MAINTENANCE INSTRUCTIONS
NOTE: There is an overload relief valve built into the hydraulic system of every new Ruger Crane.
This safety valve is set at the factory, under measured loadings, and opens at about 10% over the
rated capacity, preventing the crane from lifting.
IF THE CRANE FAILS TO HOLD OR LIFT ITS RATED LOAD.... REMOVE THE CRANE FROM
ALL SERVICE WORK. Contact the factory Customer Service Department at (440) 248-4700.
When calling the factory, please have your Model
and Serial Number ready, so we may better serve you.
EVERY TIME USAGE -
Check the Hydraulic Jack for oil leakage.
(See diagram #1, Page 7, Item No. 1)
Inspect the Safety Swivel Hook with Latch to ensure safe lifting of loads.
(See diagram #1, Page 7, Item No. 4)
WEEKLY -
Check the Pins for excessive wear.
(See diagram #1, Page 7, Items No. 9 and 10)
MONTHLY -
Check the Casters for excessive wear or uneven travel.
(See diagram #1, Page 7, Item No. 2 - 2.1 and Item No. 3 - 3.1)
QUARTERLY -
Check all welded joints.
Serial No. Tag -
Found on the
mast of the
Crane.
www.rugerindustries.com
E-mail: info@davidround.com
Phone: (800) 535-2725
Fax: (440) 248-8544
...a better way to work with heavy loads
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