STEERING CYLINDER REPAIR - CONTINUED
CLEANING AND INSPECTION
Solvent cleaning compound MIL-PRF-680 Type III is an environmentally compliant and low toxic
material. However, it may be irritating to the eyes and skin. Use protective gloves and goggles. Use in
well-ventilated areas. Keep away from open flames and other sources of ignition.
Particles blown by compressed air are hazardous. DO NOT exceed 15 psi (103 kPa) nozzle pressure
when drying parts with compressed air. Use a maximum of 30 psi (207 kPa) when cleaning compo-
nents. DO NOT direct compressed air against human skin. Failure to follow this warning may cause
injury or death. Make sure air stream is directed away from user and other personnel in the area. To pre-
vent injury, user must wear protective goggles or face shield.
Remove all preformed packing material from mounting surfaces.
Use emery cloth to scuff surfaces of cylinder head counterbore and the outside diameter metal shell of new seals.
Clean all parts with solvent cleaning compound.
The metal shell of the seal is coated with a corrosion inhibitor. This may prevent proper bonding of the seal
to the cylinder head if the inhibitor is not removed. After cleaning, do not touch the counterbore of the metal
shell. Oil from skin may prevent a good bond. Handle the seal by the lip only.
Clean the counterbore and the metal shell of the new seals until none of the components discolor a clean white towel.
Dry all parts with compressed air.
Inspect all parts for damage and replace as necessary.
Use clean lubricating oil to lightly lubricate lips of new seals (17 and 16).
Use driver and hammer to install new seals (17 and 16) in head (15), with the lips toward inside of cylinder. Install new
seal (16) until it contacts counterbore in head (15).
Apply primer on counterbore and metal shell of new seal (18) and allow to dry (approximately 30 seconds).
Do not allow sealing compound to contact the sealing lip.
Apply sealing compound to counterbore and to metal shell of new seal (18).
Use clean lubricating oil to lightly lubricate lip of new seal (18).