Komatsu WA1200-3 Manual
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Komatsu WA1200-3 Manual

Komatsu WA1200-3 Manual

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1
WA1200-
MACHINE MODEL
WA1200-3
•
This shop manual may contain attachments and optional equipment that are not available
in your area. Please consult your local Komatsu distributor for those items you may
require.
Materials and specifications are subject to change without notice.
•
WA1200-3 mount the Cummins QSK60 engine.
© 2011
1
All Rights Reserved
Printed in Japan 03-11 (01)
SERIAL NO.
50001 and up
SEBM018225
3
00-1
(25)

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Summary of Contents for Komatsu WA1200-3

  • Page 1 50001 and up • This shop manual may contain attachments and optional equipment that are not available in your area. Please consult your local Komatsu distributor for those items you may require. Materials and specifications are subject to change without notice.
  • Page 2 CONTENTS No. of page GENERAL ................ 01-1 STRUCTURE AND FUNCTION ........10-1 TESTING AND ADJUSTING .......... 20-1 DISASSEMBLY AND ASSEMBLY ......... 30-1 MAINTENANCE STANDARD ......... 40-1 OTHERS................90-1 00-2 WA1200-3...

  • Page 3: Safety Notice

    Proper service and repair are extremely important for safe machine operation. The service and repair techniques recommended by Komatsu and described in this manual are both effective and safe. Some of these techniques require the use of tools specially designed by Komatsu for the specific purpose.

  • Page 4: Preparatory Work

    When performing the work outdoors, park the machine on hard and level ground, then lower the work equip- ment to the ground. vi. Stop the engine. iii. Set the gear shift switch to the N posi- tion. vii. Chock the wheels. 00-3-1 WA1200-3 (23)
  • Page 5 LOCK position. vi. Loosen the oil filler cap (F) of the brake oil tank. iii. Set the joystick lever (lock lever) [3] to (Hold at a place where an opening the LOCK position. hiss is heard.) 00-3-2 WA1200-3 (23)
  • Page 6 . I n o r d e r t o a v o i d s u c h injuries, be sure to wear protective goggles, gloves and long-sleeved work clothing when collecting or filling the circuit with the refriger- ant. Quantity of refrigerant to be collected : 1.3 to 1.5 kg 00-3-3 WA1200-3 (23)
  • Page 7 (Bad example) If a hydraulic cylinder, pin or bearing is present between the welding rod and grounding clamp, it may be damaged due to internally generated sparks. 00-3-4 WA1200-3 (23)
  • Page 8 When removing components, be careful may suffer from gas poisoning. Accord- not to break or damage the electrical wir- ingly, open the windows and doors to ven- ing. Damaged wiring may cause electrical tilate well. fires. 00-4 WA1200-3 (23)
  • Page 9 If you grasp them, your fingers as large as 39.2 kN {4,000 kg}. may be caught. After the wire ropes are stretched, stop the crane and check the condi- tion of the slung load, wire ropes, and pads. 00-5 WA1200-3 (15)
  • Page 10 11) After operating the hoist, do not swing the control switch. 12) Remember the position of the main switch so that you can turn off the power immedi- ately in an emergency. 00-6 WA1200-3 (15)
  • Page 11 When connecting the refrigerant pip- ing, apply compressor oil for refriger- ant (R134a) (DENSO: ND-OIL8, VA L E O T H E R M A L S Y S T E M S : ZXL100PG (equivalent to PAG46)) to its O-rings. 00-7 WA1200-3 (23)

  • Page 12: How To Read The Shop Manual

    In addition, this section may give the specifications of attachments and options together. Revision and distribution Any additions, revisions, or other change of notices will be sent to KOMATSU distributors. Get the most up-to-date information before you start any work.
  • Page 13 Places where oil, etc. must be drained, and quantity to be drained. Units In this shop manual, the units are indicated with International System of units (SI). For reference, con- ventionally used Gravitational System of units is indicated in parentheses { }. 00-9 WA1200-3 (15)

  • Page 14: Explanation Of Terms For Maintenance Standard

    The tightness of fit is decided by the toler- ance. Indication of size of rotating shaft and hole and relationship drawing of them Example: Tolerance Standard size Shaft Hole –0.030 +0.046 –0.076 00-10 WA1200-3 (15)
  • Page 15 If a product is worn to the allowable value, it must be checked or repaired. Since the permissible value is estimated from vari- ous tests or experiences in most cases, however, it must be judged after consider- ing the operating condition and customer's requirement. 00-11 WA1200-3 (15)

  • Page 16: How To Read Electric Wire Code

    Insulator Soft polyvinyl chloride automobile Conduc- Annealed copper for elec- Heat-resis- General wiring in extremely tric appliance tant low-volt- –50 to +110 cold district, wiring at high-tem- age wire for Heat-resistant crosslinked perature place Insulator automobile polyethylene 00-12 WA1200-3 (15)
  • Page 17 (approx.) 10.4 12.0 13.6 Standard – – – – – – – – – Cov- Standard 10.8 11.4 13.0 13.6 16.0 17.6 er D Standard 10.8 11.4 13.0 13.6 16.0 17.6 “f” of nominal No. denotes flexible”. 00-13 WA1200-3 (15)
  • Page 18 – Others – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 00-14 WA1200-3 (15)

  • Page 19: Precautions When Carrying Out Operation

    07379-00500 07378-10500 07371-30500 If the part is not under hydraulic pressure, the following corks can be used. Dimensions Nominal Part Number number 07049-00608 07049-00811 07049-01012 07049-01215 07049-01418 11.5 07049-01620 13.5 07049-01822 07049-02025 07049-02228 18.5 07049-02430 07049-02734 22.5 00-15 WA1200-3 (15)
  • Page 20 If any part is loosened or damaged, retighten or repair it. Fuel system Check the piping for damage, the mounting bolts and nuts for looseness, and the joints for fuel leakage. If any part is loosened or damaged, retighten or repair it. 00-16 WA1200-3 (15)
  • Page 21 If any bolt or nut is loosened, retighten it. Checking muffler function Check the muffler for abnormal sound and sound different from that of a new muffler. If any abnormal sound is heard, repair the muffler, referring to “Troubleshooting” and “Disassembly and assembly”. 00-17 WA1200-3 (15)

  • Page 22: Method Of Disassembling And Connecting Push-Pull Type Coupler

    After inserting the hose in the mating adapter perfectly, pull it back to check its connecting condition. (Fig. 5) a When the hose is pulled back, the rubber cap portion moves toward the hose about 3.5 mm. This does not indicate abnormality, however. 00-18 WA1200-3 (15)
  • Page 23 Download the full PDF manual instantly. Our customer service e-mail: aservicemanualpdf@yahoo.com...

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