Anchoring methods
1.
Onground Anchoring - for securing to a completely level, quality concrete
surface, at least 12cm thick and preferably steel reinforced.
a)
Use the 4 holes in the Stub Mast flange (#12) as a template to mark the
concrete surface for drilling 4 holes.
b)
Use a 10mm masonry drill bit and drill the holes to 80mm deep.
c)
If necessary insert galvanized washers under the flange to ensure the Stub
Mast is vertical.
d)
Secure the Stub Mast with 4 galvanized or stainless steel concrete fasteners,
10mm diameter and at least 75mm long, eg Ramset Dynabolt 10080HSS,
Dynabolt 10075GH, Ankascrew AS10075WGM or Powers Blue-Tip
BTCSK10075.
2.
Inground Base Anchoring - for securing to other surfaces. Requires the
purchase of the optional Shelta Inground Base and approximately 7 x 20kg bags of
Post Hole Concrete Mix from your local hardware.
a)
Attach the Stub Mast (#12) to the Inground base flange using 4 countersunk
screws supplied with the Inground Base.
b)
Dig a hole of 30cm diameter and 60 to 80cm deep in the required location.
c)
Mix the concrete according to the manufacturer’s recommendations.
d)
While holding the base and stem in position, fill the hole with concrete.
e)
Use a spirit level to ensure the Stub Mast is vertical.
f)
Allow the concrete to cure for at least 4 days.
3.
Timber Decks - to mount the umbrella on a deck, we recommend that you
consult a builder or engineer to ensure that the Stub Mast is properly connected to a
secure structure (eg a pair of 25cm joists).
4 Concrete Fasteners
(not provided)
4 Countersunk Screws
(supplied with base)
Installing Your Asta
Check that the carton includes the main umbrella assembly, the stub mast, the crank handle and the protective
cover.
Read these instructions carefully and if still in doubt, please engage the services of a qualified builder or tradesman.
When considering a location for your Asta, remember to allow adequate clearance for the available 360° rotation
around the anchor point - approximately 4.3 metres radius from the mast is required.