Nelson F75 Big Gun Operation & Maintenance Instructions

F75 BIG GUN
SET UP FOR OPERATION:
1. Install desired Taper Ring size in ring nozzle cap. The ring
nozzle cap can be sufficiently tightened by hand.
2. Install sprinkler on riser of proper size and stability.
NOTE ON LUBRICATION: The F75 sprinkler is lifetime
lubricated and does not require periodic lubrication. The ball
bearings in the H.D. lower bearing operate in a water resistant
lubricant that is packed in the housing cavities and retained
by seals. If repair of the lower bearing is done, it is recom-
mended to use Nelson #6143 lubricant or a good grade of
water resistant lubricant such as Lubriplate 130-AA.
BE CAREFUL: Read operating instructions before operating
sprinkler or making any adjustments. Never make adjustments
or perform service while sprinkler is in operation. Stand clear
of operating sprinkler. Stand clear of high velocity water
stream. Never direct water stream onto roadway or electrical
transmission lines.
F75 DRIVE ARM ASSEMBLY COMPONENTS
10189 Spring
10192 Spacer
6603 Nut
4 8311 Screw,
#8-32 x .375”,
Self Tapping Pan Head
WARRANTY AND DISCLAIMER: Nelson Big Gun
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 provision of
the warranty, nor to make any representations or warranty not contained herein.
Nelson Irrigation Corporation 848 Airport Rd. Walla Walla, WA 99362-2271 USA Tel: 509.525.7660 Fax: 509.525.7907 info@nelsonirrigation.com Web site: www.nelsonirrigation.com
OPERATION & MAINTENANCE INSTRUCTIONS
®
6598 Ball Bearing
10214 Spacer
10194 Spacer
10191 Cam
10231 Cap Assembly, Arm Bearing
Consists of: 1 10190 Cap, Arm Bearing
1 6563 O-Ring
Sprinklers are warranted for one year from date of original sale to be free of defective materials and
®
F75 BIG GUN
Arm Weight
Lower Bearing Assembly
The F75 is available in fixed trajectory angles of 21°,
24°, 27°
6598 Ball Bearing
®
Drive Arm
Nozzle
10377 O-Ring, Non-Standard
.459 I.D. x .040 C.S.
10730 Spacer, Teflon Coated
6600 Seal
OM-F75-2
Drive Vane