SUTPHEN TOWERS, INC. 2012
Manual-2012
_SL75-SA75-SP70.docx
Page 21 of 55
8/31/2012
WATERWAY AND NOZZLE
OPERATION AND USE
The waterway through which water from the pump is transferred to the nozzle is a three (3) or
four (4) section telescopic aluminum device. It is located within the tower sections, mounted
and cushioned to eliminate any undue stress or strain under tower operations conditions.
The waterway is fed from the pump through the main feed line. It comes up through the
turntable and passes through a large, stainless steel flex tube which is directly attached to the
waterway. Special packing gland seals are provided at the attachment location of each
waterway section to assure constant alignment and eliminate wear to the tubes.
The feed line for the waterway is provided through a ball valve at the lower entrance of the
water supply. This is to make sure no undue water surge is applied to the waterway.
A relief valve is installed in the waterway system to help prevent excessive pressure in the
waterway. Should the operator retract the tower without opening the waterway drain, or
should pump pressure exceed the capacity of the waterway, the relief valve will open. Do not
exceed 250 PSI discharge pressure. The waterway drain should always be left open when tower
is not being operated.
Maintenance is minor and is described in the section under lubrication.
Before retracting the tower, make sure the nozzle and the waterway drain
are open to avoid compressing the water in the waterway. Failure to do so
can result in serious damage to the waterway.
DRAINING OF WATERWAY AND NOZZLE
Waterway drain valve at pump panel must be carried in the open position
when water tower is not being used.
PROCEDURE FOR DRAINING WATERWAY:
1. Open all nozzles at fly end of ladder.
2. Open waterway drain valve.
3. After all water has drained out, go to step #4.
4. Fully extend ladder.
5. Lower ladder off the side of truck at below grade angle.
6. Wait until water has drained completely from nozzles and drains at fly section.
7. Retract ladder and return to cradle.
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