Dover OPW 790B Handbuch - Seite 3
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Travel Stop
Upward
Snubber
Remove the (4) socket head screws in snubber
block, then rotate snubber block toward pivot
pin to allow for more upward travel or away
from pivot pin for less upward travel.
Replace the (4) screws and tighten.
Maintenance 790 Series
Lubrication
The torsion balance is provided with a self-lubricating Cylindrical Bearing. Only when operating
under severe conditions, a little oil may be applied to Bearing [7]. Pins [13] on Spring Arm [23]
and Link Arm [9] should have some oil quarterly.
Danger! Before performing any maintenance, always secure the Loading Arm and remove all tension from the counterbalance
DANGER
-- a torsion spring. The Loading Arm counterbalance spring contains a substantial amount of stored energy. You must relieve
this energy before any disassembly. Failure to remove all tension from the counterbalance spring of the Loading Arm before
maintenance may cause serious personal injury or death.
WARNING! While installing and using the Loading Arm, always wear adequate personal protection, including hard hats, gloves,
WARNING
and steel-toed work boots. Failure to wear adequate personal protection may cause serious personal injury or death.
WARNING! Always follow the procedures prescribed in this Document. Failing to follow the procedures prescribed may damage
WARNING
the Loading Arm and cause serious personal injury or death. Consult Loading Arm Installation, Maintenance & Safety Manual for
more details.
www.opw-es.com
Pivot Pin
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www.opw-es.com
9393 Princeton-Glendale Road
NOTE: All information subject to engineering and/or other changes. All trade names are copyrighted. Patents Pending. ©2022 OPW Engineered Systems
©2022 Delaware Capital Formation, Inc. All Rights Reserved. DOVER and the DOVER logo are registered trademarks of Delaware Capital Formation, Inc., a
wholly-owned subsidiary of Dover Corporation.
790 Series Counterbalance
Downward
Jam Nut
Loosen Jam Nut (located below lever arm) and
turn stop bolt in for more downward travel or
out for less downward travel. Then hold bolt
and tighten jam nut securely.
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Hamilton, Ohio, USA 45011
Stop
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Phone: (800) 547-9393