Setting The Rotor To Initial Grade - Hunter STK-1 Instrucciones De Instalación

INSTallaTIoN INSTruCTIoNS for huNTEr STK-1
until the rotor's side flange compartment faces towards the off-field
side of the enclosure as shown (see Top View installation drawing).
Lower rotor, valve and swing joint assembly into the enclosure.

Setting the rotor to Initial Grade

It is recommended that the rotor be set to grade in two phases.
First an initial setting with a partial back-filling of gravel and then,
the final setting to grade later. Why? History has shown that
the enclosures are set to their grade prior to the final filling and
compaction of the surrounding surface outside of the enclosure.
The compacting process with large vibratory rollers can shift the
enclosures slightly. To avoid having to go back in and excavate
gravel within the enclosure in order to re-set the rotor grade, it
is best to set the rotor's final position only after the surrounding
surface has been leveled, compacted and is ready for the carpet
and carpet sub-base cushion material.
Setting the rotor to grade is a two-person to three-person operation.
One person needs to hold the rotor in position at the proper level
within the enclosure cover while a second holds the swing joint
assembly in position. The articulating swing joint provides the
means to set the rotor perfectly to grade so it must be manipulated
as the enclosure is back-filled. The third person does the back-filling
of the supporting material (gravel). Two people can accomplish the
task but it is faster with three.
To start the process of setting the rotor to grade, first find the
enclosure half-cover with the hole for the rotor and install it into
position on the enclosure. Now pull the rotor up into position within
the hole. If the riser assembly is pulled up, the rotor can be held in
this position during the back-fill process by hand. Or, the riser can
be held up with a tool such as the Hunter wrench (PN 461720), the
T-Handle tool (included in rotor box PN 319100), the Snap Ring Tool
(PN 052510) or a fabricated tool such a screw driver with a screw
from the rotor's logo cap welded to the tip.
With the rotor held within the enclosure cover by one person and
the swing joint held by another person such to make the rotor flush
to the cover, start the back-filling of the enclosure. Fill gravel evenly
ENG
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