Steering Clutches

Figure 6-80. Adjusting brake linkage.

6-15. Steering Clutches

a. General.

( 1 ) The multiple disc, oil-type steering clutches

Figure 6-81. Steering clutch operation.

are held in engagement by springs, and are

b. Removal and Installation.

disengaged hydraulically.

( 1 ) Remove the fuel tank, (para 5- 1 4 ) t h e r e a r

(2) The steering clutch disc assemblies have

cross member, a n d b r a k e e n g a g i n g m e c h a n i s m

t e e t h on the outer diameter which mesh with splines

i n the outer drum. The steering clutch driving discs

(2) Rotate the track by placing a hydraulic

have lugs on the inside diameter which interlock

j a c k u n d e r t r a c k g r o u s e r a n d r e m o v e the bolts (1,

with the tapered recesses of the inner drum.

fig. ( 6 - 8 2 ) and bolts (4).

( 3 ) The steering clutches are disengaged by oil

p r e s s u r e acting behind the steering clutch piston (1,

lN()'IE

f i g . 6-81) which causes the piston to move outward

To prevent the possiblity of the outer drum slipping off

the steering clutch driven drum flange (3, fig. 6-82)

a g a i n s t the steering clutch spring retainer (3). This

and the inner drum slipping off the steering clutch

m o l e s the steering clutch pressure plate (2) out of

driving hub (2), causing steering clutch assembly to

contact with the discs to disengage the clutch.

drop, leave two bolts (1) securing the inner drum to the

hub until a sling is attached. The bolts holding the

outer drum to the flange can be removed, replaced,

and torqued through the opening in the side of the

steering clutch and bevel gear case, after removing the

plug. Rotate the steering clutch assembly after each

bolt is removed to gain access to the next one.