Sakai PF120, Shop Manual

Page: 49 / 62

5-001
VIBRATOR
1. PRECAUTIONS FOR DISASSEMBLY AND REASSEMBLY
When removing, installing, disassembling or reassembling the unit, observe the general precautions described
below.
1) Precautions for removal work
Coolant that contains antifreeze should be treated as a chemical, and must not be drained carelessly on the
ground.
To prevent dust from getting into disconnected hoses and tubes, cover them with a plug or similar means.
When draining oil, use a receptacle with suf
fi cient capacity to receive it.
Before proceeding with the work, look for matchmarks that show the installation location. For reassembly,
place matchmarks in the required locations to prevent errors. Then remove.
When disconnecting wiring connectors, hold the connector components so that unreasonable force is not
applied to the wires.
Label wires and hoses to ensure correct installation location.
When lifting parts, use lifting equipment of suf
fi cient capacity.
When separating parts by using pull bolts, tighten the bolts alternately.
Before removing a unit, clean its surrounding area. Then after removal, cover it to prevent dust and other
substances form getting in.
Before removing piping for hydraulic oil or coolant, or removing related parts, satisfactorily release internal
pressure.
2) Precautions for installation work
Tighten bolts and nuts (sleeve nuts) to the speci fi ed torque (screw tightening torque table).
When installing hoses, do not twist them or allow them to interfere with other parts.
Replace gaskets, O-rings, split cotter pin, and lock plates with new parts.
Properly bend split cotter pins and lock plates.
When applying an adhesive,
fi rst clean and remove oil/grease from the surfaces properly. Then apply two or
three drops to the threaded areas.
When applying a liquid gasket,
fi rst clean and remove oil/grease from the application surface properly, and
con fi rm that the surface is free of dust and damage. Then apply the product evenly.
Clean parts well. Repair scratches, dents, burrs, rust, etc.
Apply gear oil to rotating and sliding components.
Apply grease to the surfaces of press-
fi t parts.
After installing snap rings, con fi rm that they are properly seated in the grooves.
Connect wiring connectors securely after cleaning off adhering oil, dust and water.
Use lifting bolts that are not fatigued or deformed. Screw them in fully.
When tightening a split
fl ange, tighten screws alternately to prevent uneven tightening.
Before installing hydraulic parts, con fi rm that they are free of damage and dust, etc.
3) Precautions when work is completed
If coolant has been drained, securely retighten the drain cock and fi ll with coolant (mixing in long-life coolant)
to the speci fi ed level. Start the engine and allow the coolant to circulate through the piping. Then add coolant
again to the speci fi ed level.
If hydraulic equipment has been removed and reinstalled, fi ll with hydraulic oil to the speci fi ed level. Start the
engine and allow the oil to circulate through the piping. Then add oil again to the speci fi ed level.
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