Click here to make tpub.com your Home Page

Page Title: TOPIC 1. TRANSMISSION
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

TM 10-3930-644-14&P
TOPIC 1. TRANSMISSION
A. DESCRIPTION
TORQUE CONVERTER
The "Power-Shift" transmission consists of three major
The torque converter is composed of three members:
components: The torque converter, la hydraulically
The impeller or driving member, the turbine or driven
actuated clutch pack and a single speed, constant mesh
member, and the stator or reaction member.
The
transmission. A single lever type shift control is mounted
impeller forms the outer shell of the converter, and the
on the steering column to control the direction of travel
turbine and stator operate within the impeller but turn
through a control valve mounted on the transmission
free of the impeller.  The impeller is mounted on the
housing.
engine flywheel and always turns at engine speed.
Power from the engine is delivered to the torque
The torque converter is filled with oil and when the
converter which, in turn, drives a pump and clutch pack.
impeller is rotated by the engine, the oil in the impeller
Housed in the clutch drum are two double faced clutch
vanes also rotates; and, being subjected to centrifugal
plates which, when activated, move the truck forward or
force, causes the oil to flow outward. At the beginning,
reverse through splined hubs, transmitting power to the
the turbine is stationary, and there is no centrifugal force
gear train.
on the oil in it. Therefore, the oil in the impeller, due to
its centrifugal force, enters the turbine near its outer
If the reverse clutch is activated, power is delivered to
circumference and forces oil from the turbine back into
the transmission through a hollow shaft which connects
the impeller near its inner circumference. A circulation of
the reverse gear and reverse clutch.  If the forward
oil is set up, which continues as long as there is a
clutch is actuated, power is delivered to the transmission
difference between the speeds of the impeller and the
through a solid shaft, which rotates inside the hollow
turbine.
reverse shaft, connecting the forward gear and forward
clutch.
Figure 1-1. Power Shift Torque Converter Drive
2-49

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business