PART NO. 690963 REV: A-01
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Use and Maintenance
Sunstream recommends an annual inspection of the SunLift by an authorized Sunstream
Dealer or other qualified person.
For storage and off-season suggestions be sure to prevent rainw ater from accumulating in
your boat if you plan to leave it on the lift for long term storage.
Rainwater accumulating in your bilge can quickly increase your gross weight over the lift capacity.
1. At all times, make sure that you adjust the height of the lift to limit wave action against the
hull. Wave action will damage the lift and can take the boat off the lift.
2. We recommend disconnecting the Powerpack and storing it indoors for the winter if you are
not planning on using the lift for prolonged periods. To do this, simply disconnect the hoses
from your Powerpack by using the Quick Disconnects and connect the hoses together. This
will ensure that threads and seals remain clean.
Tip: If you have problems disconnecting the hoses from the Powerpack, use the depressurize fea-
ture
on the RC. to relieve the pressure. Do not disconnect.
the hoses when lift is pressured against the upper or lower stops.
3. Booster-charge your battery using a 10A charger at the beginning and end of the season. A
mid-season boost may be required for heavy use.
4. If your waterway freezes during the winter, you will need to remove your Sun Lift, as it will
be damaged by ice flow.
5. When storing the boat, the lift must be in the upright over center gravity lock position for
maximum safety. The over-center position will prevent the boat from lowering if you
experience a hydraulics leak.
6. Your Sun Lift can be left in any position when not in use. Although we do recommend
leaving the lift in the up position to prevent the bunks from becoming
‘
slimy
’,
and to avoid
creating a hidden underwater obstruction.
Battery Tips
Recommended Battery. Use a 12V group 27 marine deep-cycle battery with a minimum
reserve capacity of 160Ah (Amp hours). Reserve capacity is the most important feature.
Battery Capacity: The SunLift was tested to have a energy capacity of approximately 20 full cycles
using a new battery with a reserve capacity of 160 Ah. However, try not to dip below 50% battery
capacity, since the solar panel would have difficulty in recovering from such a deep draw.
Solar Charging rate: The following values are limits on full cycles (down and up) to keep battery
capacity at steady state condition. The capacity of the battery will allow for additional cycles for any
particular month. Table assumes all-day exposure with typical seasonal weather.
Max. Monthly Full Lifting Cycles (Down and Up)
using a single solar panel
(keeping steady state energy level)
Month
Seattle
(a northern cloudy city)
San Diego
(A sunny southern city)
Jan
2 cycles
27 cycles
Feb
8
29
Mar
14
29
Apr
18
31
May
21
27
Jun
22
25
Jul
24
28
Aug
24
31
Sep
19
29
Oct
12
29
Nov
4
28
Dec
1
25
If your solar panel does not keep the
battery charged try any of these
options:
Move your solar panel to an area
with less obstructed sunlight.
Add a second solar panel, or add
an a/c charger.
Booster charge your battery
mid-season.
Check cell water levels in
battery. Top up if necessary
with distilled water.
