BENDIX TU-FLO 750 COMPRESSOR Dati di servizio - Pagina 14

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Minimum oil pressure required at

engine idling speed ............................................ 15 PSIG

Minimum oil pressure required at

maximum governed engine speed .................... 15 PSIG

Minimum discharge-line size ............................. 1/2" I.D.

Minimum coolant-line size ................................. 3/8" I.D.

Minimum oil-supply line size ............................ 3/16" I.D.

Minimum oil-return line size ............................... 1/2" I.D.

Minimum air-inlet line size .................................. 5/8" I.D.

Minimum unloader-line size ............................. 3/16" I.D.

TORQUE SPECIFICATIONS

Bolt, Nut or Screw ........................... Assembly Torque

Cylinder Head .................................................. 300 - 360

Unloader Cover Plate ...................................... 175 - 225

Discharge Valve Seat ............ 840 - 1,080 (70-90 ft. Ibs.)

Inlet Valve Stop ...................... 840 - 1,080 (70-90 ft. Ibs.)

End Cover ........................................................ 175 - 225

Connecting Rod ............................................... 150 - 170

Bottom Cover ................................................... 175 - 225

Air Strainer ....................................................... 125 - 150

Inlet Fitting ....................................................... 175 - 225

Discharge Fitting .............................................. 175 - 225

Governor or Governor Adapter ........................ 175 - 225

Pipe Plugs

1/16 ...................................................................... 35 - 50

1/8 ...................................................................... 85 - 105

1/4 .................................................................... 130 - 170

3/8 .................................................................... 160 - 200

1/2 .................................................................... 200 - 270

Pipe Bushing

1/2 .................................................................... 175 - 225

Crankshaft Nut:

Marsden or Castle .......... 1,200 - 1,400 (100-120 ft. lbs.)

P/N 298125

(Metric Thread) .................2,640 - 3,048 (220-254 ft. lbs.)

DIMENSIONAL DATA

Port Sizes

Water inlet .................................................. 1/2 - 14 NPT

Water outlet ................................................ 1/2 - 14 NPT

Air discharge ............................................... 1/2 - 14 NPT

Governor ..................................................... 1/8 - 27 NPT

Oil inlet (end cover) .................................... 1/8 - 27 NPT

Piston

(standard) ..................................................... 2.77825 in.

(.010 oversize) .............................................. 2.78825 in.

(.020 oversize) .............................................. 2.79825 in.

(.030 oversize) .............................................. 2.80825 in.

Cylinder bore

(standard) ....................................................... 2.7810 in.

(.010 oversize) ................................................ 2.7910 in.

(.020 oversize) ................................................ 2.8010 in.

(.030 oversize) ................................................. 2.8110 in.

MAINTENANCE KITS AND AVAILABLE SERVICE

PARTS

Cylinder Maintenance Kit.

Piston Ring Kit (standard and oversizes.)

Piston and Rod Kit (standard and oversizes.)

Crankshaft Bearing Kit.

Gasket & Seal Kit.

COMPRESSOR TROUBLESHOOTING

IMPORTANT: The troubleshooting contained in this section

(in. Ibs.)

considers the compressor as an integrated component of

the overall air brake charging system and assumes that

an air dryer is in use. The troubleshooting presented will

cover not only the compressor itself, but also other charging

system devices as they relate to the compressor.

WARNING! PLEASE READ AND FOLLOW THESE

INSTRUCTIONS TO AVOID PERSONAL INJURY OR

DEATH:

When working on or around a vehicle, the following

general precautions should be observed at all times.

1. Park the vehicle on a level surface, apply the parking

brakes, and always block the wheels. Always wear

safety glasses.

2. Stop the engine and remove ignition key when

working under or around the vehicle. When working

in the engine compartment, the engine should be

shut off and the ignition key should be removed.

Where circumstances require that the engine be

in operation, EXTREME CAUTION should be used

to prevent personal injury resulting from contact

with moving, rotating, leaking, heated or electrically

charged components.

3. Do not attempt to install, remove, disassemble

or assemble a component until you have read

and thoroughly understand the recommended

procedures. Use only the proper tools and observe

all precautions pertaining to use of those tools.

4. If the work is being performed on the vehicle's

air brake system, or any auxiliary pressurized air

systems, make certain to drain the air pressure

from all reservoirs before beginning ANY work

on the vehicle. If the vehicle is equipped with an

AD-IS

be sure to drain the purge reservoir.

5. Following the vehicle manufacturer's recommended

procedures, deactivate the electrical system in a

manner that safely removes all electrical power

from the vehicle.

6. Never exceed manufacturer's recommended

pressures.

air dryer system or a dryer reservoir module,