Kubota AP-SGM1566, Operator'S Manual

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Section 3: Maintenance & Lubrication
Table of Contents
4/11/19 AP-SGM1566, AP-SGM1572, & AP-SGM1578 Grapples 380-051MK
18
Maintenance
Proper servicing and adjustment are key to the long life of
any attachment. With careful inspection and routine
maintenance, you can avoid costly downtime and repair.
Check all bolts and pins after using the grapple for
several hours and on a regular basis thereafter to ensure
they are tight and secured.
Check hitch fit-up, hydraulic hoses, and fittings on a
regular basis to ensure trash or other objects have not
loosened hitch connection or damaged hydraulic hoses
and fittings.
Replace worn, damaged, or missing grapple parts only
with genuine Kubota parts. Replace illegible or missing
safety labels by obtaining new labels from your Kubota
dealer.
DANGER
!
To avoid serious injury or death:
Always secure equipment with solid, non-concrete supports
before working under it. Never go under equipment supported
by concrete blocks or hydraulics. Concrete can break,
hydraulic lines can burst, and/or hydraulic controls can be
actuated even when power to hydraulics is off.
WARNING
!
To avoid serious injury or death:
•
Allow only persons to perform maintenance on this
attachment who have been properly trained in its safe
operation.
•
Check hitch fit-up frequently. An improper fit-up can cause
the attachment to come loose from the loader hitch plate
and fall.
•
Check hydraulic hoses and fittings frequently. Brush and
other debris can damage hoses and fittings causing the load
to release and fall.
•
Perform scheduled maintenance. Check for loose
hardware, missing parts, broken parts, structural cracks,
and excessive wear. Make repairs before putting implement
back into service.
•
Do not alter implement or replace parts on the implement
with other brands. Other brands may not fit properly or
meet OEM (Original Equipment Manufacturer)
specifications. They can weaken the integrity and impair
the safety, function, performance, and life of the implement.
Replace parts only with genuine OEM parts.
Section 3: Maintenance & Lubrication
Skid Steer/Tractor Maintenance
One of the most important things you can do to prevent
hydraulic system problems is to ensure your skid steer/
tractor reservoir remains free of dirt and contamination.
Use a clean cloth to wipe hose ends before attaching
them to your skid steer/tractor. Replace your skid steer/
tractor’s hydraulic filter element at the prescribed
intervals. These simple maintenances will go a long way
to prevent occurrence of control valve and hydraulic
cylinder problems.
Spear Installation
Figure 3-1
Spear Removal & Assembly
Refer to Figure 3-1:
Check spears (#2) frequently for straightness, breakage,
and tightness. Tighten any spear that is loose. Replace
broken spears and spears that cannot be straightened.
1. To remove a spear, unscrew eccentric hex nut (#1)
and remove spear (#2).
2. Only apply multi-purpose grease around and along
the inside length of tapered hole in mounting
tube (#3). Doing this will aid in removal of spear.
3. Insert spear (#2) into spear mounting tube (#3) with a
flat surface of the spear facing up.
4. Secure spear with M20 x 1.5 eccentric hex nut (#1).
Tighten eccentric hex nut to 230 ft-lb.
Do not apply grease to chamfered surface of eccentric
nut (#1) or chamfered end of spear mounting tube (#3).
Apply grease all around full
length of tapered hole.
Spear
Spear Mounting Tube
Chamfer of Eccentric Nut (#1) must face spear
mounting tube (#3) for nut to tighten properly.
35426
IMPORTANT: Do not heat spears to straighten them
or heat them for any other reason. Heating spears will
damage their structural integrity.
IMPORTANT: Do not apply grease to chamfered
surfaces of eccentric hex nut (#1) and chamfered
end of spear mounting tube (#3) where eccentric
hex nut will seat against.
IMPORTANT: Install eccentric hex nut (#1) with
chamfer facing spear mounting tube (#3).