Komatsu Utility 395F6001, Operation & Maintenance Manual

Page: 205 / 254

MAINTENANCE PLAN
203
4.7.3.d LUBRICATING BOOM
DANGER
• The boom sections must be lubricated when they are com-
pletely extended. As a safety precaution, position a stand
capable of supporting the entire boom under the first tele-
scopic boom before extending the boom sections and low-
er the stabilizers to the ground, if they are provided.
• If the machine isn’t equipped with stabilizers, place a safety
block in central position under the front part of the frame.
1 - Position the machine on firm and level ground and select the
TRAVEL-WORK operating mode; if the machine is equipped
with stabilizers, lower them to the ground, otherwise place a
block in central position under the frame.
2 - Slowly extend the boom sections until they are completely
out and in horizontal position; stop the engine and apply the
parking brake.
3 - Remove any used oil from the boom sections and clean the
block sliding areas and the grease nipples (1) and (2) thor-
oughly.
4 - Using the grease nipples (1) and (2) positioned on the lower
end of the main (3) and intermediate (4) boom sections, in-
ject grease to lubricate the front sliding pads.
5 - Using a brush ( A ) or a roller, spread grease of the recom-
mended type on sliding surfaces (see «4.3 FUEL, COOLANT
AND LUBRICANTS»).
6- Start the engine and extend and retract the boom sections
completely several times, in order to distribute the grease
evenly on the pads.
7- With the boom sections completely retracted, stop the en-
gine.
8 - Lubricate the upper pads of the intermediate and final boom
sections with the grease nipples (5) and (6).
RKAA1950
2
1
3
RKAA2000
1
4
2
RKAA1960
A
RKAA2090
6
6
5
5