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Komatsu PC170LC-10 Shop Manual
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Komatsu PC170LC-10 Shop Manual

Komatsu PC170LC-10 Shop Manual

Hydraulic excavator
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SEN06367-03
HYDRAULIC
PC170LC
-10
EXCAVATOR
30001
SERIAL NUMBERS
and up

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Summary of Contents for Komatsu PC170LC-10

  • Page 1 SEN06367-03 HYDRAULIC PC170LC EXCAVATOR 30001 SERIAL NUMBERS and up...
  • Page 2 Find manuals at https://best-manuals.com...
  • Page 3 SHOP MANUAL HYDRAULIC EXCAVATOR PC170LC-10 Model Serial Number PC170LC-10 30001 and up 00 Index and foreword 1 00 Index and foreword PC170LC-10 00-1 Find manuals at https://best-manuals.com...
  • Page 4 Main pump ........................10-45 Control valve ........................10-71 Swing motor ........................10-119 Travel motor ........................10-121 PPC valve ........................10-136 Solenoid valve ......................... 10-158 Attachment circuit selector valve (for high pressure circuit) ..........10-162 00-2 PC170LC-10 Find manuals at https://best-manuals.com...
  • Page 5 Adjusting play of work equipment and swing PPC valves............30-57 Testing pump swash plate sensor ..................30-58 Isolating the parts causing hydraulic drift in work equipment........... 30-59 Testing and adjusting travel deviation................... 30-61 Testing oil leakage ......................30-63 00-3 PC170LC-10 Find manuals at https://best-manuals.com...
  • Page 6 Failure code [CA131] Throttle Sensor High Error..............40-139 Failure code [CA132] Throttle Sensor Low Error ..............40-141 Failure code [CA144] Coolant Temp Sens High Error ............40-143 Failure code [CA145] Coolant Temp Sens Low Error ............40-145 00-4 PC170LC-10 Find manuals at https://best-manuals.com...
  • Page 7 Failure code [CA2249] Rail Press Very Low Error ............... 40-236 Failure code [CA2272] EGR Valve Pos Sens Low Error ............40-237 Failure code [CA2311] IMV Solenoid Error ................. 40-239 Failure code [CA2349] EGR Valve Solenoid Open Error ............40-240 00-5 PC170LC-10 Find manuals at https://best-manuals.com...
  • Page 8 Failure code [DHSAMA] Swing RH PPC Press Sensor Abnormality ........40-339 Failure code [DHSBMA] Swing LH PPC Press Sensor Abnormality ........40-341 Failure code [DHSCMA] Arm Dump PPC Press Sensor Abnormality ........40-343 Failure code [DHSDMA] Bucket Dump PPC Press Sensor Abnormality ........ 40-345 00-6 PC170LC-10 Find manuals at https://best-manuals.com...
  • Page 9 E-23 Contents of display on machine monitor is different from actual machine condition ......................40-426 E-24 Some areas of machine monitor screen are not displayed..........40-427 E-25 Function switch does not work................... 40-428 E-26 Automatic warm-up system does not operate (in cold season)........40-429 00-7 PC170LC-10 Find manuals at https://best-manuals.com...
  • Page 10 H-10 Hydraulic drift of boom is large .................. 40-498 H-11 Hydraulic drift of arm is large ..................40-499 H-12 Hydraulic drift of bucket is large ................. 40-500 H-13 Time lag of work equipment is large ................40-501 00-8 PC170LC-10 Find manuals at https://best-manuals.com...
  • Page 11 How to read this manual ....................... 50-4 Coating materials list ......................50-6 Special tools list ......................... 50-10 Sketches of special tools ....................50-15 Engine and cooling system ......................50-19 Removal and installation of supply pump assembly............... 50-19 Removal and installation of injector assembly............... 50-23 PC170LC-10 00-9...
  • Page 12 Removal and installation of pump controller assembly............50-198 Removal and installation of machine monitor assembly ............50-201 Removal and installation of pump swash plate sensor ............50-203 Removal and installation of mass air flow and temperature sensor ........50-204 00-10 PC170LC-10...
  • Page 13 Input and output signals of the air conditioner controller ............80-29 Parts and connectors layout....................80-31 Testing air leakage (duct) ....................80-35 Testing with self-diagnosis function ..................80-38 Testing vent (mode) changeover..................80-41 Testing FRESH/RECIRC air changeover................80-43 Testing sunlight sensor ....................... 80-44 PC170LC-10 00-11...
  • Page 14 Symbols in hydraulic circuit diagram ..................90-3 Hydraulic circuit diagram....................... 90-7 Electric circuit diagram ........................ 90-9 Symbols in electric circuit diagram ..................90-9 Electrical circuit diagram ..................... 90-13 Electric circuit diagram of air conditioner unit ................ 90-25 Index..................................1 00-12 PC170LC-10...
  • Page 15 Komatsu. Some of these methods require the use of the special tools designed by Komatsu for the specific purpose. • The symbol mark k is used for such matters that require special cautions during the work. The work indicated by the caution mark should be performed according to the instructions with special attention to the cautions.
  • Page 16 • Keep putting on the gloves during sling work. • When removing piping, prevent the fuel or oil (Put on the leather gloves, if available.) from spilling out. If any fuel or oil drips onto the 00-14 PC170LC-10...
  • Page 17 • Before starting work, check the wire ropes, • Apply wire ropes to the middle part of the hook. brake, clutch, controller, rails, over winding prevention device, ground fault circuit interrupter PC170LC-10 00-15...
  • Page 18 However, do not apply oil to the threaded 22.6 part of a bolt, nut or union. 28.6 35.3 Manufacturer Part name 55.3 DENSO ND-OIL8 79.6 ZXL100PG (equivalent to VALEO THERMAL 141.6 14.4 PAG46) SYSTEMS 221.6 22.6 SANDEN SP-10 318.3 32.4 00-16 PC170LC-10...
  • Page 19 (Use a torque wrench for tightening). a Example of fitting of O-ring • An O-ring is fitted to every joint of the air conditioner piping. For tightening torques, see "Others", "Precautions for disconnection and connection of air conditioner piping". PC170LC-10 00-17...
  • Page 20 • Fire around the machine due to highly heated materials to a safe place before starting. exhaust gas Some machines are equipped with KDPF (Komatsu Diesel Particulate Filter). KDPF is a system for purifying soot in exhaust gas. Its exhaust...
  • Page 21 • As for rubber, plastics, or parts (hoses, cables, and wiring harnesses, etc.) which contain those materials, ask the industrial waste treatment firms for their disposals in accordance with the local regulations. PC170LC-10 00-19...
  • Page 22 • Some attachments and optional parts described in this shop manual may not be arranged for certain areas. Contact your Komatsu distributor if one or some of them are required. • Materials and specifications are subject to change without notice.
  • Page 23 Unit • In this shop manual, the units are indicated with International System of units (SI). • For reference, Gravitational System of units which is used to be used is indicated in parentheses of { }. PC170LC-10 00-21...
  • Page 24 • The dimensions of parts change because of the of new products or equivalent are called the wear or deformation while they are used. When "standard value", which is indicated by a range the dimension changes exceeding certain value, or a target value. 00-22 PC170LC-10...
  • Page 25 "allowable interference". • The allowable interference shows the repair limit of the part of smaller tolerance. • The parts whose interferences are out of the allowable interference must be replaced or repaired. PC170LC-10 00-23...
  • Page 26 • If any dirt or dust sticks the parts of the fuel system, clean it off thoroughly with clean fuel. Precautions for replacing fuel filter cartridge • Be sure to use the Komatsu genuine fuel filter cartridge. • The common rail fuel injection system (CRI)
  • Page 27 Foreword, safety and general information Handling of intake system parts (PC220-A900-2A4-K-00-A) (Rev.2013/10) • The Komatsu Variable Geometry Turbocharger consists of more precise parts (variable mechanism) than the parts used in the conventional turbocharger. If foreign material enters this system, it may cause a failure. Use special care to prevent entry of the foreign material when servicing the air intake system.
  • Page 28 If the old oil is left in the system, the contaminant and sludge in the oil mix with the new oil and shorten the life of the new hydraulic oil. 00-26 PC170LC-10...
  • Page 29 The oil cleaning equipment can remove the ultra fine (approximately 3 μm) particles that the filter built in the hydraulic equipment can not remove. So, it is an extremely effective device. PC170LC-10 00-27...
  • Page 30 3. Hold hose adapter (1) or hose (5) and pull it out. a When the hose fitting is pulled back, the (Fig. 3) rubber cap will move approximately 3.5mm toward the hose, however, it is not a problem. a Since some hydraulic oil flows out, prepare an oil container. 00-28 PC170LC-10...
  • Page 31 (Fig. 9) 2. While keeping the condition of Step 1, turn lever (8) to the right (clockwise). (Fig. 7) 3. While keeping the conditions of Steps 1 and 2, pull out whole body (7) to disconnect it. (Fig. 8) PC170LC-10 00-29...
  • Page 32 (10) straight until it hits contact surface (b) of the hexagonal portion on the male side. (Fig. 3. While keeping the conditions of Steps 1 and 2, pull out whole body (9) to disconnect it. (Fig. 12) 00-30 PC170LC-10...
  • Page 33 The corroded or oxidized harness may be broken. contact surfaces may become shiny again (and contact may become normal) by connecting and disconnecting the connectors approximately 10 times. PC170LC-10 00-31...
  • Page 34 If any oil or grease, mud or dirt is stuck to the connector, wipe it off with a dry cloth or 00-32 PC170LC-10...
  • Page 35 If the connector cannot be corrected easily, remove the clamp and adjust the position. Connecting connectors 1. Check the connector visually. PC170LC-10 00-33...
  • Page 36 3. Perform a continuity test on the connector. After drying, leave wiring harness disconnected and perform a continuity test to check for any short circuits between pins caused by water. a After the connector is completely dried, blow the contact restorer and reassemble them. 00-34 PC170LC-10...
  • Page 37 1. Insert the connector securely until a click is (FRAMATOME-24) heard. Disconnection Pull lock type 1. Slide down lock (red) (L1). (PACKARD-2) Disconnection 1. Disconnect the connector (2) by pulling lock (B) (on the wiring harness side) of connector (2) outward. PC170LC-10 00-35...
  • Page 38 [1] since you cannot insert your fingers. While pushing up lock (C) of the connector Connection with flat-head screwdriver [1], pull out 1. Insert the connector securely until a click is connector (3) in the direction of the arrow. heard. 00-36 PC170LC-10...
  • Page 39 Housing (H1) is left on the wiring harness in a place where it is exposed to rain. side. • Do not place the controller on oil, water, or soil, or in a place that can be heated to a high PC170LC-10 00-37...
  • Page 40 If there is any value change on the multimeter, there may be a defective contact in the circuit. 00-38 PC170LC-10...
  • Page 41 CAVS automobile (nominal No. 1.25 and lower) (Type 2) Heat- General wiring for extremely resistant low- cold weather specification Heat-resistant cross voltage wire -50 to +110 linked polyethylene Wiring at high ambient temperature place automobile PC170LC-10 00-39...
  • Page 42 — — — compression compression compression Diameter of strand Conductor Cross- sectional — — — 0.56 0.88 1.29 area (mm d (approx.) — — — — — — CAVS Standard a "f" of nominal No. denotes "flexible". 00-40 PC170LC-10...
  • Page 43 — — — — — — — — — Others — — — — — — — — — — — — — — — — — — — — — — — — — — — — PC170LC-10 00-41...
  • Page 44 Disconnection of face seal type hoses and tubes Pipe joint side Hose side O-ring (3) Nominal No. Plug (1) Nut (2) 07376-70210 02789-00210 02896-11008 07376-70315 02789-00315 02896-11009 07376-70422 02789-00422 02896-11012 07376-70522 02789-00522 02896-11015 07376-70628 02789-00628 02896-11018 00-42 PC170LC-10...
  • Page 45 52.4 26.2 07371-31049 07378-11000 07000-13032 01643-51032 01044 51035 07379- 07372- 58.7 30.2 07371-31255 07378-11200 07000-13038 01643-51032 01250 51035 07379- 01010- 66.7 31.8 07371-51260 07378-11210 07000-13038 01643-51232 01260 81245 07379- 07372- 69.9 35.8 07371-31465 07378-11400 07000-13048 01643-51232 01460 51240 PC170LC-10 00-43...
  • Page 46 O-ring (2) Nominal No. 07040-10807 07002-10823 07040-11007 07002-11023 07040-11209 07002-11223 07040-11409 07002-11423 07040-11612 07002-11623 07040-11812 07002-11823 07040-12012 07002-12034 07040-12412 07002-12434 07041-13012 07002-13034 07040-13316 07002-13334 07041-13612 07002-13634 07040-14220 07002-14234 07040-15223 07002-15234 Removal of pipe joints of taper pipe thread type 00-44 PC170LC-10...
  • Page 47 If you wind the seal tape in the opposite direction, it becomes loose and comes off or its end part is pushed out, and that can cause oil leakage. PC170LC-10 00-45...
  • Page 48 • When the coolant is drained, tighten the drain valve securely, then refill the coolant reservoir with the coolant Komatsu recommends to the specified level. Start the engine to circulate the coolant in the piping, and add the coolant to the specified level again.
  • Page 49 3) Propose the periodic inspection (PM clinic, etc.) according to the service meter reading. How to operate KOMTRAX For the operating method of each screen of KOMTRAX, see "Global KOMTRAX Web Reference Manual (For Key Person)". PC170LC-10 00-47...
  • Page 50 824 to 1,030 {84 to 105} 1,180 to 1,470 {120 to 150} 1,520 to 1,910 {155 to 195} 1,960 to 2,450 {200 to 250} 2,450 to 3,040 {250 to 310} 2,890 to 3,630 {295 to 370} *1: Split flange bolt. *2: Flanged bolt. 00-48 PC170LC-10...
  • Page 51 This as a preview PDF file from best-manuals.com Download full PDF manual at best-manuals.com...