Troy-Bilt 675B--Pony - Manual (Page 18)

18 Section 5: Maintenance
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
The carburetor was adjusted at the factory
for best operating speed. Refer to the
separate Engine Owner’s Manual for any
adjustment information or see your autho-
rized engine service dealer.
The governor controls the maximum safe
operating speed and protects the engine
and all moving parts from damage caused
by overspeeding. Do not tamper with the
engine governor settings. Seek authorized
service if a problem exists.
THROTTLE CONTROL
ADJUSTMENT
If the engine does not respond to various
throttle lever settings, refer to the separate
Engine Owner’s Manual for service infor-
mation or contact your local authorized
engine service dealer.
WHEEL GEAR CABLE
ADJUSTMENT
When the Wheel Gear Lever is in DISEN-
GAGE, the wheels will roll freely (free-
wheel). The wheels should not roll freely
when the lever is in ENGAGE. If the
wheels roll freely when the Wheel Gear
Lever is in ENGAGE, the wheel gear cable
needs to be adjusted as described below.
1. With the engine shut off and the spark
plug wire disconnected, put the Wheel
Gear Lever in ENGAGE.
2. Loosen the top adjustment nut
(A, Figure 5-5) on the wheel gear cable
bracket located on the left side rear of the
transmission.
3. Push wheel gear cable (B) down and
roll tiller slightly forward or backward until
eccentric lever (C) engages (locks)
wheels. Hold cable in that position and
tighten top (A) and bottom (D) adjustment
nuts.
4. Move Wheel Gear Lever to ENGAGE and
DISENGAGE several times to check adjust-
ment. The wheels should not roll when
the lever is in ENGAGE, but they should
roll when the lever is in DISENGAGE.
Readjust the cable as required.
OFF SEASON STORAGE
When the tiller won’t be used for extended
periods, prepare it for storage as follows:
1. Clean the tiller and engine.
2. Do routine tiller lubrication (see Tiller
Lubrication) and check for loose parts and
hardware (see Check Hardware).
3. Protect the engine by performing the
engine storage instructions in the separate
Engine Owner’s Manual.
NOTE: Be sure to protect the fuel lines,
carburetor and fuel tank from gum
deposits by removing fuel or by treating
fuel with a fuel stabilizer (follow engine
manufacturer’s recommendations).
4. Store unit in a clean, dry area.
5. Never store the tiller with fuel in the fuel
tank in an enclosed area where gas fumes
could reach an open flame or spark, or
where ignition sources are present (space
heaters, hot water heaters, furnaces, etc.).
TINES
The tines will wear with use and should be
inspected at the beginning of each tilling
season and after every 30 operating
hours. Tines can be replaced individually
or as a complete set. Never inspect or
service the tines unless the engine is
stopped and the spark plug wire is
disconnected.
NOTE: The tiller hood must be removed to
take off either a single tine holder or indi-
vidual tines. The hood is secured to the
transmission housing with two rear bolts
and two front bolts.
Tine Inspection
With use, the tines (Figure 5-6) will
become shorter, narrower and pointed.
Badly worn tines will result in a loss of
tilling depth and reduced effectiveness
when chopping up and turning under
organic matter.
Removing and Installing
Tine Assemblies
1. Use a 9/16" socket, 6" extension, a
ratchet, and a 9/16" box wrench to loosen
the nut (A, Figure 5-7) and bolt (B) that
secure the tine holder to the tine shaft.
2. Use a rubber mallet to tap the tine
holder loose.
3. Slide the tine assembly off the tine
shaft.
4. Repeat Steps 1-through-3 above to
remove the other tine assembly.
5. Installing the tine assembly is simply
the reverse of its removal. Be sure the
cutting edges face so they will enter the
soil first when the tiller is moving
forward– this means the cutting edges
face toward the operator position.
First be sure to remove any rust, uneven
spots or burrs from the tine shaft, using
fine sandpaper. Then grease the tine shaft
before reinstalling the tine assemblies.
Tighten the hardware very securely.
Removing and Installing
Individual Tines
1. Use two 9/16" box end wrenches to
remove the two bolts (C, Figure 5-7), and
nuts (D) that secure the tine to its tine
holder.
Figure 5-5: Wheel gear cable assembly.
B
A
C
D
Figure 5-6: Four tine gangs: two per side.