Troy-Bilt 675B--Pony - Manual (Page 17)

Section 5: Maintenance 17
Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to come to
a complete stop, disconnect spark plug wire and move wire away from spark plug.
Failure to follow these instructions can result in serious personal injury or property damage.
WARNING
2. To check the gear oil level (and to add
oil, if necessary), refer to STEP 5: Check
Gear Oil Level in Transmission in Section
2 of this manual.
B. To Drain and Refill the Transmission:
The transmission gear oil does not need to
be changed unless it has been contami-
nated with dirt, sand or metal particles.
1. Prop up the left side of the unit
securely. Remove the left-side wheel by
removing the wheel mounting hardware.
2. Unscrew the plastic gear oil fill plug
from the top of the transmission
(L, Figure 2-11).
3. Place a clean pan below the transmis-
sion drain plug (Figure 5-4) and remove
the drain plug. The oil will start flowing
out of the drain hole (it may flow slowly,
especially in cold temperatures).
4. Remove the transmission gear oil level
check plug that is located a few inches
above the left-side wheel shaft (N, Figure
2-11).
5. When the oil stops flowing, tilt the
transmission forward to drain oil from the
rear of the transmission.
6. After draining the oil, clean the threads
of the drain plug, apply a non-hardening,
removable gasket sealant to the threads,
and securely reinstall the drain plug.
7. Use a clean funnel to slowly add SAE
140 or SAE 85W-140 weight gear oil (with
an API rating of GL-4 only) to the trans-
mission. The transmission holds approxi-
mately 3-1/4 pints (52-54 ounces). Tilt
the tiller slightly backwards to make sure
the gear oil reaches the rear (tine) end of
the transmission. Stop adding gear oil
when it begins to flow from the oil level
check hole on the side of the
transmission.
8. Securely reinstall the oil level check
plug.
9. Securely reinstall the gear oil fill plug
on top of the transmission.
10. Reinstall the wheel and remove the
prop.
ENGINE OIL SERVICE
Check the motor oil level before starting
the engine each day and after each 5
hours of continuous operation. Running
the engine when the oil level is low will
quickly ruin the engine.
It is recommended that you change the
motor oil after every 10 hours of operation
and even sooner when operating in
extremely dirty or dusty conditions.
A. To Check the Motor Oil Level:
1. Move the tiller to a level area and stop
the engine.
2. Level the engine by moving the Depth
Regulator Lever into the second notch
from the top.
3. Clean the area around the oil dipstick or
oil fill tube (whichever applies) to prevent
dirt from falling into the crankcase.
4. On engines with an oil fill tube, remove
the filler cap and add oil (if required) until
it reaches the top of the tube. Reinstall
the filler cap.
5. On engines with a dipstick, remove it,
wipe it clean, and reinstall it finger-tight.
Remove the dipstick again and check the
reading. Add oil (if required) to bring the
level to the FULL mark. Do not overfill.
B. To Change the Motor Oil:
Change the motor oil as instructed in the
separate Engine Owner’s Manual.
AIR CLEANER SERVICE
The engine air cleaner filters dirt and dust
out of the air before it enters the carbure-
tor. Operating the engine with a dirty,
clogged air filter can cause poor perfor-
mance and damage to the engine. Never
operate the engine without the air cleaner
installed. Inspect and service the air
cleaner more often if operating in very
dusty or dirty conditions.
Service the air cleaner as instructed in the
separate Engine Owner’s Manual.
SPARK PLUG SERVICE
Inspect and clean or replace the spark
plug after every 100 operating hours or
annually. Clean the plug and set the gap
as described in the separate Engine
Owner’s Manual.
In some areas, local law requires using
resistor spark plugs to suppress ignition
signals. If the engine was originally
equipped with a resistor spark plug, use
the same type for replacement.
SPARK ARRESTER SCREEN SERVICE
If the engine muffler is equipped with a
spark arrester screen, remove and clean it
according to the time intervals and
instructions in the separate Engine
Owner’s Manual.
ENGINE CLEANING
The engine must be kept clean to assure
smooth operation and to prevent damage
from overheating. Refer to the separate
Engine Owner’s Manual for specific repair
and cleaning instructions. All inspections
and services must be done with the engine
shut off and cool to the touch.
CARBURETOR/GOVERNOR
CONTROL ADJUSTMENTS
Figure 5-4: Remove drain plug to drain
transmission gear oil (also remove oil fill
plug and oil level check plug).
Operators shall not tamper with the
engine governor settings; the governor
controls the maximum safe operating
speed to protect the engine and all
moving parts from damage caused by
overspeed. Authorized service shall be
sought if a problem exists.
WARNING