(15) Install the pipe nipple (12) in the exhaust valve body (10).
(16) Install the adapter unions (4) in the operating valve body (13).
(17) Install the pipe plug (29) in the regulating valve body (2).
213. Steering Yoke and Roll
(1) Drain the water ballast from the steering rolls.
(3) Remove the steering roll sprinkler mat assembly (par. 167b).
(4) Block the compression roll securely.
(5) Cut the lock wires (12) and loosen the axle screws (11) on both sides of the steering roll axle (17).
(6) Remove the clamp screws (14) and lockwashers. Remove the axle clamps (13) from the steering yoke (7).
(7) Use a crane or jacks to lift the steering roll end of the road roller just high enough for the steering yoke (7) to
clear the axle (17).
(8) Place solid blocking under the road roller frame and make sure tile roller is resting securely with its full
weight on the blocks.
(9) Roll the steering roll assembly (8) away from tile road roller.
(10) Unscrew and remove the swivel pin bolt (19), lockwasher, and nut.
(11) Use a crane, jacks, or blocking to hold the steering yoke in place while removing the swivel pin (18). Use a
wood block and sledge hammer to remove the swivel pin (18). Position the wood block on the swivel pin
and drive the pin out by pounding at it from the engine side of the steering yoke.
(12) Lower the steering yoke (7) until it clears the kingpin (5) and move it to a suitable location for cleaning and
b. Cleaning. Wash the steering yoke with cleaning solvent and dry it with a soft absorbent cloth. Use a wire brush to
clean all corroded and pitted spots. Repaint if necessary. Clean the swivel pin mounted hole with a stiff brush and
cleaning solvent. Be sure to remove all dirt, dust sludge and old grease. Wash the swivel pin in cleaning solvent and blow
off grease passages with clean compressed air.
c. Inspection and Repair. Inspect the steering yoke for breaks and cracks. Replace the steering yoke if it is badly
twisted or warped. Weld all minor cracks and breaks, using reinforcing plates if necessary.