Quick Installation Guide Preparations
QIG 8000-81-003 Ed 01 February 2020
8
Preparations
Before You Start the Installation
• Locate the valve bonnet/stem on which the
actuator is to be installed/repaired.
• If exchange/repair of existing actuator:
– Locate the name plate and identify the 'Type'
name.
– Compare the type name listed on the name
plate with the type name on the part(s) to be
replaced.
• Make sure that tools required (see below) are
available, before you start.
• If repai
r of existing actuator:
– Before dismounting the actuator make sure
to identify the actual cause of the error, pref-
erably by consulting ‘Trouble Shooting’ sec-
tion in this instruction.
• Advise the system operators and other relevant persons that maintenance is ongoing.
• Make sure that relevant operation systems are set to maintenance mode, and alternative means
of operation is ensured (if required).
• Read this instruction carefully before y
ou start the actual repair or installation.
• Follow all steps carefully, and do not skip any steps unless specified how and when.
Tools Required
• Fork wrenches. Different sizes depending on actuator model
• Unbrako hex keys (according to table on page 41)
• Long T-hex keys (according to table on page 41)
• Torque wrench (according to table on page 13)
• Long pair of tweezers
• Needle nose pliers
• Hydraulic hand
pump
• Multimeter
• Vernier caliper
• Loctite 542 adhesive (or similar)
Other Tools Required
Inspect the valve bonnet/stem prior to the installation/repair in order to identify if any tools, other
than those listed above, are required.
Indoor Facility
Make sure you have access to a workshop (indoor facility) for the actual repair.
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