Operator's Manual

Figure41
1.Vent/Fillplug
3.Drainplug
2.Checkplug
3.Makesureoilisuptothebottomofthecheckplug
holeingearbox(Figure41).
4.Ifoillevelislow,removevent/llplugfromtopof
gearboxandreplenishoilasrequired.
5.Installplugs.
ChangingtheGearboxOil
ServiceInterval:Aftertherst50hours
Every500hours
Thegearboxislledwith80W–90gearoilorequivalent.
1.Cleandebrisfromvent/llpluganddrainplugto
avoidcontamination(
Figure41).
2.Removethevent/llplugtorelieveairdraw.
3.Positionadrainpanunderthedrainplugandremove
theplug.
Note:Thehighviscosityofcooloilwillextendthe
draintime.(approximately30minutes)
4.Aftertheoiliscompletelydrained,reinstallthedrain
plug.
5.Fillthegearboxwithhighquality80W-90gearlube.
Usethefollowingcharttodeterminethegearbox
oilcapacity.
Model
GearCaseCapacity
SR482quarts(1.9liters)
SR542quarts(1.9liters)
SR54–S2quarts(1.9liters)
SR702quarts(1.9liters)
SR70–S2quarts(1.9liters)
SR724quarts(3.8liters)
SR754quarts(3.8liters)
6.Installthevent/llplug.
7.Checktheoillevelandreplenishasrequired.
Inspecting/AdjustingtheDrive
Chain
ServiceInterval:Beforeeachuseordaily
Every50hours
Checkthedrivechainfordamageandcorrect
adjustment.Thechainshouldhaveapproximately1/2
inch(12.7mm)ofoveralldeection(1/4inch[6mm]in
eachdirection).
Chaintensioncanbeadjustedbyslightlylooseningthe
mainjamnutandtighteningthejamrodtodesired
position(
Figure42orFigure43).Donotadjustthe
chaintensionwhenthechainishotorwarm.
Figure42
ModelsSR54,SR54–S,SR70,&SR72
1.Drivechain3.Jamrod
2.Jamnut
31