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Blower Engineering Instructional Manual

11

8.1  Blower disassembly

Disassembly of the blower within the warranty period results in the cancellation of the warranty.

Disassembly  repair  work  and  reassembly  of  the  blower  must  be  carried  out  only  by  skilled 

personnel and with the aid of suitable equipment and the relevant manual. This manual contains

only the instructions for preventative maintenance. For any references to components see attached

sections.

NOTE:

The warranty does not cover damages caused by operations carried out incorrectly

during disassembly and/or reassembly of the blower.

WARNING:

Before starting disassembly of the blower, make sure that the power has been

disconnected. Follow the instructions in paragraph 9.2.

Disassemble the drive components (sheave or coupling), following the manufacturer's instructions

if there are locking devices or by means of an extractor if attached directly onto the shaft.

WARNING:

Do not hammer the shaft, coupling or sheave.

Personnel who may come into contact with the blower must observe the most elementary safety

rules in order to minimize the possibility of suffering physical injury With this in mind, all personnel

who work in or pass through the area where the blower is functioning must be instructed in the

safety rules to follow and must be warned through the use of danger notices.

9.1  Blower in operation

Do not touch the external surfaces of the blower because they could reach temperatures higher

than 285ºF (141ºC) and therefore cause burns.

• 

Do not hold objects or insert limbs into the blower openings because the moving rotors

could cause serious physical injury.

• 

Provide suitable protection devices for the coupling and/or drive belts.

• 

If the blower is operating disconnected from system piping, place a screen in front of the

inlet and keep away from the blower outlet flow.

• 

Do not open the oil plugs.

• 

Do not turn off the safety systems which are provided.

• 

Do not stand too close to the safety valve discharge.

• 

Avoid prolonged exposure to the noise produced by the blower, if suitable protection is not

worn. The sound pressure near the blower could be greater than 85 dB (A).

9.2  Before any blower service

Stop the blower by disconnecting the electrical supply.

• 

Disconnect the electrical supply cables.

• 

Bring the unit to atmospheric pressure.

WARNING:

The gas contained in the blower may be hot, toxic and irritant.

Summary of Contents for Tri-Lobe TL Series

Page 1: ......

Page 2: ...m piping 7 4 4 1 Inlet pipe 4 4 2 Outlet pipe 4 5 Check valve 7 4 6 Safety valve 7 4 7 Electrical connection 8 4 8 Preliminary controls 8 4 9 Start up 8 4 9 1 First start up 4 9 2 Normal start ups 5 0 Operating checks 9 5 0 1 Daily checks 5 0 2 Check after first 50 hours 5 0 3 Check every 500 hours 5 1 Stopping the blower 9 6 1 Preventive maintenance 9 6 1 1 Oil change 7 0 Troubleshooting 10 8 1 B...

Page 3: ...operating manual The model number of the blower and pertinent serial number are to be quoted any time additional information is requested The serial number is applied on the nameplate fixed to the machine Warranty We warrant that this product will be free from defects in material and workmanship for a period of 18 months from date of shipment Within the warranty period we shall repair or replace F...

Page 4: ...seals and bearings are located The rotors are synchronized by a pair of timing gears having helical hardened and ground teeth The shafts have labyrinth seals gas leaks are collected in special air spaces in the covers and are discharged into the atmosphere Two sumps are mounted on the covers which act as oil sumps for splash lubrication of the bearings and the synchronizing gears The gears are sec...

Page 5: ...is can be achieved via belt drives or by varying the electric motor supply voltage frequency or with a double polarity motor Bleeding off of excess capacity via a regulating valve on the outlet Do not use the safety valve for this purpose because it will suffer excessive wear Do not re circulate the excess gas into the blower inlet without cooling because it could cause excessive heating WARNING D...

Page 6: ...the feet or the outlet flange Place shims under feet of blower to prevent overstressing of the housing 4 2 Coupling 4 2 1 Direct coupling Slide the half couplings onto the shaft of the blower and of the motor using suitable tools Align the shafts of the blower and of the motor and where necessary insert shims under the feet of the motor and or blower Check the alignment by using calipers or gauges...

Page 7: ...40 5 90 150 5 90 150 5 90 150 X X X X TL70 5 50 140 5 50 140 5 90 150 5 90 150 6 30 160 6 30 160 6 30 160 6 30 160 6 30 160 TL80 5 50 140 5 50 140 5 90 150 6 30 160 6 30 160 6 30 160 6 30 160 6 30 160 6 30 160 TL81 6 00 160 6 00 160 6 70 170 6 70 170 7 10 180 7 10 180 7 10 180 X X X X TL90 7 90 200 7 90 200 7 90 200 7 90 200 7 90 200 9 00 225 9 00 225 9 90 250 9 90 250 TL100 7 90 200 7 90 200 7 90...

Page 8: ... 318 432 600 1200 2 00 28 12 70 41 18 60 8V to 18 00 24 00 457 610 400 900 4 00 32 14 51 48 21 77 If replacing 3V or 5V belts with the same belt length and same number of belts in 3VX or 5VX cross section belt tension does not need to be increased NOTE New drives designed with 3VX or 5VX belts should be tensioned at the respective deflection force value shown in above table V Belt Cross Small Shea...

Page 9: ...n of the blower when it stops while loaded install a check valve on the discharge when acting under pressure or on the inlet when acting under vacuum conditions 4 6 Safety valve To limit the maximum operating pressure of the blower use a safety valve on the discharge when acting under pressure or on the inlet when acting under vacuum conditions WARNING Install the safety valves as close as possibl...

Page 10: ...een in storage for more than 6 months check its state of preservation Check the coupling or the sheave alignment Check the belt tension Check that the blower shaft rotates freely manually Check that the safety protection devices have been correctly installed and secured Fill the blower with oil as described in paragraph 6 1 1 4 9 Start up 4 9 1 First start up Open the shut off valve Check that the...

Page 11: ...aintenance 6 1 1 Oil change The first oil change should be performed after 100 working hours Further oil changes are performed every 2000 working hours Oil should be checked regularly and oil changes made more frequently if lubricant becomes contaminated due to adverse conditions The type of oil is shown in paragraph 10 WARNING Dispose of the used oil in accordance with the local regulations WARNI...

Page 12: ...peed of rotation is not the same as rated value Check the speed of rotation and reset to rated value Incorrect electrical connection Check electrical system Rotors making contact Stop blower immediately see paragraph 7 3 7 5 Loss of oil Drive shaft seal is worn Replace the drive shaft seal Oil drain and level plugs gaskets are worn Replace the gaskets Oil level sight glasses are broken Replace sig...

Page 13: ...inimize the possibility of suffering physical injury With this in mind all personnel who work in or pass through the area where the blower is functioning must be instructed in the safety rules to follow and must be warned through the use of danger notices 9 1 Blower in operation Do not touch the external surfaces of the blower because they could reach temperatures higher than 285ºF 141ºC and there...

Page 14: ...an oil specially made for low temperatures according to recommendations of oil producers Oil Type ISO Class Acc To Mineral oil for general use C CL CLP DIN 51517 Mineral oil for hydrostatic and hydrodynamic circuits H HL DIN 51524 Mineral oil for internal combustion engines HD Synthetic oil ISO Class USE ISO VG 150 oil temperature up to 176ºF 80ºC compression ratio up to 1 7 gas discharge temperat...

Page 15: ...26 washer 1 25 bolt 6 24 adjusting ring 2 23 gear spacer 2 21 spacer Qty Per Part Part Blower Number Description 2 19 spacer 4 17 sealing chamber 1 16 lock nut driveshaft 4 14 pre load washer 1 13 key shaft 1 12 driven rotor 1 11 drive rotor 4 9 ring holder 1 8 gear driven 1 7 gear drive 16 6 piston sealing ring 1 5 shaft sleeve 1 4 lip seal 1 3 bearing 1 2 bearing 2 1 bearing Listings not shown 8...

Page 16: ...ar spacer 2 21 spacer 2 19 spacer Qty Per Part Part Blower Number Description 4 17 sealing chamber 1 16 lock nut driveshaft 4 14 pre load washer 1 13 key shaft 1 12 driven rotor 1 11 drive rotor 4 9 ring holder 1 8 gear driven 1 7 gear drive 16 6 piston sealing ring 1 5 shaft sleeve 1 4 lip seal 1 3 bearing 1 2 bearing 2 1 bearing Listings not shown 8 49 o ring 8 37 adjusting washer 1 32 spring pi...

Page 17: ...er 1 25 bolt 6 24 adjusting ring 2 23 gear spacer 2 21 spacer 2 19 spacer Qty Per Part Part Blower Number Description 4 17 sealing chamber 1 16 lock nut driveshaft 6 14 pre load washer 1 13 key shaft 1 12 driven rotor 1 11 drive rotor 4 9 ring holder 1 8 gear driven 1 7 gear drive 16 6 piston ring seal 1 5 shaft sleeve 1 4 lip seal 1 3 bearing 1 2 bearing 2 1 bearing Listings not shown 8 48 o ring...

Page 18: ...2 oil slinger gear 1 31 bolt 1 29 drive sump 1 28 gear sump 2 27 lock washer 4 25 pre load washer 2 24 ring holder drive 1 23 washer 2 22 washer 2 21 spacer 1 20 oil splash disc 2 19 gear lock nut 4 17 sealing chamber 4 16 pre load washer 1 15 key slinger 1 14 key shaft Qty Per Part Part Blower Number Description 1 13 shaft piston driven 1 12 shaft piston drive 2 10 ring holder gear 1 9 gear drive...

Page 19: ...headplate 3 38 circlip 12 36 bolt 2 35 inner cover 1 34 oil slinger drive 1 33 oil slinger gear 1 31 drive sump 1 30 gear sump 2 29 lock washer 1 28 key slinger 1 27 washer 2 26 washer 1 25 bolt 2 24 spring Qty Per Part Part Blower Number Description 2 23 spacer 3 21 oil splash disc 1 19 oil splash disc 4 17 sealing chamber 2 16 gear lock nut 6 14 pre load washer 1 13 key shaft 1 12 rotor driven 1...

Page 20: ... driven headplate 3 38 circlip 4 36 spacer 2 35 inner cover 1 34 oil slinger drive 1 33 oil slinger gear 1 31 drive sump 1 30 gear sump 2 29 lock washer 1 28 key 1 27 washer 2 26 washer Qty Per Part Part Blower Number Description 1 25 bolt 2 24 spring 2 23 spacer 3 21 oil splash disc 1 19 oil splash disc 4 17 sealing chamber 2 16 gear lock nut 6 14 pre load washer 1 13 key shaft 1 12 rotor driven ...

Page 21: ...75 0 375 4 625 500 TL70 14 6 12 4 0 94 18 15 14 64 13 62 15 8 85 2 64 28 62 6 9 5 11 22 0 9 8 17 7 17 13 2 125 0 5 4 875 608 TL80 14 6 17 0 94 18 15 18 7 15 71 17 09 8 85 2 64 32 8 6 9 5 11 22 0 9 8 17 7 17 13 2 125 0 5 4 875 694 TL81 14 6 22 0 94 18 15 24 17 18 46 19 84 8 85 2 64 38 3 6 9 5 11 22 0 9 8 17 7 17 13 2 125 0 5 4 875 808 TL90 16 9 15 25 0 94 22 8 17 64 16 5 19 75 9 84 3 35 36 25 6 9 5...

Page 22: ...n all models Splash Oil Lubrication Assures improved bearing life and operational simplicity Gas or air is delivered in an uncontaminated oil free state The unit may be coupled directly or driven by V belts Rotation of the impellers is synchronized by a pair of timing gears having helical hardened and ground teeth Design Features 145 300 600 1200 2400 4800 5200 Vacuum Max Hg P Max PSIG Tri Lobe Mo...

Page 23: ...Packaged System from Blower Engineering Blower Engineering 10228 Old Liberty Rd Liberty NC 27298 Telephone Facsimile Toll Free Telephone 1 800 388 1339 336 268 8820 800 523 8808 ...

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