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Section 1: Assembly & Set-up
6/28/11
Model SAC35 Hydraulic Post Hole Digger 317-188M
Section 1: Assembly & Set-up
Skid Steer & Tractor Requirements
The Post Hole Digger is designed to attach to Skid Steer
Loaders and to tractors with a Skid Steer adapter hitch
on its loader with the following requirements:
SAE Lift Capacity . . . . . . . . . . . . . . . . . 1200 lbs. min.
Hydraulic Pressure Rating . . . . . . . . 1500 - 3500 PSI.
Hydraulic Flow Rate . . . . . . . . . . . . . . . 10 - 25 GPM.
Hydraulic Connections . . . . 2 - Hydraulic outlets min.
Torque Requirements
Refer to “Torque Values Chart” on page 22 to determine
correct torque values for bolts when tightening hardware.
Gearbox housing Assembly
Figure 1-1
Hydraulic Gearbox Assembly
Refer to Figure 1-1:
1.
Inspect drive chain tension and chain take-up bolt
torques. See “Drive Chain Inspection & Take-Up” on
page 14 for chain tension and torque instructions.
2.
Position hydraulic gearbox housing (#1) with ports
facing forward as shown.
3.
Attach gearbox housing to hitch clevis (#2) with
1 1/4" x 6 7/8" clevis pin (#3) as shown.
4.
Secure clevis pin with 3/16" x 2" cotter pin (#4).
Ports
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IMPORTANT: Verify drive chain is properly
tensioned and chain take-up bolts are properly
torqued before operating the Post Hole Digger or the
unit can be damaged.
Hose Assembly
Figure 1-2
Hydraulic Hose Assembly
Refer to Figure 1-2:
!
WARNING
Skid Steer and/or Tractor hydraulics not to exceed 3,000 PSI.
Units hydraulic system is rated for maximum 3,000 PSI
working pressure. To prevent serious injury, death or damage
to units, do not exceed 3,000 PSI working pressure.
1.
Screw 99" long hydraulic hoses (#2A & #2B) into
motor fittings (#1) and tighten.
2.
Attach straight adapter or 90
o
elbow fittings (#3) to
the other end of hydraulic hoses (#2A & #2B).
Tighten fittings to the hoses.
3.
See your Skid Steer or Tractor Operator’s Manual to
determine which hydraulic line on your unit is under
pressure when unit is locked in continuous operation.
Select coupling (#4 or #5) that mates with your unit’s
coupling under pressure and attach that coupling to
line (#2A). Attach the other coupling to line (#2B).
Tighten both couplings.
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NOTE: Provided are four fittings (#3). Two 90
o
elbows and two straight adapters. Customer may
attach the fittings that best suits his fit-up.
NOTE: The preferred hose connections will allow
continues hydraulic flow for digging. Line (#2A) is
the pressure line for digging. Therefore, attach
line (#2A) to the Skid Steer or Tractor hydraulic line
that is pressurized when controls are locked for
continuous operation (continuous hydraulic flow).
