NIRE-170-1-6
52
7. Lifting Procedure
F
ollow these procedures when lifting the “NHP210 Series” modules for maintenance.
(1) If guide rail system is not installed in the membrane tank, drain the activated sludge from
membrane tank.
(2) Disconnect the manifold from the filtrate water line and disjoint the bolts jointing the
element block with the aeration block in case bolts/nuts are applied for connecting both
blocks.
(3) Hook the chain/sling attached with element block to the lifting device, and you can lift up
the element blocks using chains/slings.
(4)
When lifting double-decked module NHP210-600D, do not lift upper element block
and lower element block all together. Upper/lower element block has to be lifted
one by one to avoid distortion or damage to the element block which may cause
severe accident. See below instruction.
When lifting
“NHP210 Series”, attach chains or slings to the lifting
lugs. Slowly raise the module straight up. Avoid sudden changes in
movement to minimize shaking the module. Never allow
personnel to stand under the
“NHP210 Series” during lifting
Use chains or slings rated for the weight being lifted. Check the
condition of each part before lifting. Never lift or operate the
module with worn or damaged parts.
When lifting double-decker module, do not lift upper element
blocks and lower element blocks at one time. Disconnect the upper
block from the lower block prior to lifting upper/lower element
blocks should be lifted separately.
Please wear the appropriate personal protective equipment (e.g.
work gloves) in order not to cut hand on the edge of the module
frame.
DANGER
!
DANGER
!
DANGER
!
CAUTION
!
