Section 1: Assembly & Set-up
SA20 Hydraulic Post Hole Diggers 317-215M
March 8, 2018
10
Gearbox Rest Assembly
Figure 1-5
Optional Hitch Assembly
The motor/gearbox assembly can be mounted centered
on auger hitch (#1) or mounted offset 18" to the right. Two
choices are offered to allow accessing hard-to-reach
places and to provide best line-of-sight.
Gearbox Rest Assembly
Refer to Figure 1-5:
The auger hitch (#1) is shipped from the factory with
gearbox support rest (#2) mounted backwards (not
shown) in center mount “A”. Determine which mount
(Center Mount “A” or Offset Mount “B”) will be used and
reattach support rest facing forward in that mount.
1.
Remove nuts (#4), bolts (#3), and gearbox support
rest (#2).
2.
Turn gearbox support rest (#2) around and reattach it
in mount “A” or “B” with removed 3/8"-16 x 4 1/4" GR5
bolts (#3) and hex flange lock nuts (#4) as shown.
3.
Tighten hex flange lock nuts (#4) to the correct
torque.
Motor/Gearbox Assembly
Refer to Figure 1-6:
1.
Attach knuckle (#4) to upper center mount bracket “A”
or to upper offset mount bracket “B” with clevis
pin (#6) and cotter pin (#5).
2.
Bend both legs of cotter pin to keep cotter pin from
falling out.
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IMPORTANT:
Make sure gearbox is mounted with
hose guide (#2) on the left-hand side as shown and
gearbox support rest (#3) is located directly below
the gearbox.
Center/Offset Assembly of Motor/ Gearbox
Figure 1-6
Hydraulic Hose Assembly
Determine which hitch plate set-up option is included and
follow appropriate instructions below:
•
Hose assembly for tractor hook-up. Refer to
•
Hose assembly for skid steer hook-up. Refer to
“8 Foot Hose Assembly for Skid Steers”
24 Foot Hose Assembly for Tractors
Refer to Figure 1-7 on page 11:
1.
Screw MJIC end of adapters (#7) to hydraulic
hoses (#10) until tight.
2.
Screw quick release couplers (#11) to MORB end
(o-ring end) of adapter fittings (#7) until tight.
3.
Thread opposite end of hydraulic hoses (#10)
through right-hand hose guide (#2) as shown.
4.
Thread hoses (#10) through hose guide (#4) as
shown.
5.
Remove bolts (#6) and hose cover (#1).
6.
Remove plug from motor port “A” and screw o-ring
end of straight adapter (#9) to motor port “A” until
tight.
7.
Screw 90
o
elbow (#8) to adapter (#9). Draw elbow up
snug with open end up. Do not tighten at this time.
8.
Remove plug from motor port “B” and screw o-ring
end of straight adapter (#9) to motor port “B” until
tight.
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NOTE:
Pioneer couplers (#11) and straight
adapters (#7) are optional. See
page 23 for additional information.