Assembly Instructions
D21d
28
● Check the coolant levels in the radiator
and overflow tank. If additional coolant is
needed, refer to
Engine Cooling System
on page 70
.
WARNING
DO NOT remove the radiator pressure cap
when engine is hot.
● Check operation of electric radiator fan by
turning ignition key to the
ON (RUN)
position.
F
CHECK GEAR AXLE OIL LEVEL
Refer to
Gear Axle Lubrication on page 63.
F
INSPECT FIVE (5) BELTS
Engine PTO Drive, Jackshaft Drive, Hydrostat-
ic Ground Drive, Engine Alternator Belt, and
GHS Blower Drive (if equipped).
F
CHECK GRASS CATCHER EXHAUST
SCREEN IS CLEAN (GHS MODEL)
F
CHECK HYDROSTATIC TRANSMISSION OIL
LEVEL
Refer to
Checking Hydrostatic Transmission
Oil Level on page 64.
F
CHECK FUNCTIONS OF INSTRUMENT
PANEL AND WARNING HORN
Turn the ignition key to the
ON (RUN)
position.
Voltmeter, Oil Pressure Warning Light, and
Warning Horn should all operate, indicating
normal function.
F
CHECK FUNCTION OF SAFETY INTERLOCK
SWITCHES
Refer to
Safety Switch System on page 78
to check for proper operation of safety switch-
es, both during engine starting and with the
operator leaving the seat with tractor moving
forward or with the mower blades engaged.
F
CHECK TIRE PRESSURE
Deck Caster Wheel* = 20 PSI (137 kPa)
Drive
= 15 PSI (103 kPa)
Tailwheel
= 20 PSI (137 kPa)
* If equipped with optional pneumatic tires
F
CHECK SECURITY OF DRIVE WHEEL BOLTS
The eight (8) lug bolts mounting the drive tires
should each be torqued to 75 to 85 lb·ft (102
to 115 N·m).
F
CHECK DECK IS SECURELY ATTACHED
Check for correct deck attachment (hitch pins
and counterweight springs).
F
ADJUST MOWER CUTTING HEIGHT, IF
REQUIRED
Position the hitch pins in the four deck support
pins. Refer to the
Cutting Height Adjust-
ment
decal on the deck gearbox cover.
NOTE:
For DS60 deck, see
DS60-3 Cutting
Height on page 44
for height adjustment.
F
CHECK AND CLEAN GRASS BUILDUP
UNDERNEATH MOWER DECK (and inside
GHS blower, if equipped)
Refer to
GHS Blower on page 72
for blower
cleaning information.
DANGER
Never operate cutter blades with deck in
raised position because it is hazardous.
The tilt-up deck can be secured in the raised
position by unlocking the deck lock levers on
each side of the carrier frame and inserting
the deck hook into the tilt-up latch on the
tractor body. Before operating the tractor,
make sure to re-engage the deck lock levers
after lowering the deck to the normal operating
position.
