Cooling System; Exhaust System - Shindaiwa EB633RT Owner's/Operator's Manual

IMPORTANT
To maintain proper engine operating temperatures, cooling air must

Cooling System

pass freely through the cylinder fin area. This flow of air carries
combustion heat away from the engine.
Level 2.
IMPORTANT
To maintain proper engine operating temperatures, cooling air must
cylinder.
pass freely through the cylinder fin area. This flow of air carries com-
bustion heat away from the engine.
insulates the engine and prevents the heat from leaving.
Overheating and engine seizure can occur when:
• Air intakes are blocked, preventing cooling air from reaching the
cylinder.
• Dust and grass build up on the outside of the cylinder. This build up
insulates the engine and prevents the heat from leaving.
Removal of cooling passage blockages or cleaning of cooling fins is consid-
Remove accumulated debris from intake grill between backpack frame
ered "Normal Maintenance." Any failure attributed to lack of maintenance
and blower housing.
is not warranted.
Cleaning Grill

eXhausT sysTem

Spark Arrestor Screen
1. Remove accumulated debris from intake grill between backpack frame
Remove spark plug and engine cover (four screws), pull cover away
and blower housing.
from engine.
Level 2.
Cleaning Cylinder Fins
Tools required:
Clean cylinder fins (A) to allow cooling air to pass freely.
1. Remove spark plug lead from spark plug, and remove engine cover.
2. Clean cylinder fins (A) to allow cooling air to pass freely.
Parts Required: Spark arrestor screen, Gaskets
Install engine cover and spark plug.
3. Install engine cover and attach spark plug lead.
Exhaust System
WaRNING
Do not perform maintenance on engine or muffler until engine
Spark Arrestor Screen
and muffler are completely cool, otherwise serious personal
Level 2.
injury may result.
Parts Required: Spark arrestor screen, Gaskets
IMPORTANT
WARNING
Carbon deposits in muffler will cause a drop in engine output and
Do not perform maintenance on engine or muffler until engine and
overheating. Spark arrestor screen must be checked periodically.
muffler are completely cool, otherwise serious personal injury may
result.
1. Remove spark plug and engine cover (four screws).
2. Remove spark arrestor covers (A), gaskets (B), and spark arrestor screen
IMPORTANT
(C) from muffler. Replace screen if plugged with carbon deposits.
Carbon deposits in muffler will cause a drop in engine output and
overheating. Spark arrestor screen must be checked periodically.
NOTE
When cleaning carbon deposit, be careful not to damage the cata-
1. Remove spark plug lead from spark plug, and remove engine cover.
lytic element inside muffler.
2. Remove spark arrestor covers (A), gaskets (B), and spark arrestor screen
(C) from muffler. Replace screen if plugged with carbon deposits.
4. Install spark arrestor screen and cover.
NOTE
5. Install spark plug and engine cover.
When cleaning carbon deposits, be careful not to damage the catalytic
element inside muffler.
3. Install spark arrestor screen, gaskets, and cover.
Cylinder Exhaust Port
4. Install engine cover and attach spark plug lead.
Level 3.
20
IMPORTANT
The cylinder exhaust port must be inspected and cleaned of excess
Cross Head Screwdriver
A
C
a
b
17