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PROBLEM:
Drive arm does not swing properly.
SOLUTION:
A. Nozzle or barrel partially plugged with debris — unplug.
B. Arm Shaft loose — tighten nut.
C. Bearings dirty or corroded — replace.
D. Insufficient Pressure — 40 PSI minimum for irrigation.
E. Broken or worn drive arm spoon — replace.
PROBLEM:
Insufficient water distribution close to the sprinkler.
SOLUTION:
Remove secondary plug, install secondary nozzle.
PROBLEM:
"Ragged" or turbulent stream discharge.
SOLUTION:
A. Debris trapped in nozzle barrel — remove.
B. Inlet riser connection does not allow smooth flow of water into gun — insert
C. Nozzle worn excessively or damaged — replace.
PROBLEM:
Lower bearing hard to rotate.
SOLUTION:
Service lower bearing. (Request SR100 Operation & Maintenance Instructions
for procedure.)
BE CAREFUL!!
1. Read operating instructions before operating sprinkler or making any adjustments.
2. Never make adjustments or perform service while the sprinkler is in operation.
3. Stand clear of an operating sprinkler.
4. Stand clear of the high velocity water stream.
5. Never direct the water stream onto a roadway or electrical transmission lines.
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 crops 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 provision of the warranty, nor to make
any representations or warranty not contained herein.
Nelson Irrigation Corp. 848 Airport Rd. Walla Walla, WA 99362-2271 USA Tel: 509.525.7660 Fax: 509.525.7907 E-mail: info@nelsonirrigation.com Web site: www.nelsonirrigation.com
F100 BIG GUN
625V (2 1/2") or 600V (2") stream straightener vane into 2 1/2" or 2" x 6"
pipe at base of gun.
OPERATING AND ADJUSTMENT
®
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