Scag Power Equipment STT61V-31KB-DF Manuel D’Utilisation

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Section 7
TIRES
7.10 
Check the tire pressures after every 8 hours of operation 
or daily.
 
Caster Wheels   
Flat Free
 
Drive Wheels   
12 PSI
CUTTER DECK GEARBOx
7.11 
A. CHECKING LUBRICANT LEvEL
 CAUTION
The cutter deck gearbox can reach high operating 
temperatures. Allow the cutter deck gearbox to 
cool before servicing.
The fluid level in the cutter deck gearbox should be 
checked after every 100 hours of operation or bi-weekly, 
whichever occurs first.
Lower the cutter deck to to its lowest position to gain 
1. 
access to the cutter deck gearbox.
Clean and remove the check plug from the side of 
2. 
the gearbox. See Figure 7-9.
390S0161
CUTTER DECK
GEARBOX
CHECK
PLUG
Cutter Deck Gearbox
Figure 7-9. 
Visually check that the lubricant level is up to the 
3. 
bottom edge of the check plug hole. If lubricant is 
low, add SAE 80W90 lubricant through the check 
plug hole in the gearbox until it is level with the 
bottom of the check plug hole. Install the check plug 
and tighten securely.
B. CHANGING LUBRICANT
The lubricant in the cutter deck gearbox should be 
changed after every 500 hours of operation or yearly, 
whichever occurs first.
Place a suitable container beneath the cutter deck 
1. 
gearbox and locate the gearbox drain plug.
Remove the drain plug, drain the lubricant into the 
2. 
container and properly discard it.
Re-install the drain plug and add SAE 80W90 
3. 
lubricant through the check plug hole in the gearbox 
until it is level with the bottom of the check plug hole. 
Install the check plug and tighten securely.
COOLING SYSTEM
7.12 
 WARNING
To avoid burns, always allow the engine to cool 
before removing the radiator cap.
A. CHECKING COOLANT LEvEL
The coolant level should be checked before each day of 
operation.
Remove the radiator cap by turning it slowly 
1. 
counterclockwise to the first stop and allow any 
pressure to be released. Push down on the cap and 
turn counterclockwise to remove.
Visually check the coolant level. The coolant level 
2. 
should be up to the bottom of the filler neck as 
shown in Figure 7-10. Add a mixture of coolant and 
soft water as needed.
- NOTe -
Refer to the coolant manufacturer's instructions for 
the proper coolant mixture ratio.