Nelson BIG GUN Series Operating Instructions

SRNV100 BIG GUN
SET UP FOR OPERATION:
1. Install 100T taper bore nozzle or
100R ring nozzle. The SRNV100 is
not designed to operate with the
100TR taper ring nozzle. If using the
ring nozzle set, install desired ring size
in the ring nozzle cap. The ring nozzle
cap can be sufficiently tightened by
hand. NOTE: If the 100R is used, it is
supplied with the ring cap, part number
7872. If any other cap is used, the
nozzle valve will not completely close.
2. To install the SRNV100, orient the
lower unit so the solenoid or hose
bracket will be located on the right
when viewed from the rear of the Big
Gun looking downstream.
3. Adjust location of stops to give desired
arc of coverage. Stops must be mounted
so that the arrows point toward each
other and the trip lever is located between
the arrows. If the stops are reversed on
the wrong end of the arc then the Big
Gun will fail to reverse.
4. The SRNV100 is factory set for normal
rotation speed. If a faster or slower
rotation speed is desired, move the arm
weight backward for faster operation
or forward for slower operation. The
SR100 low pressure drive vane kit,
part number 9857, is available to
enhance the drive when operating in
a nozzle range of .5”-.65” 100T and
pressure below 60 psi. NOTE: If the
SRNV100 is mounted on a tilted riser
of 10 degrees (or 17% slope) or more,
a 100CBK counter balance kit is
recommended to prevent ‘ back-
sliding’ and improve proper rotation
throughout the entire arc setting.
WARRANTY AND DISCLAIMER
Nelson Big Gun Sprinklers are warranted for one year from date of original sale to be free of defective materials and workmanship when used within the working
®
specifications for which the product was designed and under normal use and service. The manufacturer assumes no responsibility for installation, is limited solely to
replacement or repair of defective parts, and the manufacturer will not be liable for any crop or other consequential damages resulting from any defects or breach of
warranty. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR PARTICULAR PURPOSES AND OF ALL OTHER OBLIGATIONS OR LIABILITIES OF MANUFACTURER. No agent, employee or representative of the manufacturer
has authority to waive, alter or add to the provisions of the warranty, nor to make any representations or warranty not contained herein. This product may be covered
by one or more of the following U.S. Patent Numbers 3,744,720 and 3,559,887 and other U.S. Patents pending or corresponding issued or pending foreign patents.
Nelson Irrigation Corporation 848 Airport Road Walla Walla, WA 99362-2271 USA Tel: 509.525.7660 Fax: 509.525.7907 E-mail: info@nelsonirrigation.com Web site: www.nelsonirrigation.com
SRNV100 BIG GUN
OPERATION AND ADJUSTMENT INSTRUCTIONS
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Shift Lever
Trip Lever
Solenoid
5. If installing the SRNV100E (with solenoid), connect the solenoid wires to the
proper voltage source. Energizing the solenoid with the proper voltage results
in the valve opening. If installing the SRNV100H hydraulically controlled
(without solenoid), connect the actuator feed hose to the appropriate control
pressure circuit. Application of hydraulic pressure (equal to or greater than
SRNV100 base water pressure) to the actuator causes the nozzle valve to
close. If actuator control pressure (line pressure) is approximately 20 psi or
below, low pressure SRNV closure kit, part number 9924, is recommended to
provide reliable operation.
6. Be sure the entire control system is operating properly and that the hydraulic
fittings are securely installed. Failure to do so could prevent the nozzle valve
from closing, possibly causing personal injury or property damage. Observe
an entire opening-closing-opening cycle for proper operation.
WARNING!
1. Read operating instructions before operating sprinkler or making any
adjustments.
2. Never make adjustments or perform service while sprinkler is in operation.
3. Stand clear of high velocity water stream.
4. Never direct water stream onto roadway or electrical transmission lines.
5. Stay clear of nozzle valve linkage during operation. High clamping forces exist.
6. Stand clear of sprinkler during operation. Abrupt water spray exists during
opening and closing of valve.
7. To avoid injury or damage, check for proper operation of control system
before using nozzle valve.
Drive Arm
Arm Weight
Actuator
Actuator Feed Hose
OA-SRNV100-2 8/01
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Drive Vane
Valve Seat
Nozzle
Nozzle Lever
Toggle Linkage