Assembly-continued -706880901

TM 5-4210-233-14&P-1

5-39. STEERING GEAR-Continued

NOTE

Valve sleeves are identified and matched to a right or

left hand lead of the worm screw. If the screw has a

right hand thread (that is, goes into the rack piston

when turned clockwise), the valve sleeve will have

the letter "R" stamped between the seal lands. For a

left hand worm lead (which will come out of the rack

piston when turned clock- wise) the mating valve

sleeve has no identifying letter or has the letter "L"

stamped between the seal lands.

(28)

Maintain pressure on the valve end of the valve housing (35) to insure continued engagement of

the drive lugs and thrust bearing package. While maintaining pressure, rotate the valve housing to

align the poppet adjusting screw (34) with the poppet (58) in the rack piston (46). Continue

pressure, and rotate the input shaft to bring the valve housing into contact with the gear housing

face.

(29)

Assemble four valve housing bolts (36), 2.125 in. (53.98 mm) long, into the housing (18) and

torque to 150-170 ft. Ibs (203-230 N.m) if dry or 108-128 ft Ibs. (146-174 N.m) if lubricated.

WARNING

Use care in securely staking the retainer (24) into the sector

shaft slots. A retainer that is broken or cracked during the

staking procedure must be replaced as it could result in the

sector shaft not being retained and the loss of manual and

power steering control.

(30)

If the adjusting screw (8) has been removed from the sector shaft (2), clamp the sector shaft into a

soft-faced vise by gripping the serrated end. Coat the expanded end of the new adjusting screw

with wheel bearing grease (Item 53, Appendix E) and inset into recess in end of sector shaft.

Thread a new sector shaft screw retainer (24) into the sector shaft and adjust to permit free

rotation of sector shaft adjusting screw by hand without perceptible end play [.000 to .002 in. (.05

mm) loose]. Stake the new retainer into the two slots provided using a suitable punch and again

check freedom of adjusting screw movement and end play.

CAUTION

Use only wheel bearing grease. This bearing is sealed and will

receive no lubrication from the hydraulic fluid in the gear.

Failure to use wheel bearing grease could result in premature

bearing wear.

(31)

Apply a generous amount of clean wheel bearing grease (Item 53, Appendix E) to the bearing race

or caged bearing assembly inside the side cover (15).

5-231