PDF Shop Manual Komatsu PC110R-1 Hydraulic Excavator - 2 MB
This is the complete shop manual for the Komatsu PC110R-1 Hydraulic Excavator.
It provides in-depth service and repair information, covering everything from the engine to the hydraulic systems.
Technicians will find detailed specifications, troubleshooting guides, and step-by-step procedures for disassembly and reassembly.
This manual is the ultimate resource for performing professional-grade repairs and maintenance on your excavator.
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--- Page 3 ---
HOISTING INSTRUCTIONS
HOISTING INSTRUCTIONS
Hooks have maximum strength at the middle por-
tion.
Heavy parts (25 kg or more) must be lifted
with a hoist etc. In the Disassembly and Assem-
bly section, every part weighing 25 kg or more is
clearly indicated with the symbol
1. If a part cannot be smoothly removed from the ma-
chine by hoisting, the following checks should be
made:
• Check for removal of all bolts fastening the part 3) Do not sling a heavy load with one rope alone, but
to the relative parts. sling with two or more ropes symmetrically wound
• Check for any part causing interference with on to the load.
the part to be removed. Slinging with one rope may cause turning of the load
during hoisting, untwisting of the rope, or slipping of
the rope from its original winding position on the
2. Wire ropes load, which can cause dangerous accidents.
1) Use adequate ropes depending on the weight of 4) Do not sling a heavy load with ropes forming a wide
parts to be hoisted, referring to the table below: hanging angle from the hook.
When hoisting a load with two or more ropes, the
WIRE ROPES force subjected to each rope will increase with the
(Standard «S» or «Z» twist ropes hanging angles.
without galvanizing) The table below shows the variation of allowable
load (kg) when hoisting is made with two ropes,
Rope diameter (mm) Allowable load (tons) each of which is allowed to sling up to 1000 kg ver-
tically, at various handing angles.
10.0 1.0
When two ropes sling a load vertically, up to 2000 kg
11.2 1.4 of total weight can be suspended.
This weight becomes 1000 kg when two ropes
12.5 1.6
make a 120° hanging angle.
14.0 2.2 On the other hand, two ropes are subjected to an ex-
cessive force as large as 4000 kg if they sling a 2000
16.0 2.8
kg load at a lifting angle of 150°.
18.0 3.6
20.0 4.4
22.4 5.6
30.0 10.0
40.0 18.0
50.0 28.0
60.0 40.0
The allowable load value is estimated to be one-
sixth or one-seventh of the breaking strength of the
rope used.
2) Sling wire ropes from the middle portion of the hook.
Slinging near the edge of the hook may cause the
rope to slip off the hook during hoisting, and a se-
rious accident can result.
PC110R-1 00-7
--- Page 4 ---
CONVERSION TABLE
From liter to U.S. Gall.
1 = 0.2642 U.S. Gall.
0 1 2 3 4 5 6 7 8 9
0 0 0.264 0.528 0.793 1.057 1.321 1.585 1.849 2.113 2.378
10 2.642 2.906 3.170 3.434 3.698 3.963 4.227 4.491 4.755 5.019
20 5.283 5.548 5.812 6.076 6.340 6.604 6.869 7.133 7.397 7.661
30 7.925 8.189 8.454 8.718 8.982 9.246 9.510 9.774 10.039 10.303
40 10.567 10.831 11.095 11.359 11.624 11.888 12.152 12.416 12.680 12.944
50 13.209 13.473 13.737 14.001 14.265 14.529 14.795 15.058 15.322 15.586
60 15.850 16.115 16.379 16.643 16.907 17.171 17.435 17.700 17.964 18.228
70 18.492 18.756 19.020 19.285 19.549 19.813 20.077 20.341 20.605 20.870
80 21.134 21.398 21.662 21.926 22.190 22.455 22.719 22.983 23.247 23.511
90 23.775 24.040 24.304 24.568 24.832 25.096 25.361 25.625 25.889 26.153
From liter to U.K. Gall.
1 = 0.21997 U.K. Gall.
0 1 2 3 4 5 6 7 8 9
0 0 0.220 0.440 0.660 0.880 1.100 1.320 1.540 1.760 1.980
10 2.200 2.420 2.640 2.860 3.080 3.300 3.520 3.740 3.950 4.179
20 4.399 4.619 4.839 5.059 5.279 5.499 5.719 5.939 6.159 6.379
30 6.599 6.819 7.039 7.259 7.479 7.969 7.919 8.139 8.359 8.579
40 8.799 9.019 9.239 9.459 9.679 9.899 10.119 10.339 10.559 10.778
50 10.998 11.281 11.438 11.658 11.878 12.098 12.318 12.528 12.758 12.978
60 13.198 13.418 13.638 13.858 14.078 14.298 14.518 14.738 14.958 15.178
70 15.398 15.618 15.838 16.058 16.278 16.498 16.718 16.938 17.158 17.378
80 17.598 17.818 18.037 12.257 18.477 18.697 18.917 19.137 19.357 19.577
90 19.797 20.017 20.237 20.457 20.677 20.897 21.117 21.337 21.557 21.777
PC110R-1 00-17
--- Page 5 ---
STRUCTURE AND FUNCTION TRACK FRAME
TRACK FRAME
1 2 3
7 6 5 4
9 10 8
RKP04670
1. Idler 6. Track shoe
2. Track frame 7. Guard
3. Carrier roller 8. Final drive
4. Sprocket 9. Idler cushion
5. Track roller 10. Recoil spring
PC110R-1 10-5
--- Page 6 ---
STRUCTURE AND FUNCTION HYDRAULIC DIAGRAM WITH 2-PIECE BOOM
HYDRAULIC DIAGRAM WITH 2-PIECE BOOM
Filter: 50
1
4
2
9
7
8
6
Bucket cylinder
5
(Ø120xØ70-770)
Reverse Forward Reverse Forward
(Ø90xØ60-800)
(Ø100xØ60-900)
Boom cylinder
3 B P2 P1
P1 P2 T1 T1
Boom swing cylinder
Arm cylinder
2nd boom cylinder
R.H. side equipment
L.H. side equipment
(Ø90xØ50-580)
(Ø100xØ60-650)
V1 V2 T ∅0.5
Swing motor
186 / 226 bar
C1 C2
320 bar
320 bar
Ps Ps
(Ø120xØ60-215)
320 bar
320 bar
Blade cylinder
L.H.swing
R.H.swing
Lower
Dump
Raise
MA S MB
Curl
Out
In
R.H. travel motor L.H. travel motor
Filter: 10 M2
M1
Forward
Forward
Reverse
Reverse
Lower
Preload: 12 bar
Raise
Volume: 0.35ᐉ PC PR
A9 B9 PB9 A10 B10 PB10 A8 B8 PB8 A7 B7 PB7 A6 B6 PB6 A5 B5 PB5 A4 B4 PB4 A3 B3 PB3 A2 B2 PB2 P2 A1 B1 PB1 TSW TB TC Ø0.9
M3 39 bar 49 bar
216 bar
Ø3 min
P2
PLS
4.9 bar
Ø 0.5
Ø 0.5 T
R.H. swing
196 bar
196 bar
Forward
Reverse