Specifications

300 SERIES MAN HOLE DIGGER
FORM GOM12070702, VERSION 1.2
17
FIGURE 7
9) Using the vice grip type pliers, remove any excess
inner wire slack and tighten the swivel assembly screw
using the flat bladed screwdriver and 5/16 inch wrench.
The pulling movement with the vice grip type pliers
must not rotate the Magura® throttle control. The
throttle arm return spring is designed to rapidly return
the engine to idle speed/ignition cut off when the
throttle control is released. If this is not occurring, check
the throttle control assembly for possible causes of
binding and movement restrictions. Adjust the swivel
assembly as necessary to allow for complete freedom
of movement. FIGURE 8.
FIGURE 8
FOR OPERATIONAL SAFETY AND
PRODUCTIVITY CONSIDERATIONS, IT IS
EXTREMELY IMPORTANT THAT INNER WIRE
SLACK BE COMPLETELY REMOVED FROM
THE THROTTLE CONTROL SYSTEM. INNER
WIRE SLACK CAN REDUCE OVERALL
OPERATOR CONTROL, RESULTING IN
PROPERTY DAMAGE AND/OR PERSONAL
INJURY.
10) Rotate the throttle control counterclockwise (the
maximum
speed position) to determine that the inner
wire pulls the throttle lever of the carburetor forward,
against its stop. Improper adjustment will not allow the
engine to operate at its maximum, no load, governed
speed and affect the overall digging performance of the
Hole Digger. Adjust the swivel assembly and throttle
cable attach bracket as necessary to allow for complete
freedom of movement.
Check for possible throttle cable inner wire binding and
movement restrictions caused by the clip and clamp.
Rework and adjust as necessary to allow for complete
freedom of movement.
11) Using the cut off pliers, cut the remaining inner wire
behind the swivel assembly, leaving approximately one
inch (25.4 mm) of excess wire.
12) Check all fasteners for security. Consult a fastener
torque chart for proper torque value if any fastener is
found to require retorquing.
N O TE S TO T H E T H R OT T L E C A B L E
IN STALL ATI ON .
Application: 330H, 343H and 357H Hole Diggers
powered by the Honda GXV160 engine.
1) The Honda GXV160 engine incorporates a
multipurposed carburetor/throttle arm design that
allows it to be utilized with both Bowden (push) and
braided wire (pull) type configurations. For simplicity,
productivity and service reasons, the Hole Digger
incorporates a braided wire (pull) type configuration. A
Magura® twist grip throttle control is utilized as the
engine speed control device. The Magura® throttle
control has proven to be a rugged, dependable device
that delivers exceptional service while requiring only
minimal service.
2) The GXV160 engine utilizes one or two spring
loaded screws as stops for the carburetor throttle arm.