Helac L20 Series - General Safety Guidelines; Product Introduction

3
Parker Hannifin Corporation
Helac/Cylinder Division
Enumclaw, Washington USA
www.helac.com
Helical, Hydraulic Rotary Actuators
L20 Series Service & Repair Manual
Catalog HY34-1120
Product Introduction & Safety Guidelines
General Safety Guidelines
Product Introduction
Many L20 actuator applications have several pinch
points with the potential for severe injuries. Use
extreme caution and remain clear of all rotating
components when bleeding the hydraulic system
and whenever the machine is in operation.
After rebuilding or repairing an actuator, it is
necessary to bleed all air from the actuator as well
as the hydraulic system of the machine. See page
25 for bleeding instructions.
Exercise extreme caution while bleeding the
actuator -- keep hands, ngers, and other limbs a
safe distance from all rotating components.
For over 45 years, Helac Corporation has
been recognized for innovation in design of
hydraulic rotary actuators and construction
equipment attachments. Helac products
are renowned for their tremendous torque
output, compact congurations, exceptional
load bearing capabilities, and rugged,
reliable performance. Over 1,000 mobile,
industrial, construction and mining machinery
manufacturers around the world depend on
Helac actuators to perform such functions as
rotation, positioning, manipulation, vehicle
steering and indexing. Helac's L20 Series
rotary actuators are used widely to rotate work
platforms on self-propelled aerial lifts where
they have become the industry standard.
The L20 Series is available in di󰀨erent sizes
and various mounting congurations (for more
details see page 4).
Avoid personal injury and
machinery damage:
Read the Service and Repair Manual
for proper installation, maintenance
and repair procedures.
Spraying fluids.
Contents under pressure.
Wear approved eye protection.
Use caution when removing
port plugs and fittings.
To avoid contamination
to machined parts:
Make sure work area is clean.
To avoid injury or damage
to product:
Secure product to slotted table or vise.