Table 25 (Continued)
Valve operator pilot Check control through one full cycle of
Lubricate pins, linkage, packing glands,
and adjustment rod threads as necessary;
remove corrosion products; check for
leakage and repair.
Disassemble; inspect unit and clean
strainers; examine diaphragm for failure;
regrind or replace worn valve seats.
Remove valve from service; inspect float
for leaks, and pins and linkage for
corrosion; remove corrosion products;
Inspect for condition of masonry, steps,
and manhole covers; repair as necessary.
Inspect and lubricate.
Valve unit and
Disassemble; inspect hydraulic cylinder
and repair; inspect valve, repair, and paint,
Inspect the closure control mechanism (if
any); clean and adjust as necessary;
check pin wear if balanced disk type;
check seating on ball type.
Disassemble; clean, reseat, and repair as
Inspect float; repair as necessary.
Inspect valve and valve operating