E.H. Wachs
Part No. 14-MAN-35, Rev. 0-0616
19
Operating Notes
Make sure that the hydraulic circuit is properly plumbed
and appropriate for the available amount of oil from the
unit. A circuit with long hoses or a high-capacity tool could
lower the reservoir level considerably. The power unit must
be plumbed to an open center valve.
If the hydraulic circuit is improperly plumbed, pressure will
build immediately and dump over the relief valve setting,
causing excessive heat.
Cautions
Escaping hydraulic fluid under pressure can have sufficient
force to penetrate skin, causing serious personal injury.
Before disconnecting lines, be sure to relieve all pressure.
Before applying pressure to the system, be sure all connec-
tions are tight and that lines and hoses are not damaged.
Fluid escaping from a very small hole can be almost invisi-
ble. Use a piece of cardboard or wood rather than hands to
search for suspected leaks.
If injured by escaping fluid, SEE A DOCTOR AT ONCE.
Serious infection or reaction can develop if proper medical
treatment is not administered immediately.
See the safety guidelines in the next chapter.
M
AINTENANCE
NOTE
: A hydraulic hose fail-
ure could be very hazardous;
frequent inspection is import-
ant.
Every time you use the power unit, inspect all fasteners,
hydraulic hoses, and fittings.
Every time you use the power unit, check the hydraulic oil
level in the reservoir. Check the oil level periodically during
extended use.
Check the condition of the hydraulic fluid, looking for con-
taminants, dirt, or discoloration. Change the fluid as soon as
it becomes dirty or discolored. It is recommended that you
change the oil every 200 hours of operation.
