Enerpac ST-121 User Manual

L1717 Rev. A 09/95IMPORTANT RECEIVING INSTRUCTIONSVisually inspect all components for shipping damage. If any shipping damage isfound, notify carrier

MAINTENANCEMaintenance is required when wear or leakage is noticed. Occasionally inspect allcomponents to detect any problem requiring service and ma

CLAMP ARM MACHINING SPECIFICATIONSSee Pressure and Flow Rate on page 9 to correctly measure the arm length. Todetermine the maximum clamping force fo

AustraliaEnerpacBlock V, Unit 3Regents Park Estate391 Park RoadRegents Park NSW 2143Tel: (61) (2) 743-8988Fax:8232-674-7747Belgium, Holland

SPECIFICATIONSOperating Specifications — Maximum Flow Rate ChartAlso see graphs on page 3.300 lb (1,3 kN) — Maximum Clamp Arm Length is 2.25" (57

Clamping Force -v- Arm Length GraphsPRELIMINARY INFORMATIONIMPORTANT: Failure to read and follow these instructions may lead tosystem malfunction or

MOUNTING SPECIFICATIONSMounting Threaded Body CylindersThreaded body cylinders can be threaded into a tapped hole, secured to the fixtureusing a mount

Mounting Upper and Lower Flange CylindersA WARNINGThe fixture must be capable of withstanding 5,000 psi (350 bar) hydraulicworking pressure when the c

INSTALLATIONThese Swing Cylinders are designed so that you can set the position of the clamparm after mounting the cylinder. If you need to change th

Attaching Clamp Arm1. Remove the retaining ring from the top of the plunger.2. Slide the clamp arm downover the plunger and use apliers to push the re

INSTALLATION (continued)Hydraulic ConnectionsTo make port connections, install fittings rated for 5000 psi (350 bar).DO NOT use thread sealant. Seali

OPERATIONSwing cylinders rotate 90° during the first portion of the stroke, continuing withoutrotation for the final clamping stroke. The straight do