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Parker Hannifin Corporation
Helac/Cylinder Division
Enumclaw, Washington USA
www.helac.com
Helical, Hydraulic Rotary Actuators
L20 Series Service & Repair Manual
Catalog HY34-1120
Assembly
Assembly
19. Insert the cap screws (113) over the lock
pins. Tighten to 25 in-lbs. (2.8 Nm).
17.
Tighten the end cap (04) using a metal
bar. In most cases the original holes for
the lock pins will align.
18. Insert the lock pins (109) provided with
the Helac seal kit into the holes with the
dimple side up. Then, using a punch, tap
the lock pins to the bottom of the hole.