(2)
Loosen the clamp and remove the steering roll sprinkler hose from the steering roll outlet pipe (17).
(3)
Unscrew and remove the steering roll sprinkler pipe (16), street elbow (3), and steering roll valve (29).
(4)
Loosen the hose clamps (11) and remove the hose (12) from the outlet pipe (4).
(5)
Unscrew and remove the outlet pipes (4), connector, and street elbow (3).
(6)
Unscrew and remove the street elbow (8), connecting the outlet pipe (4) with the compression roll valve
(9).
(7)
Unscrew and remove the close nipple (10).
(8)
Remove the clamp screws (6) and clamps (5). Remove the compression roll sprinkler pipe.
e. Inspection and Repair.
(1)
Inspect the inside and outside of the sprinkler pipes for corrosion, breaks, cracks, etching, and sediment
accumulation. Clean the pipes, using strong water pressure. Replace the pipes if cracked, corroded,
twisted, or damaged.
(2)
Inspect the pipe hose for swollen, cut, frayed, or damaged rubber. Replace all damaged, cut, or damaged
pipe hoses.
(3)
Check the hose clamp screws for damaged, corroded, or stripped threads. Replace all defective hose
clamp screws and nuts. Inspect the hose clamps for corrosion, breaks, cracks, and warpage. Replace
damaged or worn hose clamps.
(4)
Inspect the petcocks for leaks around the valve stem. Replace leaking petcocks. Check the petcock
mounting screws for damaged, corroded, galled, or stripped threads. Replace the petcocks if the
mounting threads are worn, corroded, or damaged.
(5)
Check all valves for corrosion, wear, and leaks. Do not attempt to repair a leaking valve. Replace all
corroded, damaged, or leaking valves. Check the valve mounting threads for wear, damage, and galling.
Replace the valve if the threads are stripped or damaged.
f.
Installation.
(1)
Coat all pipe threads with a sealer of good quality.
(2)
Install the compression roll sprinkler pipe (1) and tighten the mounting screws (6) and clamps (5).
(3)
Install the street elbow (8), compression roll valve (9), and close nipple (10).
(4)
Install the outlet pipes (4), street elbows (3), and tee-connecter. Make sure that all joints are tight.
(5)
Install the hose (12) and tighten the hose clamps (11) securely.
(6)
Install the steering roll sprinkler valve (29), sprinkler pipe (16), street elbow (3), and outlet pipe (17).
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