Broderson IC-80-3L 4X2, Installation And Operating Manual

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HYDRAULIC SEALS
W A R N I N G
Do not check for hydraulic leaks with hands. If a mist of hydraulic oil is noticed
around a line or component, use cardboard or other material to check for location
of leak. High pressure fluid leaking from a small hole, can be almost invisible, yet
have enough force to penetrate the skin. If injured by escaping fluid, see a doctor
at once. Serious reaction or infection can occur.
All hydraulic fittings and hose connections should be kept tight to prevent loss of fluid
from the system and unnecessary dripping from the machine. Most hydraulic fittings on
the IC-80 crane use o-ring seals, and if tightening the fitting fails to stop the leak, the o-
ring should be replaced.
Notes:
1. When installing an o-ring fitting with an adjustable nut and washer, be sure to back
off the nut, washer and o-ring as far as possible before threading the fitting into the
port. Then turn the fitting into the port as far as possible with fingers and turn it
backward until it is oriented properly. Torque the nut with a wrench, while holding
the fitting with a wrench.
2. Lubricate all seals before assembling.
3. Take care not to over tighten pipe threads.
4. Do not use Teflon tape to seal pipe treads. Loctite-type (anaerobic) sealant is
preferred.
Leaks in component parts, such as pumps, valves and motors, that cannot be stopped
by tightening bolts, can usually be stopped by replacing the seals in the component.
Seal and packing replacement is the only maintenance which owners should attempt on
component parts, unless they have a well-equipped shop with mechanics trained in
hydraulic component overhaul.
Leakage in the pump suction line may not cause oil to appear externally, but may allow
air to enter the line during operation. The air entrained in the oil will cause pumps to be
noisy, and if allowed to continue, can damage the pump. If a pump becomes noisy,
immediately check the fluid level in the reservoir and be sure all suction fittings are tight.
If noise continues, squirt hydraulic fluid on the suction connections. Listen for a change
in the noise, and watch for oil being sucked into a small opening in the connection.
When the reservoir is full, the shutoff valve is open, and all suction connections are tight,
most pump noises will disappear. If they do not, a worn or faulty pump is indicated. On
a routine basis, all hoses should be checked for wear, deterioration, and physical
damage. Defective hoses should be replaced for maximum economy for the user.
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