PAGE 26 — MVH508GH PLATE COMPACTOR • OPERATION MANUAL — REV. #0 (01/14/21)
MAINTENANCE
SPARK PLUG
1. Remove and clean spark plug (Figure 33) with a wire
brush if it is to be reused. Discard spark plug if the
insulator is cracked or chipped.
2. Using a feeler gauge adjust spark plug gap to 0.028
~0.031 inch (0.7~0.8 mm).
3. Thread spark plug into cylinder hole by hand to prevent
cross-threading, then tighten securely.
Figure 33. Spark Plug Gap
V-BELT
Visually examine the V-belt (Figure 34) and determine if it
is full of tiny cracks, frayed, has pieces of rubber missing,
is peeling or otherwise damaged.
Also, examine the belt and determine if it is
oil soaked
or
"
glazed
" (hard shiny appearance on the sides of the belt).
Either of these two conditions can cause the belt to run hot,
which can weaken it and increase the danger of it breaking.
If the V-belt exhibits any of the above wear conditions
replace the V-belt immediately.
Figure 34. V-Belt Inspection
NOTICE
NEVER
use a spark plug of incorrect heat range.
GAP
.028 - .031 IN.
(0.7- 0.8 MM.)
GLAZED
OIL SOAKED
BROKEN
CORD FAILURE
CRACKS
MISSING RUBBER
SIDEWALL
WEAR
WORN BACK
COVER
SPARK ARRESTER CLEANING
Clean the spark arrester every year or 100 hours.
1. Remove the 4 mm screw (3) from the exhaust deflector,
then remove the deflector. See (Figure 35).
2. Remove the 5 mm screw (4) from the muffler protector,
then remove the muffler protector.
3. Remove the 4 mm screw from the spark arrestor, then
remove the spark arrester.
Figure 35. Spark Arrester Removal
4. Carefully remove carbon deposits from the spark
arrester screen (Figure 36) with a wire brush.
Figure 36. Cleaning The Spark Arrester
5. If the spark arrester is damaged and has breaks or
holes, replace with a new one.
6. Reinstall the spark arrester and muffler protector in
reverse order of disassembly.
4 MM
SCREW
5 MM
SCREW
MUFFLER
PROTECTOR
5 MM
SCREW
SPARK
ARRESTER
4 MM
SCREW
SPARK ARRESTER
SCREEN
WIRE BRUSH
