Specifications

300 SERIES MAN HOLE DIGGER
FORM GOM12070702, VERSION 1.2
36
1) Change the transmission oil every 25 hours of
operation, or more often as necessary, if the Hole
Digger is operated in extremely dusty or dirty
conditions.
2) Wipe any dust or dirt from the oil filler/level plug and
oil drain plug areas of the transmission. The oil
filler/level plug is located on the side of the
transmission and is appropriately marked. The oil drain
plug is located under the transmission. Remove both
plugs
with the adjustable wrench and allow the oil to
completely drain from the transmission into a suitable
container. Replace the oil drain plug and tighten
securely with the adjustable wrench. Dispose of the
used oil per accepted procedures.
GASOLINE IS AN EXTREMELY FLAMMABLE FUEL.
USE EXTREME CAUTION WHEN HANDLING
GASOLINE. DO NOT SMOKE OR BRING FIRE OR
FLAME NEAR THE FUEL.
3) Using the funnel, pour 1 US quart (0.94 lit) of
G
eneral Equipment Company Transmission and
Engine Oil, PN 999-11, or a high grade, SAE 30
Detergent or 10W30 motor oil into the transmission
through the oil filler/level plug opening. Use only an oil
marked with an engine service classification SF, SG or
SH/CD. The oil level in the transmission is to be
maintained at the bottom of the oil filler/level plug hole.
Allow any excess oil to drain out of the transmission.
This procedure determines the correct oil level for the
transmission. Correct oil level is important to ensure
proper centrifugal clutch operation. Maintaining the oil
level too high will cause excessive clutch slippage and
result in high oil temperatures. Excessive slippage and
high oil temperatures will significantly reduce the
service life of the clutch assembly and affect the
overall performance of the Hole Digger.
4) Replace the oil filter/level plug. Tighten securely with
the adjustable wrench. Wipe off any excess oil spilled
on the transmission. Dispose of the used oil properly.
5) Inspect the Hole Digger for loose, worn or damaged
parts. Replace any questionable part or assembly with
a genuine, approved factory replacement part only. Do
not attempt any maintenance or repair work not
described in the Operator Manual. Have such work
performed at your dealer's servicing shop.
MAGURA® THROTTLE CONTROL MAINTENANCE
PROGRAM.
Applications: All 300 Series models.
The Magura twist grip throttle controls engine speed
during the actual hole digging process. It has proven to
be a rugged, dependable device that delivers
exceptional service life while requiring only minimal
maintenance.
Every 8 hours of actual operation and
whenever the throttle cable is replaced, the following
maintenance program is to be followed:
1) Remove the plastic cover to properly inspect the
internal components. Any worn or damaged
component should be replaced with a factory approved
replacement part only. FIGURE 25.
2) Normal use will produce a wear pattern by the
braided inner cable into the idler pulley. Maximum
allowable
groove depth wear created by the throttle
cable is 0.045 inch (1 mm). A wear depth in excess of
this limit will require the replacement of the idler pulley.
3) Inspect the braided inner cable on a regular basis for
excessive wear and fraying in the area in direct contact
with the idler pulley. Abnormal wear or fraying will
require the replacement of the throttle cable.
FIGURE 25
4) Inspect the barrel end of the braided inner cable for
proper retention on a regular basis. A properly retained
barrel end will have no relative movement between it
and the inner cable. Any relative movement will require
the replacement of the throttle cable. FIGURE 26.