Scag Power Equipment STT-31BSG Cutter Deck Gearbox, Checking Lubricant Level, Cooling System

Section 7

7.11 CUTTER DECK GEARBOX

A. Checking Lubricant Level

CAUTION:

The cutter deck gearbox can reach high operating temperatures. Allow the cutter deck gearbox to cool before servicing.

2.Remove the drain plug and drain the lubricant into the container and properly discard it.

3.Re-install the drain plug and add EP-80/90 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.

7.12 COOLING SYSTEM

CUTTER DECK

GEARBOX

CHECK

PLUG

390S0161

Figure 7-12 Cutter Deck Gearbox

The fluid level in the cutter deck gearbox (Figure 7-12) should be checked after every 100 hours of operation or bi-weekly, whichever occurs first.

1.Lower the cutter deck to to its lowest position to gain access to the cutter deck gearbox.

2.Clean and remove the check plug from the side of the gearbox (See Figure 7-12). Visually check that the lubricant level is up to the 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.

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.

1.Remove the radiator cap by turning it slowly counterclockwise to the first stop and allow any pressure to be released. Push down on the cap and turn counterclockwise to remove.

2.Visually check the coolant level. The coolant level should be up to the bottom of the filler neck as shown in figure 7-13. Add a mixture of coolant and soft water as needed.

-NOTE-

Refer to the coolant manuafacturer's instruc- tions for the proper coolant mixture ratio.

Fill to Bottom of

Filler Neck

B. Changing Lubricant

The lubricant in the cutter deck gearbox should be changed after every 500 hours of operation or yearly, whichever occurs first.

1.Place a suitable container beneath the cutter deck gearbox and locate the gearbox drain plug.

34

030467-13

Figure 7-13 Coolant Level in Radiator