race (all components).
6.2. Load O-rings into seal carrier
6.3. Press seals (6) into place (RED) right seal male rotor: (BLUE) left seal female rotor.
6.4. TAKE A MEASURE… Seal shoulder must be less than or no greater than .001 above step in end plate.
6.5. Oil and install the roller bearings (7) flange down; it is best to install one side at a time. Start with either male or
female. NOTE: It is very important that the bearings are started straight!
6.6. Install shims (8) – if required, adjust height as calculated previous.
6.7. Install dummy bearing – dummy bearing should be approximately 0.005 above endplate.
6.8. Install bearing retainer and torque bolts.
6.9. TAKE A MEASURE… measure clearances between rotor and end plate. Clearances should be between 0.0015
and 0.0020.
6.10. If clearances are out of specification, then remove retainer and dummy bearings and add or remove shims. Recheck
clearances between rotor and end plate as required. Repeat until within specification.
6.11. Install ball bearings (9). First install ball bearing race to rotor, then add ball bearing components with numbers and
asterisk facing up. NOTE: The ball bearings should be slightly above the endplate.
6.12. Install retainers (10) with cap screws (11) to hold in place.
7. INSTALL DRIVEN GEAR
7.1 Install gear spacers (12) (13).
7.2. Prep keyway by beveling the edges to allow key to fit better in shaft
7.3. Install keys (14). Dress key with stone. DO NOT USE A STEEL HAMMER TO DRIVE KEY ONTO SHAFT!!
PRESS THE KEY INTO THE SHAFT.
7.4. Install gear (15) onto shaft in press, (pre-lube shaft) insure gear is pressed flush with shoulder of shaft!!!
7.5. TAKE A MEASURE… measure rotor clearances and record. It is critical that endplate to rotor clearance is between
0.0015 and 0.0020.
Assembly Instructions are continued on page 10.

9
T650/T950H ASSEMBLY DRAWING AND PARTS LIST — STAGE ONE
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NNN
PPP
QQQ
RRR
SSS
TTT
UUU
VVV
WWW
XXX
YYY
ZZZ
16
17
15
14
10
9
6
2
4
1
3
5
7
8
11
12
13
ITEM NO. PART NUMBER DESCRIPTION QTY.
1 ASSEMBLY PLATE — 1
2LEVELING TOOL — 1
3 81052 ROTOR MALE 131 MM 1
4 81053 ROTOR FEMALE 121 MM 1
5 81007 ENDPLATE DRIVE END 1
6 1730X-2 LEFT OR RIGHT HAND SEAL ASSEMBLY 2
7 30410-207 BRG, ROLL CYL 2
8 SHIM SHIMS VARIES
9 81020-207 BRG, QJ BALL 2
10 81054 RETAINER BEARING DISCH END 2
11 80057-16 SCREW, CAP, SOC HEAD M6 6
12 81024-30 SPACER, GEAR 1
13 81024-31 SPACER, GEAR 1
14 80051-12 KEY 8MM × 7MM 1
15 81015 GEAR DRIVE MALE 1
16 81027 WASHER ROTOR 2
17 80058 SCREW, CAP, SOC HEAD M8 2

10
T650/T950H ASSEMBLY INSTRUCTIONS — STAGE TWO
The numbers in parentheses correspond with the drawing on the facing page.
8. INSTALL HOUSING
8.1. Install dowels (2) in housing.
8.2. Lower housing (3) onto rotors.
8.3. Tighten housing bolts (4).
8.4. TAKE A MEASURE… Visually check rotor-to-housing clearance to make sure rotor shoulder is above housing
bore on inlet end.
9. INSTALL SEALS AND BEARINGS - HOUSING
9.1. Install seals (5) so that right seal (red) goes on female rotor and left seal (blue) presses on male rotor.
9.2. Install roller bearings (6): it is important that the numbers and flange are face out.
9.3. Install retainer (7) and torque cap screws (8) to 108 in-lbs. The female bearing retainer has the tube clamp.
10. INSTALL FIRST TIMING GEAR
10.1. Install gear key (13).
10.2. … check thickness of spacer. Install gear spacer (12).
10.3. Install small gear (18) on male rotor.
11. INSTALL OIL AND TUBING SYSTEM FOR HOUSING (9)(10)(11).
12. INSTALL SECOND TIMING GEAR AND HUB
12.1. Install gear key (13).
12.2. TAKE A MEASURE… check thickness of spacer. Install gear spacer (12).
12.3. Install two-piece large gear (14)(15) so that ½ of the bolthole is showing on the right side. Install on female rotor with
key.
12.4. TAKE A MEASURE… Install .002 shim between any lobes. Check all lobes for tightest lobe and set it at .001
clearances. Check interlobe clearance and record.
12.5. Install timing gear bolts (16)(17).
12.6. Install timing gear retainer washer (19) and cap screw (20).
12.7. Bend locking tabs on rotor nuts.
Assembly Instructions are continued on page 12.

11
26 17 16 15 13 14 9 7
832 TABLE TOP
22
21
23
25
11
4
5
1018
20
27 6
12
19
24
ASSEMBLED
IN STAGE 1
T650/T950H ASSEMBLY DRAWING AND PARTS LIST — STAGE TWO
ITEM NO. PART NUMBER DESCRIPTION QTY.
2 80050-20 PIN, DOWEL 10 × 20 MM 2
3 81003-101 (Consult factory for T950H P/N) HSG, AC C.I. T650 1
4 80046-25 SCREW, CAP, SOC HEAD M8 10
5 1730X-2 LEFT OR RIGHT HAND SEAL ASSEMBLY 2
6 30410-207 BRG, ROLL CYL 2
7 81055 RETAINER BEARING INLET END 2
8 80057-16 SCREW, CAP, SOC HEAD M6 6
9 93378 ELL, TUBE 1/4 × 1/4T 1
10 91210-025 CLAMP, LOOP 1
11 81057 TUBE, INJECTION 1
12 81028-30 SPACER, GEAR 2
13 80051-22 KEY, MM 8 × 7 × 22 2
14 81010 GEAR TIMING FEMALE 1
15 81011 HUB TIMING GEA 1
16 80040-8 LOCK WASHER 6
17 80046-25 SCREW, CAP, SOC HEAD M8 6
18 81012 GEAR TIMING MALE 1
19 81027-2 WASHER, ROTOR SHAFT 2
20 80058 SCREW, CAP, SOC HEAD M8 2
21 92690-062 ELL, TUBE 1/4×1/4 MPT 2
22 OIL TUBING TUBING, RD 1018 STEEL 1
23 PICK UP TUBE TUBING, RD 1018 STEEL 1
24 B18.2.4.5M - HEX JAM NUT M6 HEX NUT 1
25 80045-35 SCREW, CAP, SOC HEAD M6 1
26 81005-117 COVER, MACH C.I. 1
27 80045-20 SCREW, CAP, SOC HEAD M6 12

12
T650/T950H ASSEMBLY INSTRUCTIONS — STAGE THREE
The numbers in parentheses correspond with the drawing on the facing page.
13. INSTALL DRIVE SHAFT ASSEMBLY – PRE-LUBE BEARING
14. INSTALL END COVER
14.1. Install O-ring in end plate – use grease to retain.
14.2. Prep end cover (17).
14.3. Install wave washer (16).
14.4. Oil bearing surface.
14.5. Install alignment bolts.
14.6. Align and install cover over alignment bolts.
14.7. Install three cap screws (18) and draw cover into position over bearing.
Note: There should only be a light fit to the bearing
14.8. Loosen cap screws.
14.9. Install dowels (17) into end plate and cover.
14.10. Install and tighten cap screws on cover – use Loctite.
14.11. Grease drive shaft seal (19).
14.12. Install seal into cover – use Loctite on outer perimeter.
15. INSTALL OIL PUMP ASSEMBLY
15.1. Install oil pump spring and spacer.
15.2. Position oil pump (9) with pin (8) in small radius area.
15.3. Install dowels (2).
15.4. Grease O-rings (3) (4) and install into pump plate.
15.5. Install pump plate (5) and 6 bolts (7) – oil pump plate can only go on one way - use Loctite.
16. INSTALL GEAR END COVER (FROM STAGE TWO DRAWINGS (26(27)).
17. INSTALL INLET PORT.
18. INSTALL EXTERNAL OIL LINES AND FITTINGS.
19. INSTALL DISCHARGE MANIFOLD.

13
T650/T950H ASSEMBLY DRAWING AND PARTS LIST — STAGE THREE
7
6
5
2
8
9
10
11
12 13
14 15
17
16
17
18
19
3
4
TABLE TOP
ITEM NO. PART NUMBER DESCRIPTION QTY.
2 80050-20 PIN, DOWEL 10×20 MM 2
3 29361-017 VITON O-RING 2
4 29361-030 VITON O-RING 1
5 81021 PLATE OIL PUMP 1
6 B18.22M - PLAIN WASHER 6 MM 6
7 80045-25 SCREW, CAP, SOC HEAD M6 6
8 81049 PIN OIL PUMP DRIVE 1
9 81017 PUMP OIL SHAFT MTD 1
10* 30238-5208 BRG, BALL 2 ROW 1
11* 81016 SHAFT DRIVE 1
12* 80054 KEY 14MM × 9MM 1
13* 81013 GEAR DRIVE 1
14* 81024-50 SPACER GEAR 1
15* 30410-210 BRG, ROLL CYL 1
16 92332-90 SPRING, WAVE STL SSB 1
17 81009-101 COVER GEAR MACH C.I. 1
18 80046-25 SCREW, CAP, SOC HEAD M8 11
19 16924 SEAL TRIPLE LIP VITON 1.875 DIA 1
*NOTE: Items 10-15 are pre-assembled and available only as such.

14
T650 AND T950H EXPLODED VIEW DRAWING AND PARTS LIST
ITEM NO. DESCRIPTION QTY.
1 ROTOR MALE 131MM 1
2 ROTOR FEMALE 121 MM 1
3 HOUSING MACH C.I. T650/T950H 1
4 ENDPLATE MACH C.I. 1
5 COVER MACH C.I. 1
6COVER MACH ALUM 1
7 BEARING QJ BALL 2
8 BEARING, ROLL CYLINDER 4
9 RETAINER BEARING DISCHARGE END 2
10 RETAINER BEARING INLET END 2
11 GEAR TIMING FEMALE 1
12 FHCS M6 × 10 SOCKET DR 11
13 HUB TIMING GEAR 1
14 SHCS M8 × 25 32
15 LOCKWASHER 6
16 GEAR TIMING MALE 1
17 KEY, 8MM × 7 × 22 2
18 GEAR DRIVE FEMALE 1
19 KEY, 8MM × 7 × 12 1
20 SEAL ASSEMBLY - RIGHT HAND 2
21 SEAL ASSEMBLY - LEFT HAND 2
22 SPACER GEAR 30MM 1
23 SPACER GEAR 30MM EXT 1
24 SPACER INLET GEAR 2
25 WASHER ROTOR SHAFT 2
26 SHAFT DRIVE T650/T950H 1
27 SPRING, WAVE STL SSB 1
28 BEARING, ROLL CYLINDER 1
29 SPACER GEAR 1
30 GEAR DRIVE INPUT 1
ITEM NO. DESCRIPTION QTY.
31 KEY 14MM × 9 × 22 1
32 BEARING, BALL 2 ROW 1
33 OIL PUMP PLATE 1
34 O-RING VITON 2
35 O-RING VITON 1
36 PUMP OIL SHAFT MTD 1
37 PIN OIL PUMP DRIVE 1
38 ELL, TUBE 1/4 × 1/4 MPT 2
39 ELL, TUBE 1/4T × 1/4T 1
40 TUBING, ROUND, 1018 STEEL 1
41 TUBE, INJECTION 1
42 CLAMP, LOOP 1
43 HHCS M6 × 16 1
44 BUSHING, REDUCER, 3/8 × 1/8 1
45 ELBOW 1/4 NPT × 1/4 37DEG FLARE 1
46 HOSE 1/4 × 15 FEMALE SWIVELS BOTH
ENDS 1
47 ELBOW 1/8 NPT × 1/4 37DEG FLARE
EXTENDED 1
48 SHCS M6 × 20 12
49 O-RING, VITON 1
50 O-RING, VITON 1
51 PIN, DOWEL 10 × 20 MM 6
52 SHCS M6 × 30 6
53 SHIM BEARING 1.375 ID × .001 THK 4
54 HEX NUT M24 2
55 WASHER, GEAR LOCK 2
56 OIL SIGHT GLASS, 1/2 NPT 2
57 SEAL TRIPLE LIP VITON 1.875 DIA 1
58 SCREW SET M3 × 3 CUP POINT 2

15
Dimensions shown are subject to change. Dimensions are shown in inches and millimeters.
T650 AND T950H DIMENSIONAL DRAWING
NOTES
15.99
406
T650:
Ø 1.63” Shaft
with 3/8” Keyway
T950H:
Ø 40mm Shaft
with 12mm Keyway
2.58
66
15.78
401
13.20
335
10.68
271
2.52
64
18.10
460
20.47
520
22.31
567
Ø4.00 TTMA
Discharge Flange*
* Purchased Separately
Filter Indicator
Connection
1/8” NPT
(Both Sides)
Ø5.00 Inlet*
Oil Fill Plugs
(Both Sides)
Sight Glass
(Both Sides)

16
NOTES

17
NOTES

18
WARRANTY – TRUCK BLOWERS
Subject to the terms and conditions hereinafter set forth and set forth in General Terms of Sale, Tuthill Vacuum & Blower
Systems (the Seller) warrants products and parts of its manufacture, when shipped, and its work (including installation and
startup) when performed, will be of good quality and will be free from defects in material and workmanship. This warranty
applies only to Seller’s equipment, under use and service in accordance with Seller’s written instructions, recommendations
and ratings for installation, operating, maintenance and service of products, for a period as stated in the table below. Because
of varying conditions of installation and operation, all guarantees of performance are subject to plus or minus 5% variation.
(Non-standard materials are subject to a plus or minus 10% variation)
PRODUCT TYPE WARRANTY DURATION
New 18 months from date of shipment, or 12 months after initial startup date, whichever occurs first
Remanufactured 12 months from date of shipment, or 12 months after initial startup date, whichever occurs first
Repair 12 months from date of shipment, or remaining warranty period, whichever is greater
THIS WARRANTY EXTENDS ONLY TO BUYER AND/OR ORIGINAL END USER, AND IN NO EVENT SHALL THE
SELLER BE LIABLE FOR PROPERTY DAMAGE SUSTAINED BY A PERSON DESIGNATED BY THE LAW OF ANY
JURISDICTION AS A THIRD PARTY BENEFICIARY OF THIS WARRANTY OR ANY OTHER WARRANTY HELD TO
SURVIVE SELLER’S DISCLAIMER.
All accessories furnished by Seller but manufactured by others bear only that manufacturer’s standard warranty.
All claims for defective products, parts, or work under this warranty must be made in writing immediately upon discovery and,
in any event within one (1) year from date of shipment of the applicable item and all claims for defective work must be made
in writing immediately upon discovery and in any event within one (1) year from date of completion thereof by Seller. Unless
done with prior written consent of Seller, any repairs, alterations or disassembly of Seller’s equipment shall void warranty.
Installation and transportation costs are not included and defective items must be held for Seller’s inspection and returned to
Seller’s Ex-works point upon request.
THERE ARE NO WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY WHICH EXTEND BEYOND THE DESCRIPTION
ON THE FACE HEREOF, INCLUDING WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS OF PURPOSE.
After Buyer’s submission of a claim as provided above and its approval, Seller shall at its option either repair or replace its
product, part, or work at the original Ex-works point of shipment, or refund an equitable portion of the purchase price.
The products and parts sold hereunder are not warranted for operation with erosive or corrosive material or those which may
lead to build up of material within the product supplied, nor those which are incompatible with the materials of construction.
The Buyer shall have no claim whatsoever and no product or part shall be deemed to be defective by reason of failure to
resist erosive or corrosive action nor for problems resulting from build-up of material within the unit nor for problems due to
incompatibility with the materials of construction.
Any improper use, operation beyond capacity, substitution of parts not approved by Seller, or any alteration or repair by others
in such manner as in Seller’s judgment affects the product materially and adversely shall void this warranty.
No employee or representative of Seller other than an Ofcer of the Company is authorized to change this warranty in any way
or grant any other warranty. Any such change by an Ofcer of the Company must be in writing.
The foregoing is Seller’s only obligation and Buyer’s only remedy for breach of warranty, and except for gross negligence,
willful misconduct and remedies permitted under the General Terms of Sale in the sections on CONTRACT PERFORMANCE,
INSPECTION AND ACCEPTANCE and the PATENTS Clause hereof, the foregoing is BUYER’S ONLY REMEDY
HEREUNDER BY WAY OF BREACH OF CONTRACT, TORT OR OTHERWISE, WITHOUT REGARD TO WHETHER ANY
DEFECT WAS DISCOVERED OR LATENT AT THE TIME OF DELIVERY OF THE PRODUCT OR WORK. In no event shall
Buyer be entitled to incidental or consequential damages. Any action for breach of this agreement must commence within one
(1) year after the cause of action has occurred.
January, 2005

IMPORTANT
All Tuthill Truck Blowers manufactured by Tuthill Vacuum & Blower Systems are date coded at time of shipment. In order to assure
you of the full benefits of the product warranty, please complete, tear out and return the product registration card below, or you can
visit our product registration web page at:
http://www.tuthill.com/us/en/about/organization/lob/vacuum/product-registration.cfm
IMPORTANT
All blowers manufactured by Tuthill Vacuum & Blower Systems are date coded at
time of shipment. In order to assure you of the full benefits of the product warranty,
please complete, tear out and return this product registration card.
Company
Location
City State/Province ZIP/Postal Code Country
PLEASE CHECK ONE
Pnuematic Conveying F
Food F
Vacuum F
Paper F
Wastewater F
Gas/Petrochemical F
Other
Telephone : ( )
E-mail:
Model:
Serial Number:
Date of Purchase:
Date of Startup:

NO POSTAGE
NECESSARY
IF MAILED
IN THE
UNITED STATES
ATTN: CUSTOMER SERVICE
TUTHILL VACUUM & BLOWER SYSTEMS
PO BOX 2877
SPRINGFIELD MO 65890-2150
POSTAGE WILL BE PAID BY ADDRESSEE
BUSINESS REPLY MAIL
FIRST-CLASS MAIL PERMIT NO. 2912 SPRINGFIELD MO