repair, reinstall, and retest PVC liner until satisfactory. For safety,
pressure test shall only be performed when liner is fully inserted in the
well casing and well.
2.4.6.4
Cylinder Installation
Remove surface moisture from inside of liner by wiping with dry cloth or
purging with warm dry air prior to installing elevator cylinder. Install
cylinder. Provide elevator manufacturer's recommended supports under
cylinder head and attach cylinder head supports to cylinder and pit support
channels in accordance with elevator manufacturer's instructions. Set
cylinder into the pit. Plumb cylinder using "Spider-Bob" method.
2.4.6.5
Casing Fill
Following cylinder installation, fill the space between PVC liner and steel
casing with fine, dry, salt-free sand in 610 mm 24 inch lifts with tamping
between each lift. Continue filling with sand up to the level at the pit
floor seal.
2.4.6.6
Liner Inspection and Test Tube
Provide a 19 mm 3/4 inch PVC test tube with strainer located within 152 mm
6 inch of bottom of liner. Exclude sand from strainer and admit air, water
or oil. Provide top of test tube with removable cap to exclude foreign
matter.
2.4.6.7
Cylinder Bottom Location Fill
At the option of the contractor, clean dry sand may be used up to and not
more than 610 mm 24 inch above the bottom of the cylinder, to stabilize the
cylinder. Empty the remainder of the liner.
2.4.6.8
Seal
Seal gap between cylinder and PVC liner and gap between liner and well
casing with foam insert strong enough to retain and support final grouting.
Provide 21 MPa 3000 psi grout to a minimum of 102 mm 4 inch thickness and
level top of final grouting with pit floor.
2.4.6.9
Containment
Protect exposed portions of hydraulic elevator oil supply line that are
installed below ground, including portions encapsulated in concrete, or
covered by construction, with continuous Schedule 80 PVC containment
system, extending from machine room to elevator cylinder head connection.
Coat and wrap line similar to elevator cylinder. Cap and seal containment
system annular space.
2.4.7
Motors
Provide NEMA MG 1 induction motors with squirrel cage, motors with
drip-proof enclosure, continuous rated, maximum 1800 rpm, and Class F
insulation rated at 120 starts per hour.
2.4.7.1
Insulation Resistance and Motor Nameplate Data
Provide minimum of one megohm insulation resistance between conductors and
motor frame. Provide motor nameplate listing rated wattage (horsepower),
SECTION 14240
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