Caution, Warning – Scag Power Equipment STT-31BSD User Manual

Page 39

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Section 7

35

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

CAUTION:

7.11 CUTTER DECK GEARBOX

A. Checking Lubricant Level

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 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.

B. Changing Lubricant

The lubricant in the cutter deck gearbox should be
changed 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.

Figure 7-12 Cutter Deck Gearbox

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.

390S0161

CUTTER DECK

GEARBOX

CHECK

PLUG

7.12 COOLING SYSTEM

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.

WARNING:

To avoid burns, always allow the engine to
cool before removing the radiator cap.

Fill to Bottom of

Filler Neck

030467-13

Figure 7-13 Coolant Level in Radiator

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