OILING AND CHARGING PROCEDURE
GENERAL
These procedures cove the Oiling and Charging of
HYDRAIR
®
II suspensions on Komatsu Trucks.
Suspensions which have been properly charged will
provide improved handling and ride characteristics
while also extending the fatigue life of the truck frame
and improving tire wear.
NOTE: Inflation pressures and exposed piston lengths
are calculated for a normal truck gross vehicle weight
(GVW). Additions to truck weight by adding body lin-
ers, tailgates, water tanks, etc. should be considered
part of the payload. Keeping the truck GVW within the
specification shown on the Grade/Speed chart in the
operator cab will extend the service life of the truck
main frame and allow the HYDRAIR
®
II suspensions to
produce a comfortable ride.
All HYDRAIR
®
II suspensions are charged with
compressed nitrogen gas with sufficient pressure
to cause injury or damage if improperly handled.
Follow all safety instructions, cautions, and warn-
ings provided in the following procedures to pre-
vent any accidents during Oiling and Charging.
Proper charging of HYDRAIR
®
II suspensions requires
that three (3) basic conditions be established in the
following order:
1. Oil level must be correct.
2. Suspension piston rod extension for nitrogen
charging must be correct and this dimension be
maintained during nitrogen charging.
3. Nitrogen charge pressure must be correct.
For best results, HYDRAIR
®
II suspensions should be
charged in pairs (fronts together and rears together).
If rears are to be charged, the fronts should be charged
first.
NOTE: Set up dimensions specified in the charts must
be maintained during oiling and charging procedures.
However, after the truck has been operated, these
dimensions may vary.
EQUIPMENT LIST
HYDRAIR
®
Charging Kit
Jacks and/or Overhead Crane
Support Blocks (Front and Rear) for:
•
Oiling Height Dimensions
•
Nitrogen Charging Height Dimensions
HYDRAIR
®
Oil (See Specifications Chart)
Dry Nitrogen (See Specifications Chart)
HYDRAIR
®
CHARGING KIT
Assemble service kit as shown in Figure 4-1 and attach
to container of pure dry nitrogen (8).
Installation of Charging Kit
1. Remove protective covers and charging valve
caps from suspensions to be charged.
2. Turn “T” handles (1, Figure 4-1) of adapters (2)
completely counterclockwise.
FIGURE 4-1. HYDRAIR
®
CHARGING KIT
NOTE: Arrangement of parts may vary from illustration
above, depending on Charging Kit P/N.
1. “T” Handle Valve
2. Charging Valve Adapter
3. Manifold Outlet Valves (from gauge)
4. Inlet Valve (from regulator)
5. Regulator Valve (Nitrogen Pressure)
6. Manifold
7. Charging Pressure Gauge (Suspensions)
8. Dry Nitrogen Gas (Specifications Figure 4-5)
H04005 9/99
Oiling and Charging Procedures
H4-1
730E, 830E, and 930E
Summary of Contents for 930E-2
Page 1: ......
Page 2: ......
Page 4: ...NOTES ...
Page 8: ...KOMATSU MODEL 930E Dump Truck A 4 Introduction A00017 03 01 ...
Page 10: ...NOTES A1 2 Index A01001 2 94 ...
Page 12: ...930E MAJOR COMPONENTS A2 2 Major Component Description A02055 ...
Page 35: ...START HERE Walk Around Inspection A03017 General Safety and Operating Instructions A3 21 ...
Page 46: ...NOTES A3 32 General Safety and Operating Instructions A03017 ...
Page 78: ...NOTES B1 2 Index B01016 ...
Page 88: ...NOTES B3 6 Dump Body B03013 03 01 ...
Page 92: ...NOTES B4 4 Fuel Tank B04015 ...
Page 94: ...NOTES C1 2 Index C01021 03 01 ...
Page 118: ...NOTES C5 6 Air Filtration System C05013 5 98 ...
Page 126: ...NOTES D2 6 24VDC Electric Supply System D02018 ...
Page 142: ...NOTES D3 16 24VDC System Components D03019 04 01 ...
Page 146: ...FIGURE 2 1 PROPULSION SYSTEM DIAGRAM E2 2 Electrical Propulsion System Components E02014 3 01 ...
Page 196: ...NOTES E2 52 Electrical Propulsion System Components E02014 3 01 ...
Page 240: ...NOTES E3 44 AC Drive System Electrical Checkout Procedure 3 01 E03015 Release 17 Software ...
Page 242: ...NOTES G1 2 Index G01017 ...
Page 250: ...NOTES G2 8 Tires and Rims G02015 ...
Page 274: ...NOTES H1 2 Index H01013 04 01 ...
Page 282: ...NOTES H2 8 Front Suspensions H02013 2 01 ...
Page 288: ...NOTES H3 6 Rear Suspensions H03013 ...
Page 334: ...NOTES J3 32 Brake Circuit Component Service J03019 1 99 ...
Page 378: ...NOTES L2 8 Hydraulic System L02028 ...
Page 401: ...FIGURE 4 5 FLOW AMPLIFIER VALVE L04031 Steering Circuit L4 7 ...
Page 403: ...FIGURE 4 6 FLOW AMPLIFIER NO STEER L04031 Steering Circuit L4 9 ...
Page 405: ...FIGURE 4 7 FLOW AMPLIFIER LEFT STEER L04031 Steering Circuit L4 11 ...
Page 407: ...FIGURE 4 8 FLOW AMPLIFIER RIGHT STEER L04031 Steering Circuit L4 13 ...
Page 409: ...FIGURE 4 9 FLOW AMPLIFIER NO STEER EXTERNAL SHOCK LOAD L04031 Steering Circuit L4 15 ...
Page 414: ...NOTES L4 20 Steering Circuit L04031 ...
Page 422: ...NOTES L5 8 Steering Control Unit L05021 ...
Page 429: ...L06021 Steering Circuit Component Repair L6 7 ...
Page 450: ...NOTES L6 28 Steering Circuit Component Repair L06021 ...
Page 466: ...NOTES L7 16 Hoist Circuit L07023 ...
Page 492: ...NOTES L9 6 Hydraulic System Filters L09008 ...
Page 504: ...NOTES L10 12 Hydraulic Check out Procedure L10012 ...
Page 508: ...NOTES M1 2 Index M01034 03 01 ...
Page 518: ...NOTES M2 3 10 Ansul Checkfire Electric Detection and Actuation System M02003 ...
Page 524: ...NOTES M5 4 Wiggins Quick Fill Fuel System M05002 10 96 ...
Page 532: ...NOTES M8 8 Special Tools M08012 9 99 ...
Page 560: ...NOTES M9 28 Air Conditioning System M09010 6 97 for HFC 134a Refrigerant ...
Page 618: ...M20 20 Payload Meter II M20007 10 00 ...
Page 619: ...M20007 10 00 Payload Meter II M20 21 ...
Page 627: ...M20007 10 00 Payload Meter II M20 29 ...
Page 634: ...NOTES N1 2 Index N01020 03 01 ...
Page 654: ...NOTES N3 6 Cab Components N03011 7 98 ...
Page 660: ...NOTES N4 6 Operator Comfort N04020 ...
Page 686: ...NOTES N5 26 Operator Cab Controls N05044 ...
Page 688: ...NOTES P1 2 Index P01024 ...
Page 691: ...P02034 Lubrication and Service P2 3 ...
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Page 737: ...NOTES R1 2 930E Schematics R01048 with Cummins QSK60 Series Engine ...
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