Scag Power Equipment STR - Manual (Page 45)

Section 7
39
CheckPlugDipstick
FullLine
1. Underneath the gearbox is a drain plug. This drain
plug is accessible through a hole in the gearbox
mounting plate and can be reached from the left side
of the mower.
2. Place a suitable container under the gearbox drain
plug and remove the drain plug.
3. After the fluid is drained, install the drain plug and
remove the check plug dipstick.
4. Fill the gearbox with Mobil SHC630 lubricant to
correct level as indicated on the dipstick.
5. Install the check plug dipstick and tighten securely.
7.11 HOPPER
The hopper screen should be cleaned after every 8 hours
of operation or daily, whichever occurs first. It may be
necessary to clean the screen more frequently when
cutting wet and/or dirty grass.
1. Remove the hopper screen from the hopper.
2. Wash the screen using a water hose until all the
screen holes are clean.
3. Install the cleaned screen in the hopper.
-IMPORTANT-
Do not use the hopper with the screen re-
moved. Grass clippings will discharge from
the hopper with the screen removed.
7.12 TRANSMISSION DRIVE GEARBOX
A. Checking Fluid Level
The fluid level in the transmission drive gearbox (Figure
7-11) should be checked after every 100 hours of
operation or bi-weekly, whichever occurs first.
1. Lift the operator's seat to its full upright position.
2. Remove the two plastic wingnuts holding the gearbox
cover in place.
3. Remove the check plug dipstick from the gearbox.
Visually check the fluid level on the dipstick. The
fluid level must be between the full line and bottom
of the dipstick (Figure 7-11). If the fluid level is low,
fill the gearbox through the check plug port with
Mobil SHC630 lubricant. Install the check plug
dipstick and tighten securely. (Figure 7-11)
B. Changing Lubricant
The lubricant in the transmission drive gearbox should be
changed after every 500 hours of operation or yearly,
whichever occurs first.
Figure 7-12 Cutter Deck Gearboxes
Check Plug Dipstick
Check/Fill Plug
Check/Fill Plug
Full Line
Cutter deck gearboxes can reach high
operating temperatures. Allow cutter deck
gearboxes to cool before servicing.
CAUTION:
7.13 CUTTER DECK GEARBOXES
A. Checking Lubricant Level
Figure 7-11 Transmission Drive Gearbox