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1.21 Hydraulic Safety
Inspect all hydraulic hoses and fittings for cracks and
abrasions at least once a year. Tighten or replace as
needed.
Do not over-tighten hydraulic fittings, excessive torque
may cause them to crack.
Care must be taken to prevent twisting when tightening
hose connections. Straighten any hose that appears twist-
ed immediately. A twisted hose can burst under pressure.
When connecting the hoses to the cylinders, tubing or
fittings; always use one wrench to prevent the hose from
twisting and another wrench to tighten the union. Ex-
cessive twisting will shorten hose life and loosen hose
fittings.
CAUTION: Hydraulic fluid escaping
under pressure can have enough force
to penetrate the skin. Hydraulic fluid
may also infect a minor cut or opening
in the skin. If injured by escaping fluid,
see a doctor at once. Serious infec-
tion or reaction can result if medical
treatment is not given immediately.
Make sure all connections are tight
and that hoses and lines are in good
condition before applying pressure to
the system.
To find a leak under pressure, NEVER
USE YOUR HAND, use a small piece
of cardboard or wood.
Hydraulic Connection Torques
Straight Thread O-ring Boss (ORB) (1) (example:
12MB - 12MJ is a -12 male ORB to -12 male JIC)
1
21
1. Safety
2
Precision Shank Drill
Operators Manual - 74356-02
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