3304 cat diesel generator set
3304 cat diesel generator set
(OP)
The control rod at 1800rpms is not steady, it looks like it's "jiggling" and once in a while it will surge as to require more fuel; but no extra load is on it.. any help?? it's on line but aggrevating..





RE: 3304 cat diesel generator set
RE: 3304 cat diesel generator set
Whatever it is, it is essential that the rack and related internal linkage moves freely and without stiction.
Check the lubrication level in the governor. A worn governor or even a sticking plunger can give similar symptoms.
PJGD
RE: 3304 cat diesel generator set
RE: 3304 cat diesel generator set
Hope the linky works. File is theory of operation and troubleshooting guide for Woodward UG governor. Search terms were "Woodward UG governor symptoms".
"Schiefgehen wird, was schiefgehen kann" - das Murphygesetz