Komatsu PC500LC-10R Shop Manual page 34

Hydraulic excavator
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PRECAUTIONS FOR DISCONNECTION AND CONNECTION OF PIP-
INGS
Introduction of parts for the removal of taper pipe thread type joint
Nominal
Nominal No.
thread size
1
01
R
1
02
R
3
03
R
1
04
R
3
06
R
10
R1
12
R1
14
R1
20
R2
Precautions for installation and assembling work
Tighten the bolts and nuts (sleeve nuts) to the specified torque (KES) unless otherwise specified.
Install the hoses without twist and interference. If there is any in-between clamp, securely fasten it.
Replace all of the gaskets, O-rings, cotter pins, and lock plates with new ones.
Bend the cotter pins and lock plates securely.
When applying adhesive, clean and degrease the surface to apply, and apply 2 to 3 drops of adhesive to
the threaded portion.
When applying liquid gasket, clean and degrease the surface, and apply it uniformly after making sure that
the surface is free from dust or damage.
Clean all of the parts. If there is any damage, dents, burrs, or rust found on them, repair it.
Apply engine oil to the rotating parts and sliding surface.
Apply molybdenum disulfide lubricant (LM-P) to the surfaces of the press-fitting parts.
After installing the snap ring, check that the snap ring is settled in the ring groove completely.
When connecting wiring harness connectors, clean the connectors to remove oil, dust, or water, then con-
nect them securely.
Use the eye bolts without fatigue and deformation and screw them in securely. Match the directions of the
eyes and the hook.
When installing split flanges, tighten the bolts uniformly and alternately to prevent uneven tightening.
As a rule, apply liquid gasket (LG-5) or liquid sealant (LS-2) to the threaded portion of each taper male
screws which receive pressure.
00-32
Square head type (A)
/
07042-00108
8
/
07042-00211
4
/
8
/
07042-00415
2
/
07042-00617
4
07042-01019
1
/
07042-01222
4
1
/
07042-01422
2
07042-02026
00 INDEX AND FOREWORD
Plug (1)
Hexagonal socket head (B)
07043-00108
07043-00312
07043-00415
07043-00617
07043-01019
07043-01222
07043-01422
07043-02026
PC500LC-10R

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