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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
F
Is Tuthill mounting kit used?
F Is ratio and horsepower correct for PTO?
F Mount PTO as per manufacturer’s recommendations and refill transmission.
F Ensure oil levels are at the center of the sight glass when blower is not running.
F Without drive line connected, can blower can be rotated by hand?
F Is drive line installed at correct angle and phase with all fasteners secured?
F Ensure PTO rotates blower in correct direction indicated by arrow.
F Air inlet filter connected and located away from truck exhaust.
F Remove Camlock dust cap, discharge piping open to atmosphere.
F With tractor engine at idle, slowly engage PTO. Check for correct rotation.
F Slowly bring blower up to operating speed.
F Check for vibration, mechanical noise, oil leaks and mounting integrity.
F Stop blower, connect blower discharge hose to trailer and run blower at operating pressure of trailer for 15 minutes at normal
speed.
F Does relief valve operate correctly?
F Does engine maintain correct RPM throughout test?
F Is 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
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