Scag Power Equipment STT61V-27KA Manuel D’Utilisation

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Section 7
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 
(LIqUID-COOLED MACHINES ONLY)
 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.
Fill to Bottom of
Filler Neck
030467-13
Coolant Level
Figure 7-10. 
Replace the radiator cap. Push down on the cap and 
3. 
turn clockwise until it stops.
- NOTe -
The  cooling  system  should  be  flushed  and  the 
coolant replaced every 500 hours of operation or 
annually. See your Scag dealer for proper coolant 
replacement.
B. CLEANING THE RADIATOR DEBRIS SCREEN
After each day of operation, remove and clean the radiator 
debris screen.
 CAUTION
To  avoid  personal  injury,  always  wear  safety 
glasses when using compressed air.
Pull the debris screen up to remove.
1. 
Clean the debris screen with compressed air or a 
2. 
water hose.
- NOTe -
Check the radiator for excessive debris and clean 
with  compressed  air.    Never  spray  a  hot  engine 
with  water,  use  only  compressed  air  to  remove 
debris.
Re-install the debris screen to the radiator.
3.