Related Manuals for Komatsu D37EX -23
Summary of Contents for Komatsu D37EX -23
- Page 1 SEN06061-03 BULLDOZER D37EX D37PX D39EX D39PX D37EX- 80001 D37PX- 80001 SERIAL NUMBERS and up D39EX- 90001 D39PX- 90001...
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- Page 3 SHOP MANUAL BULLDOZER D37EX-23 D37PX-23 D39EX-23 D39PX-23 Model Serial Number D37EX-23 80001 and up D37PX-23 80001 and up D39EX-23 90001 and up D39PX-23 90001 and up 00 Index and foreword 1 00 Index and foreword D37, 39-23 00-1 Find manuals at https://best-manuals.com...
- Page 4 00 Index and foreword Index Index (ALL-0310-001-A-00-A) 00 Index and foreword ........................00-1 Index ............................00-2 Foreword, safety and general information ................... 00-14 Important safety notice ....................... 00-14 How to read the shop manual....................00-21 Explanation of terms for maintenance standard ..............00-23 Handling equipment of fuel system devices ................
- Page 5 00 Index and foreword Index Work equipment and cooling fan pump ................10-105 Control valve ........................10-116 Ripper PPC valve......................10-133 Angle control EPC valve ....................10-138 Accumulator ........................10-143 Work equipment ........................10-145 Blade ..........................10-145 Ripper ..........................10-146 Piston valve........................
- Page 6 00 Index and foreword Index Releasing remaining pressure in work equipment cylinder ............. 30-56 Testing and adjusting work equipment oil pressure..............30-57 Testing source pressure of control circuit................30-59 Testing outlet pressure of work equipment EPC valve and fan EPC valve ....... 30-60 Isolating the parts causing hydraulic drift in blade and ripper ..........
- Page 7 00 Index and foreword Index Failure code [CA132] Throttle Sensor Low Error ..............40-132 Failure code [CA144] Coolant Temp Sens High Error ............40-134 Failure code [CA145] Coolant Temp Sens Low Error ............40-136 Failure code [CA153] Chg Air Temp Sensor High Error ............40-138 Failure code [CA154] Chg Air Temp Sensor Low Error............
- Page 8 00 Index and foreword Index Failure code [CA2357] EGR Valve Servo Error ..............40-227 Failure code [CA2555] Grid Htr Relay Volt Low Error ............40-228 Failure code [CA2556] Grid Htr Relay Volt High Error ............40-230 Failure code [CA2765] Inj Trim Data Error ................40-232 Failure code [CA3419] Mass Air Flow Sensor Sup Volt High Error ........
- Page 9 00 Index and foreword Index Failure code [DDP6KB] Brake Pressure Sensor: Hot Short ..........40-327 Failure code [DDP6MA] Brake pressure sensor: Malfunction ..........40-329 Failure code [DDU1FS] Parking lever Switch 2: Signal mismatch ......... 40-331 Failure code [DDU1KA] Parking lever Sw2:Open ..............40-333 Failure code [DDU1KY] Parking lever Sw2:Hot Short ............
- Page 10 00 Index and foreword Index Failure code [DR21KX] Camera 2 Picture Rev. Drive Abnormality ........40-432 Failure code [DR31KX] Camera 3 Picture Rev. Drive Abnormality ........40-433 Failure code [DV20KB] Back-up alarm : Short circuit ............40-434 Failure code [DW4BKA] Parking brake solenoid: Open............40-436 Failure code [DW4BKB] Parking brake solenoid: Short circuit ..........
- Page 11 00 Index and foreword Index E-6 When starting switch is turned to ON position (with engine stopped), basic check monitor lights up ......................40-535 E-7 Air cleaner clogging monitor lights up in yellow while engine is running ......40-536 E-8 Charge level monitor lights up in red while engine is running .......... 40-537 E-9 Engine coolant temperature monitor lights up in red while engine is running ....
- Page 12 00 Index and foreword Index H-16 Time lag of blade lift is large ..................40-622 H-17 Hydraulic drift of lifted blade is large................40-623 H-18 Hydraulic drift of tilted blade is large................40-624 H-19 Unusual noise is heard from around work equipment pump or control valve ....40-625 H-20 HST oil temperature (hydraulic oil temperature) rises too high ........
- Page 13 00 Index and foreword Index Power train..........................50-86 Removal and installation of HST motor and final drive assembly ..........50-86 Disassembly and assembly of final drive ................50-88 Undercarriage and frame......................50-96 Removal and installation of idler and recoil spring assembly ..........50-96 Disassembly and assembly of idler ..................
- Page 14 00 Index and foreword Index Track frame and idler cushion ..................... 60-25 Idler ..........................60-28 Track roller ........................60-36 Carrier roller ........................60-44 Track shoe ........................60-48 Hydraulic system ........................60-60 Hydraulic tank........................60-60 Work equipment and cooling fan pump ................60-61 Control valve ........................
- Page 15 00 Index and foreword Index Symbols in electric circuit diagram ..................90-9 Electrical circuit diagram ..................... 90-13 Index..................................1 D37, 39-23 00-13...
- Page 16 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 17 00 Index and foreword Foreword, safety and general information steps when getting on or off the machine. Never • When removing piping, prevent the fuel or oil jump on or off the machine. When the scaffold is from spilling out. If any fuel or oil drips onto the not provided, use steps or stepladder to secure floor, wipe it off immediately.
- Page 18 00 Index and foreword Foreword, safety and general information • Keep putting on the gloves during sling work. • Use the specified eye bolts and fix wire ropes, (Put on the leather gloves, if available.) chains, etc. to them with shackles, etc. •...
- Page 19 00 Index and foreword Foreword, safety and general information Nominal • Before starting work, check the wire ropes, Allowable load diameter of rope brake, clutch, controller, rails, over winding prevention device, ground fault circuit interrupter for electric shock prevention, crane collision 221.6 22.6 prevention device, and energizing warning lamp,...
- Page 20 00 Index and foreword Foreword, safety and general information Manufacturer Part name DENSO ND-OIL8 ZXL100PG (equivalent to VALEO THERMAL PAG46) SYSTEMS SANDEN SP-10 • When tightening nuts of the air conditioner hoses and tubes, be sure to use 2 wrenches. Use one wrench to fix and tighten the nut with the other wrench to the specified torque (Use a torque wrench for tightening).
- Page 21 • Fire around the machine due to highly heated materials to a safe place before starting. exhaust gas This machine is equipped with KDPF (Komatsu Diesel Particulate Filter). KDPF is a system for purifying soot in exhaust gas. Its...
- Page 22 00 Index and foreword Foreword, safety and general information Action if fire occurs (ALL-0000-17A-K-01-A) • Turn the starting switch to OFF position to stop the engine. • Use the handrails and steps to get off the machine. • Do not jump off the machine. You may fall or suffer serious injury.
- Page 23 • 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 24 00 Index and foreword Foreword, safety and general information Symbol Important safety and quality portions are marked with the following symbols so that the shop manual is used practically. Symbol Item Remarks The special safety precautions required for performing work are Safety described.
- Page 25 00 Index and foreword Foreword, safety and general information Explanation of terms for maintenance standard (ALL-0330-006-A-01-A) (Rev. 2012/10) • The chapter of maintenance standard shows judgement criteria to determine the products to be replaced or to be reused. The judgement criteria are described by using the following terms. Standard dimension and tolerance •...
- Page 26 00 Index and foreword Foreword, safety and general information the parts can not be used any longer. This value is called "repair limit". • If a part is worn to the repair limit, it must be replaced or repaired. • The performance and function of the products lower while they are used.
- Page 27 • 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 28 Foreword, safety and general information Handling of intake system parts (PC220-A900-2A4-K-00-A) (Rev.2012/01) • The Komatsu Variable Geometry Turbocharger (KVGT) 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 29 00 Index and foreword Foreword, safety and general information Handling of hydraulic equipment (ALL-C000-2A4-P-01-A) (Rev. 2012/10) • With the increase in pressure and precision of the hydraulic components, the most common cause of a failure is dirt (foreign material) in the hydraulic circuit. Therefore, the special care must be taken when adding hydraulic oil,or when disassembling or assembling the hydraulic components.
- Page 30 00 Index and foreword Foreword, safety and general information Flushing operations • After disassembling the equipment or when changing the hydraulic oil with new one, flush the system to remove the contaminant and sludge left in the hydraulic circuit as well as the oil which includes them.
- Page 31 00 Index and foreword Foreword, safety and general information Method of disconnecting and connecting of push-pull type coupler (ALL- C930-001-P-00-A) (Rev. 2012/01) Loosen the oil filler cap of the hydraulic tank slowly to release the remaining pressure in the hydraulic tank. Even if the remaining pressure is released from the hydraulic tank, some hydraulic oil flows out when the hose is disconnected.
- Page 32 00 Index and foreword Foreword, safety and general information Type 2 (ALL-C930-925-P-02-A) Disconnection Connection 1. While holding the fitting, push body (7) in straight 1. While holding the fitting, push body (7) in straight until sliding prevention ring (6) hits contact until sliding prevention ring (6) hits contact surface (a) at the hexagonal part on the male surface (a) at the hexagonal part on the male...
- Page 33 00 Index and foreword Foreword, safety and general information Type 3 (ALL-C930-925-P-03-A) Disconnection Connection 1. While holding the fitting, push body (9) in straight 1. While holding the fitting, push body (9) in straight until sliding prevention ring (8) hits contact until sliding prevention ring (8) hits contact surface (b) at the hexagonal portion on the male surface (a) at the hexagonal portion on the male...
- Page 34 00 Index and foreword Foreword, safety and general information Handling of electrical equipment (ALL-E000-2A4-P-01-A) (Rev. 2012/11) • To maintain the performance of the machine over a long period, and to prevent failures or troubles before they occur, correct "operation", "maintenance and inspection" "troubleshooting", and "repairs" must be performed.
- Page 35 00 Index and foreword Foreword, safety and general information blow it with compressed air and spray it with electrical contact restorer. a When wiping the joint portion of the connector, be careful not to apply excessive force or deform the pins. a If there is oil or water in the compressed air, it causes the contacts to become dirtier.
- Page 36 00 Index and foreword Foreword, safety and general information • Check that there is no oil, dirt or water stick to the connector pins (joint portion). • Check that the connector pins are free from deformation, defective contact, corrosion, or damage.
- Page 37 00 Index and foreword Foreword, safety and general information • If the connector clamp is removed, be sure to Drying wiring harness return it to its original position. And check • If there is any oil or dirt on the wiring harness, that it is securely installed.
- Page 38 00 Index and foreword Foreword, safety and general information 2. While pressing lock (L2), pull out connector (1). Handling of connectors used on engine Slide, lock type (FRAMATOME-3, FRAMATOME-2) Disconnection 1. Slide lock (L1) to the right. 2. While pressing lock (L2), pull out connector (1) toward you.
- Page 39 00 Index and foreword Foreword, safety and general information Connection Connection 1. Insert the connector securely until a click is 1. Insert the connector securely until a click is heard. heard. (AMP-3) Push lock type Disconnection (BOSCH-3) 1. While pressing lock (E), pull out connector (5) in Disconnection the direction of the arrow.
- Page 40 00 Index and foreword Foreword, safety and general information (SUMITOMO-3) Disconnection 1. While pressing lock (E), pull out connector (5) in the direction of the arrow. a Pull the connector straight up. Connection 1. Insert the connector to the end while aligning its grove to the other.
- Page 41 00 Index and foreword Foreword, safety and general information temperature even for a short period of time. (Place it on a suitable dry stand.) • Precautions when performing arc welding When performing arc welding on the machine body, disconnect wiring harness connectors connected to the controller.
- Page 42 00 Index and foreword Foreword, safety and general information How to read electric wire code (ALL-E500-030-P-00-A) (Rev. 2012/10) • In the electrical circuit diagram, material, thickness and color of each electric wire are indicated by symbols. The wire code is helpful in understanding the electrical circuit diagram. Example) AEX 0.85 L: Indicates blue, heat-resistant, low-voltage wire for automobile, having nominal No.
- Page 43 00 Index and foreword Foreword, safety and general information Dimensions (Table 2) (0.5) 0.75f (0.85) 1.25f (1.25) Nominal No. 0.5f Number of strands/ 7/0.32 Diameter of 0.18 0.18 0.32 0.18 0.32 0.26 0.32 0.26 0.32 0.32 strand Conductor Cross- sectional 0.51 0.56 0.76...
- Page 44 00 Index and foreword Foreword, safety and general information Color codes table (Table 3) Color Code Color of wire Color Code Color of wire Light green & White Black Light green & Yellow Brown Brown & Black Blue & Red Brown &...
- Page 45 00 Index and foreword Foreword, safety and general information Precautions when performing operation (ALL-1160-927-A-00-A) (Rev. 2012/11) • When performing "testing and adjusting" of the machine, "removal and installation" and "disassembly and assembly" of the components, observe the following general cautions. Precautions for removal and disassembly work •...
- Page 46 00 Index and foreword Foreword, safety and general information Disconnection of taper seal type hoses and tubes Pipe joint side Hose side Nominal No. Plug (1) Nut (2) 07376-50210 07222-00210 07376-50315 07222-00312 07376-50422 07222-00414 07376-50522 07222-00515 07376-50628 07222-00616 07376-51034 07222-01018 07376-51234 07222-01219 07376-51443...
- Page 47 00 Index and foreword Foreword, safety and general information Bolt pitch (mm) Hose side Tube side O-ring (4) Bolt (5) Washer (6) minal Split flange Sleeve head Flange (1) 07379- 01010- 79.4 36.5 07371-51470 07378-11410 07000-13048 01643-31445 01470 81455 07379- 07372- 77.8 42.8...
- Page 48 00 Index and foreword Foreword, safety and general information Plug (1) Nominal Nominal No. thread size Square head type (A) Hexagonal socket head (B) 07042-00108 07043-00108 07042-00211 07043-00211 07042-00312 07043-00312 07042-00415 07043-00415 07042-00617 07043-00617 07042-01019 07043-01019 07042-01222 07043-01222 07042-01422 07043-01422 07042-02026 07043-02026 Precautions for installation and assembly work...
- Page 49 • 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 50 00 Index and foreword Foreword, safety and general information Practical use of KOMTRAX (ALL-Q210-13V-K-00-A) (Rev. 2012/10) KOMTRAX system transmits various machine information by use of the radio communication and KOMTRAX operator can refer this information in the office and provide various services to the customers. When KOMTRAX is installed on the machine, the machine information can be checked through the KOMTRAX system and the testing and troubleshooting can be performed efficiently.
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