Chevrolet Light - Page 92

Hydrovac
The Hydrovac unit is equipped with a lub rication plug in
the closed end of the shell approximately :Ih" from the bottom
of the cylinder. One ounce of Bendix Vacuum Cylinder Oil
or Delco shock absorber fluid s hould be added at 10 ,000 mile
intervals or each six month period, especially prior to the start
of cold weather.
This oil is necessary to facilitate oiling of the vacuum piston
leather. Oiling of the leather is nece ssary to prevent piston
drag and po ssib le bending of the piston rod.
Steering Gear Lubrication
The steering gea r is filled at the factory with an all-season
gear lubri cant. Seasonal change of th is lubricant is unneces-
sary and the housing s hould not be drained. Whenever re-
q uired, additi ons should be made using steering gear lubri-
cants marketed by many oil companies, "Multi-Purpose" gea r
lubri cants as recommended for rear axle and tran smission may
be used. •
The pi pe pl ug is installed at this point to pre vent over-
lubr ication, generally occasioned by the use of a pressure gun.
Over-lubrication of this unit might result in forcing lubri-
cant up the steering gea r tube to the hom button and steer-
ing wheel.
Steering Column Manual Shift Mechanism
Ih Ton and 3,4 Ton Models
This mechanism, lubricated at the factory, is well pro-
tected and shoulCi not require further lubrication .
However, should the shifting effort become noticeably
great er, remove the cap on the gearshift control box and fill
box with a soft sm ooth grease.
General Note
Cab-Over-Engine trucks are provided with removable Boor
pans and Forw ar d Control units have a removable engine com-
partm ent lid for easy access to the engine compartment.
To lubricate the C.O.E. generator front and rear bearm 'gs,
standpipes are provided which are readily accessible after
raising the hood.
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