Section 5: Maintenance
WARNING
Before inspecting, cleaning or servicing the machine, shut off engine, wait for moving parts to stop, dis- connect spark plug wire and move wire away from spark plug.
Failure to follow these instructions can result in serious personal injury or property damage.
If the engine is running poorly or has low power while tilling, an adjustment to the carburetor may solve the problem. How- ever, first inspect and service the spark plug and the air filter before making a carburetor adjustment. If the engine con- tinues to run poorly (and the fuel mixture is fresh), proceed to the following carbu- retor adjustment instructions.This fac-
Spark Plug
Inspect the spark plug annually or every 100 operating hours according to the in- structions in the separate Engine Owner’s Manual. Check that the gap is set at .030". For replacement use Champion
Cooling System
It is important to frequently check and remove grass clippings, dirt and other debris that accumulates on the engine, cooling fins, air intake screen and on levers and linkages. This helps to ensure adequate air cooling and correct engine speed.
A |
Figure 16: Remove hitch pin (A) to take off tines.
IMPORTANT: The hitch pin (A, Figure 16) is under spring tension – wear gloves to protect your fingers when removing or re- placing the hitch pin.
Prior to Carburetor Adjustment:
WARNING
The temperature of the muffler and adja- cent engine areas may exceed 150oF (65oC). Contact may cause burns. Avoid these areas. Remove the spark plug lead and ground the lead to the engine to prevent accidental starts and fires.
Failure to do this could cause personal injury.
1.Let engine cool for 30 minutes before continuing.
2.From the operator’s position behind the handlebars, lay the machine down on its left side (muffler side).
Carburetor Adjustment:
1. Locate the carburetor idle mixture |
screw (Figure 15). It is directly under the |
air filter and is black. |
Do Not Adjust |
TINE REMOVAL
AND INSTALLATION
WARNING
Avoid contact with the cutting edges on the tines.
To avoid personal injury when removing or installing tines, wear heavy work gloves. The engine must be off, all moving parts stopped, and the spark plug wire disconnected from the spark plug and moved away from the plug.
The tines will wear with use and they should be replaced if tilling seems to take longer than usual or if the soil is not being mixed as thoroughly. Also, in addi- tion to the standard 10" tilling width tine configuration, the tines can be arranged in two other configurations: (1) A narrow, 41/2" tilling width for smaller areas and (2) A special pattern for stony soil conditions.
Arranging Tines for Narrow Tilling
1.Prop the machine forward so it rests on the front of the tubular carrying handle. The work surface should be flat and firm.
2.Remove the hitch pin (A, Figure 16).
3.Remove the outer tine section (do not remove inner tine section) and mark it as to which side it is from (left or right) and whether it’s an outer or inner tine section.
4.Slide one of the long bushings (B, Figure 17), provided with the unit, onto the shaft. Insert the hitch pin through the tine shaft.
5.Repeat this procedure on the opposite side.
2. | Turn the black idle mixture screw 1/16 |
of a turn clockwise. | |
3. | Return the unit to its normal upright |
operating position and reconnect the | |
spark plug wire. | |
If the engine continues to run poorly, con- tact an authorized engine dealer.
Primer Bulb
Primer Line
Idle Speed Screw (Silver)
Idle Mixture Screw (Black)
Fuel Line
Fuel Tank
12 | Figure 15: Idle Mixture Screw can be adjusted. |