Ada beberapa perawatan rutin
pada excavator yang pelaksaannya ditentukan oleh lama waktu penggunaan
dilapangan. Untuk melihat sejauh mana item-item pemriksaan dan pengujian pada
excavator jenis kobelco, berikut ini akan saya paparkan manual atau prosedur
penanganan pemeriksaan dan pengujian sesuai buku manual. (Mohon maaf jika masi
bahasa asing).
1. Bucket/Arm & Link
Clearance
Frequently, check clearance
between bucket and bucket link and/or between arm and bucket to make sure it is
within specifications. If clearance is greater than 1.2 mm (0.05”) adjust
clearance.
Proceed as follows to
correct excessive
play:
a.
Move the machine to a firm level surface and place the bucket on the ground,
making certain that the bucket is stable. See Figure 4.54A.
b.
Roll “O”-Rings onto the bucket bosses.
See Figure
4.54B.
c.
Remove jam nuts, nuts, and retaining bolt.
See
Figure 4.54B.
d.
Carefully slide out, partially, main pins mounting arm and bucket link to
bucket. You may have to start the engine and slightly operate the boom and arm
to remove load from pins.
See
Figure 4.54C.
e.
Insert shims as needed to correct any excessive play.
f.
Align the shims with pin holes and insert pins into position. Be careful not to
damage seals.
g.
Install retaining bolt with nut and jam nut.
See
Figure 4.54B.
h.
Roll “O”-Rings onto the grooves between bucket/arm, and bucket/bucket link. See
Figure 4.54D.
2. Reversing Bucket
a.
Move the machine to a firm level surface and place the bucket on the ground,
making certain that the bucket is stable. See Figure 4.55A. b.
Roll “O”-Rings onto the bucket bosses. See Figure 4.55B.
c.
Remove jam nuts, nuts, and retaining bolts from both pins. See Figure 4.55B.
d.
Carefully slide out main pins mounting arm and bucket link to bucket.
e.
Clean pins and pin holes, and apply grease on pin and holes surfaces.
f.
Rotate bucket 180º or move machine. Install arm and bucket link in their
respective positions.
See
Figure 4.55C.
g.
Move the bucket cylinder to match the bucket pin holes with the bucket link
hole. Insert pin. Becareful not to damage seals.
h.
Operate the boom and arm to match the bucket pin holes with the arm hole
connection. Insert pin carefully to avoid damaging the seals.
i.
Install retaining bolts with nuts and jam nuts on both pins. See Figure 4.55B.
j.
Roll “O”-Rings onto the grooves between bucket/arm, and bucket/bucket link.
See
Figure 4.55B
3. Removing the Bucket
a.
Move the machine to a firm level surface and place the bucket on the ground,
making certain that the bucket is stable. See Figure 4.56A.
b.
Roll “O”-Rings onto the bucket bosses. See Figure 4.56B.
c.
Remove jam nuts, nuts, and retaining bolt.See
Figure 4.56B.
d.
Carefully remove main pins mounting arm and bucket link to bucket. You may have
to start the engine and slightly operate the boom and arm to remove load from
pins. See Figure 4.56C. Be careful not to damage dust seals.
