Date of Issue: April 2008
3-3
WDP30X
3. PUMP GEARBOX
a. CONNECTING ROD GREASE
Remove the plastic access plug. Disconnect the spark plug cap
and pull the starter grip until the grease nipple is visible in the
access opening.
Wipe the grease nipple to prevent dirt from getting into the
bearing and using a manual grease gun, pump one or two
strokes of general purpose grease into the bearing.
Reinstall the access plug and connect the spark plug cap.
b. OIL LEVEL CHECK
Check the gearbox oil level with the engine stopped and on a
level surface.
S/N WZCA-6000001~6000824: Remove the oil plug and check
that the oil level is to the bottom of the oil plug.
S/N WZCA-6000825 ~ later: Remove the oil filler cap/dipstick
and check that the oil level is at the upper limit mark on the
dipstick.
c. OIL CHANGE
Change the gearbox oil while the gearbox is warm to assure
complete and rapid draining.
Remove the two 8 x 15 mm bolts and washers from the
connecting rod cover.
Place a suitable container under the gearcase and remove the
drain bolt from the lower end of the gearbox.
Replace the drain bolt and washer and fill the gearbox as
described above.
NOTICE
Avoid getting gear oil on the diaphragm. Drain oil into a drain
pan to prevent oil from running down the pump case onto the
diaphragm. If gear oil comes in contact with the diaphragm, it
will be damaged.
Recommended grease
NLGI #2
Recommended oil
SAE 80W-90
GL5 gear oil
Gearbox capacity
0.8
(0.8 US qt)
CONNECTING
ROD COVER
OIL FILLER
CAP/DIPSTICK
8 x 15 mm
BOLT and
WASHER (2)
OIL FILLER
CAP/
DIPSTICK
UPPER
LIMIT
LOWER
LIMIT
WASHER
DRAIN BOLT
PLASTIC
ACCESS COVER
OIL PLUG
WASHER
SERVICE BULLETIN #7
Summary of Contents for WDP30X
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