Specifications

300 SERIES MAN HOLE DIGGER
FORM GOM12070702, VERSION 1.2
37
FIGURE 26
5) Inspect the receptacle area of the throttle control
which retains the barrel end of the braided inner cable
on a regular basis. A properly fitted barrel fitting should
have complete freedom of movement with no binding
restrictions or excessive play due to wear. A barrel
fitting which is binding within the receptacle should be
discarded in favor of a replacement throttle cable.
Excessive receptacle wear will require replacement of
the specific component assembly. FIGURE 27.
FIGURE 27
6) The rubber boot assembly is designed to protect the
internal components of the throttle control from
excessive foreign material accumulations. The service
life of the boot assembly can be extended with the
application of an appropriate preservative on a regular
basis.
Do no t op er ate th e H ole Di gg er wi t hou t a
ru bb er b o ot as sem bl y in pr ope r con di tio n
m o un t e d i n p o s i t i o n o n t h e M a g u r a
t hr o t t le c o nt r o l . Wi th o ut t h e us e of a
p r op e r r u b b e r b o o t a s s e m b l y, f o r e ig n
m a te r i a ls c a n a c cu m u l at e w i t h in t h e
t h ro t t l e c o n t ro l a s s e m b l y. S u c h a n
oc cu rr e nce c an re s tri ct the m ove men t of
t h e i n t e r n a l c o m p o n e n t s , r e d u c i n g
op er at o r c on tro l o f th e H o le Di g ge r an d
r e su l t in p r o p e r t y d a m a g e an d / o r
pe rs on a l in ju ry.
7)
Inspect the handle grip on a regular basis to
determine it is properly secured to the throttle control.
A grip which fits loose on the throttle control or has
become
worn or torn from use should be replaced with
a factory approved replacement part only.
AUGER MAINTENANCE PROGRAM.
Application: All 300 Series models.
All General 300 Series Hole Diggers utilize earth
augers incorporating the Pengo® type boring head
configuration. This design has been field proven for
several decades to provide unequaled digging
performance in a wide range of unconsolidated and
semiconsolidated soil formations. As with any ground
engaging tool, the service life of the wear components
will have limits directly affected by soil classification,
soil moisture content and general operating
procedures. A consistent auger maintenance program
will provide maximum digging performance and
investment return.
REPLACING A WORN AUGER SCREW BIT.
Application: All augers.
Tools Required:
2 each, 1/2 inch wrenches.
Parts Required:
1 each, PN SB25 Screw Bit (for use with all augers with
the exception of the 3 and 4 inch nominal
diameter augers).
1 each, PN SB35 Screw Bit (for use with 3 inch
nominal diameter earth auger).
1 each, PN SB45 Screw Bit (for use with 4 inch
nominal diameter earth auger).