Craftsman C950.679621 Operator's Manual page 11

Lubricate O-Rings
Lubrication of o-rings is extremely important for installation
and operation. The use of a lubricant (petroleum or synthetic
grease) during assembly helps seat o-rings properly and
provides an improved seal. It also helps protect the o-ring
from damage by abrasion, pinching or cutting and extends
the life of the o-ring.
NOTICE ALWAYS apply a small amount of lubricant on
o-rings prior to assembling the garden hose to the pump (A),
high pressure hose (B), spray gun (C), and nozzle
extension (D).
Lubricate all connections shown below, following these
instructions:
1. Inspect and clean connecting surfaces prior to
lubrication and assembly.
2. Use lubricants sparingly during assembly; a light film is
all that is required.
3. Use a small brush or cotton swab to apply grease
directly to o-rings where they are not accessible (QC
fitting, M22 fitting).
C
D
B
A
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