Transmission Hydraulic Controls

(c) R o t a t e stator

install the torque divider on the engine. Refer to LO

(1)

slightly

until

the

s m o o t h surface of the turbine is resting on steel

5-2410-233-12

and

fill

transmission

and

torque

balls (4).

d i v i d e r to specified level.

(d) C l a m p d i a l i n d i c a t o r t o t u r b i n e ( 2 ) .

CAUTION

(e) Move the stator (1) from side to side (in

Install

the

universal joint

before

l i n e with the dial indicator stem) and record the

starting

diesel

engine

prevent

t o t a l movement reading on the dial indicator. This

hydraulic

pressure

from

forcing

the

r e a d i n g is the total diametral clearance (twice the

torque divider output shaft to the rear

running clearance (A)).

and causing a rapid loss of oil.

(f) M e a s u r e d i a m e t r a l c l e a r a n c e a t f o u r

6-4.

Transmission

Hydraulic

Controls

e q u i d i s t a n t points. Use the highest clearance when

a. General (fig. 6-20).

determining if the components are within the

( 1 ) The transmission hydraulic control system

allowable limits.

is composed of a pump, filter, series of valves, and a

(g) Position

impeller

(3)

shown

and

control

lever

and linkage mechanism. The

p l a c e steel rods (5) on the impeller.

h y d r a u l i c control system directs oil to the clutches

(h) Position stator (1) into impeller (3) and

i n the transmission. Bypass oil from the hydraulic

on rods (5).

c o n t r o l pressure relief valve (7) is directed to the

(i) Clamp the dial indicator to bolt.

torque converter inlet relief valve to aid in charging

(j) Move stator (1) from side to side (in line

t h e torque converter.

w i t h the dial indicator stem) and record the total

(2) A hydraulic oil pump (3) is located on the

movement reading on the dial indicator. This

f r o n t of the rear power takeoff housing. The pump

r e a d i n g is the total diametral clearance (twice the

delivers oil to the full flow oil filter (2) located near

running clearance (B)).

t h e left main frame. If the filter element becomes

(k) Measure the diametral clearance at four

clogged. a filter bypass valve opens and allows the

equidistant points using the highest clearance when

oil to flow unrestricted to the hydraulic control

determining if the components are within the

valve.

allowable limits.

h. Installation. R e v e r s e r e m o v a l p r o c e d u r e a n d

6-22