
TDI TURBOTWIN™
FROM TECH DEVELOPMENT
Page 2 Publication: T3-790, Rev. 2
Issued January 9, 2013
1.0 GENERAL INFORMATION
This manual contains Instructions for installation,
operation and maintenance of TDI TURBOTWIN™
Model T30-M Air Motors used as auxiliary drives for
Pre & Post Lube Oil Pumps. These are supplied by
OEMs and can also be obtained in the aftermarket as
motor upgrades.
Review this manual before installing or operating T30-
M Air Motors. For Questions, ContactyourAuthorized
TDI Distributor, OEM or TDI directly.
WARNINGS, CAUTIONS AND NOTES
Certain types of information are highlighted in this
manual for your attention:
WARNINGS: - used wherein NON-
COMPLIANCE will likely result in injury to
personnel or damage to the equipment.
CAUTIONS: - used where there is possibility
of damage to the equipment.
NOTES/IMPORTANT: - used to cite special
information for “optimum” use & care.
1.1 DESCRIPTION & ADVANTAGES
T30-M Air Motors are similar to the design used in T30
AirStarters. T30-M featuresvariousinterfacesallowing
the motors to be fitted with couplings or directly to
different model mechanical (oil) pumps. T30-M Air
Motors are superior to other types of drive motors in:
oDurability- Very tolerant of contamination
(liquid or fine solids) in the air/gas supply.
oCost Effectiveness – costly supply air/gas
filtration, drying, lubrication are generally not
required.
oEfficiency - Low air/gas consumption per
unit of power produced.
oCooler Running – greater expansion allows
motor to run cooler on extended duty cycles.
oApplication Flexibility – Variable operation
(output power & RPM). Suitability for use at
much lower air/gas supplies to 10 psig.
oOwnership Cost - Sealed bearings and
gear train require no maintenance or
external lubrication.
oEase of Compliance - Exhaust is cleaner,
since motor produces no (fugitive) oily mist
emissions.
NOTE
THIS MOTOR IS TO BE SERVICED ONLY BY AUTHORIZED TDI
TURBOTWIN™ DISTRIBUTORS, DEALERS, AND REPAIR
CENTERS. DO NOT OPERATE THIS MOTOR UNLESS IT IS
PROPERLY ATTACHED TO AN ENGINE.
oTURBOTWIN T30-M Air Motors are designed
for operation on either compressed air or
natural gas.
oTURBOTWIN T30-M Air Motor materials are
compatible with “sour” natural gas and marine
environments.
oTURBOTWIN T30-M Air Motors are ATEX
certified (where indicated in certain OEM
applications).
oTURBOTWIN Air Motors do NOT require mist-
type or injection-type lubrication of the air/gas
supply. These are not fitted on OEM
applications and should be removed when
upgrading from vane-type air motors.
NOTE
Throughout this manual, the term “air” designates the
Motor drive medium. Unless otherwise stated, "air"
means either compressed air or natural gas. UNITS
WITH INTEGRATED CONTROLS as SUPPLIED BY
TDI, ARE NOT OPERABLE ON NATURAL GAS.
OEM applications, may be supplied with gas
compatible controls, and which meet various
agency requirements as specified.
1.2 BASIC OPERATION
NOTE
T30-M Air Motors are designed for intermittent duty
cycles, NOT continuous duty cycles.
TURBOTWIN T30-M Air Motors are two-stage turbine
driven, gear reduced air motors, with the following key
differencesvs. other typesofmotorscommonly usedin
similar (pump) drive applications:
Unlike electric Motors, power output and
operating speed can vary greatly depending
on the dynamic operating pressures supplied
to the motor inlet and the loads imposed.
(See performance data).
Unlike vane-type (positive displacement) or
electric motors, turbine-type air motors, if
unloaded/under-loaded, will operate at much
higher free-speeds (or over-speed).
Turbine type motors should be properly
selectedand regulatedto operate efficiently at
a required load & speed… rather than over a