Section 4 - REPAIR & ADJUSTMENTS
WARNING
DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade. STOP engine. Remove spark plug wire from spark plug and secure wire away from spark plug. Engine and components can be extremely hot. Avoid burns by allowing engine and components sufficient time to cool.
4.4.3.Transmission
2. Note the routing of the old belt around the three pulleys before removing it. See Figure 4.11.
HEX SHAFT PULLEY | TRANSMISSION |
| |
|
DIFFERENTIAL
BRACKET
FIGURE 4.11
3.Remove
4.Slip belt off of belt idler.
5.Remove belt from hex shaft pulley.
6.Place new
7.Work belt onto top of idler pulley.
8.Twist belt sideways and pull it upward between the differential bracket and drive pulley and then down into the pulley groove. Make sure the
4.5Engine To Deck Belt Service
4.5.1.Engine To Deck Belt Tension Adjustment The engine to deck belt transmits power from the engine to blade. This belt during normal service will require periodic tension adjustment.
1.Remove spindle cover.
2.Locate blade control spring. See Figure 4.12.
3.With engine off, engage blade control. The length of the spring should increase by 1/4" to 3/8" for proper belt tension.
4.To obtain proper tension, turn the thumb screw located on the upper left handle until the spring extension is 1/4" to 3/8".
5.Install spindle cover.
4.5.2.Engine to Deck Belt Replacement
1.Remove the engine to drive disc belt as described in Section on Wheel Drive Belt Service.
2.Remove spindle cover.
3.Remove belt from spindle pulley.
4.Loosen idler pulley and remove belt from between guide and idler pulley.
5.Remove drive disc belt from engine pulley.
6.Remove deck belt from engine pulley.
7.Reverse to install new belt.
NOTE: Check to make sure belt is routed inside the belt guides. Verify proper belt tension by engaging blade control. Adjust thumb screw until spring is extended 1/4” to 3/8”.
BLADE CONTROL
ADJUSTING WHEEL
BLADE CONTROL
SPRING
1/4” TO 3/8” EXTENDED
FIGURE 4.12
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