13
MAINTENANCE SAFETY
nn
nn
n
Always perform maintenance with the machine
parked on a hard level surface; with the engine
stopped and the PTO disengaged; with the park
brake set; and with the key removed from the
ignition.
nn
nn
n Always remove the grounded (-) clamp from
the battery when performing maintenance on the
engine, clutch, or any other electrical system.
nn
nn
n Never work under the machine without jack
stands or other equivalent safety blocks. Do
NOT rely solely on mechanical or hydraulic
jacks or lifts for support. Always use ad-
equate wheel chocks on tires remaining on
the ground.
nn
nn
n Hydraulic hoses can fail due to physical dam-
age, kinks, age, and exposure. Check hoses
regularly. Replace damaged hoses.
nn
nn
n Escaping fluid under pressure can penetrate
the skin causing serious injury. Avoid the
hazard by relieving pressure before discon-
necting hydraulic or other lines. Tighten all
connections before applying pressure. If an
accident occurs, see a doctor immediately.
Any fluid injected into the skin must be surgi-
cally removed within a few hours or gangrene
may result.
nn
nn
n Search for leaks with a piece of cardboard.
Protect hands and body from high pressure
fluids.
nn
nn
n If it is necessary to run an engine in an en-
closed area, remove the exhaust fumes from
the area with an exhaust pipe extension. If an
exhaust pipe extension is not available, work
near open doors and get outside air into the
area.
nn
nn
n Waste products such as used oil, fuel, cool-
ant, and batteries can harm the environment
and people. Dispose of waste products
properly.
nn
nn
n Never attempt to disconnect or alter any part
of the safety interlock systems.
nn
nn
n Keep engine free of grass, leaves, or excess
grease to reduce fire hazard and minimize en-
gine overheating.
nn
nn
n Do not change engine governor settings.
nn
nn
n Keep tractor and attachments in good oper-
ating condition and all safety devices in place.
nn
nn
n Periodically tighten all bolts, nuts and screws.
Check that all cotter pins are properly in-
stalled to ensure equipment is in a safe
condition.
nn
nn
n
Check brake operation frequently. Adjust
and service as required.
STORING SAFELY
nn
nn
n Never store equipment with gasoline in the
tank inside a building where fumes may reach
an open flame, spark or pilot light as on a fur-
nace, water heater, clothes dryer, or other
gas appliance. Allow engine to cool before
storing in an enclosure.
nn
nn
n If engine is to be unused for 30 days or more,
add a fuel stabilizer to the fuel system. Fuel
stabilizer (such as STA
.
BIL
®
) is an accept-
able additive in minimizing the formation of
fuel gum deposits during storage. Add stabi-
lizer to gasoline in fuel tank or storage
container. Always follow mix ratio found on
stabilizer container. Run engine at least 10
minutes after adding stabilizer to allow it to
reach the carburetor.
nn
nn
n If draining fuel tank, drain fuel into an ap-
proved container outdoors and away from
open flame.
nn
nn
n Always provide adequate ventilation when
running engine indoors. Exhaust gases contain
carbon monoxide, an odorless and deadly
poison.
nn
nn
n Remove attachments from tractor. Remove
all accumulated debris from attachments and
tractor.
nn
nn
n Sand areas where paint is chipped and re-
paint to prevent rust. Lubricate all locations
to prevent moisture damage during storage.
44
ItemItem
ItemItem
Item
OrderOrder
OrderOrder
Order
DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No.
No.No.
No.No.
No.
ItemItem
ItemItem
Item
OrderOrder
OrderOrder
Order
DescriptionDescription
DescriptionDescription
Description
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No.No.
No.
No.No.
No.No.
No.
WIRING DIAGRAM
604974 Wiring Assembly - 721D
161131 Decal - Console
1 141160 Coolant Temperature Gauge
2 141200 Voltmeter Gauge
3 182327 Oil Indicator Light
4 182328 Temperature Indicator Light
5 182325 Battery Indicator Light
6 182326 Brake Indicator Light
7 184179 Light Switch
8 183925 Clutch Switch
9 183827 Ignition Switch
10 183860 Safety Switch - Rt. Steering
720160 Rt. Steering Switch Mount
11 183860 Safety Switch - Lt. Steering
720161 Lt. Steering Switch Mount
12 182253 Worklight Assembly
(includes item 13)
13 182005 Light Bulb
14 182251 Bezel
15 603350 Fuel Solenoid
16 184220 Module - Switch Interlock
17 181735 Fuse Holder
181470 Fuse 30 Amp Auto
18 141222 Temperature Sender
19 183871 Seat Safety Switch
20 184272 Relay
21 181722 Fuse Block
184458 1 Wire Clip
184460 2 Wire Clip
184472 Double Clip
22 181470 Fuse 30 Amp Auto
181465 Fuse 15 Amp Auto
181462 Fuse 10 Amp Auto
181460 Fuse 7.5 Amp Auto
23 141551 Hour Meter
24 183894 Brake Switch
25 185530 Voltage Regulator
26 180130 Battery - 12V
243309 Bolt
644163 Battery Box
644478 Battery Box Lid
754135 Battery Hold Down Bracket
27 180313 Battery Cable
425219 Battery Terminal Boot
28 180276 Ground Cable
29 423690 Spacer - PC Board Support
93047 / 01-06055
Rev. 3-07
VOLTS
P
9
8
23
7
1
2
93047
THROTTLE
FAST SLOW
OIL
BRAKE
BATTERY
TEMP
ENGAGE
OUT TO
PTO CLUTCH
PULL
HOURS
LIGHTS
OFFON
6
5
S
t
a
r
t
e
r
S
w
i
t
c
h
S
t
a
r
t
C
o
n
t
a
c
t
P
r
e
h
e
a
t
4
3
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