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J5-6
Rockwell Wheel Speed Front Disc Brakes
J05019
FRONT SERVICE BRAKE CONDITIONING (BURNISHING) PROCEDURE
After any brake lining replacement, or at new truck
start up, the brake linings and discs must be bur-
nished. A surface pyrometer will be necessary to
accurately record disc temperature during brake bur-
nishing procedure.
SAFETY PRECAUTIONS
.
• BEFORE DISCONNECTING PRESSURE
LINES, REPLACING COMPONENTS IN THE
HYDRAULIC CIRCUITS, OR INSTALLING
TEST GAUGES, ALWAYS BLEED DOWN
HYDRAULIC STEERING ACCUMULATORS
AND BRAKE SYSTEM ACCUMULATORS.
The steering accumulators can be bled down
with engine shut down, turning the key-
switch “Off” and waiting 90 seconds. Con-
firm the steering pressure is released by
turning the steering wheel - No front wheel
movement should occur.
The brake accumulators are bled by opening
the two valves (7, Figure 5-5) on the brake
manifold (inside brake cabinet).
• BEFORE DISABLING ANY BRAKE CIRCUIT,
insure truck wheels are blocked to prevent
possible rollaway.
• REAR BRAKES MUST BE DISCONNECTED
WHEN BURNISHING THE FRONT BRAKES.
Front brakes require burnishing indepen-
dently from rear brakes in order to control
disc temperatures
• EXTREME SAFETY PRECAUTIONS SHOULD
BE USED WHEN MAKING HIGH-ENERGY/
HIGH-SPEED BRAKE STOPS ON ANY
DOWNGRADE.
Safety berms or adequate run off ramps are
necessary for any stopping performance
tests.
• Heavy smoke and foul odor from brake lin-
ings is normal during burnishing proce-
dures.
Front Brake Conditioning
1. To prevent overheating and possible destruc-
tion of rear brakes, temporarily disconnect the
REAR brakes while burnishing front wheel
brakes as follows:
a. Relieve stored pressure in hydraulic system
according to the previous
“WARNING”
instructions.
b. Disconnect “BR” hydraulic tube (1, Figure 5-
5) at both ends inside brake control cabinet.
Install a #8, 0.75 x 16 UNF-2B, 37° flare Cap
Nut (WA2567, or equivalent) on each fitting
where tube was removed. Tighten caps to
standard torque to prevent leakage. Cap or
plug tube to prevent contamination.
NOTE: This will disconnect the hydraulic supply from
the operator's brake pedal to the rear brakes. There
will be a noticeable loss of “braking action” at the
pedal. However, this method of temporarily disabling
the brakes will still permit the application of Brake
Lock, in the event of an emergency.
c. Close brake accumulator bleed valves (7,
Figure 5-5).
2. Drive truck at speeds of 5 to 10 MPH with brake
alternately applied and released using sufficient
pressure to make engine “work” to a noticeable
extent during apply.
NOTE: The Override Switch on the instrument panel
must be depressed and held by the operator in order
to propel with the brakes applied.
3. Apply front brakes at full pressure until discs
reach 900°- 1000°F (482°-538°C). Hold in over-
ride switch to maintain propulsion to obtain disc
temperature. Check temperature after 200
yards (182 meters).
4. Let discs cool to 400°F (204°C) and repeat pro-
cedure two more cycles.
5. Allow front disc to cool to 300°F (149°C).
6. RECONNECT rear brakes:
a. Relieve pressure in hydraulic system accord-
ing to the previous
“WARNING”
instruc-
tions.
b. Remove Cap Nuts and reinstall tube (1).
Tighten tube nuts to standard torque.
c. Close accumulator bleed valve (7) handles.
7. Start engine and check for leaks. Bleed brakes
according to bleeding procedures.
8. Insure all brakes are functioning properly.
Содержание 830E
Страница 1: ...CEBM013200 Shop Manual DUMP TRUCK SERIAL NUMBERS A30708 A30732 ...
Страница 2: ......
Страница 4: ...NOTES ...
Страница 8: ...A 4 Introduction A00032 KOMATSU MODEL 830E TRUCK ...
Страница 9: ... ...
Страница 10: ... ...
Страница 12: ...A2 2 Major Component Description A02063 830E MAJOR COMPONENTS ...
Страница 32: ...A3 18 General Safety and Operating Instructions A03020 NOTES ...
Страница 34: ...A3 20 General Safety and Operating Instructions A03020 ...
Страница 46: ...A3 32 General Safety and Operating Instructions A03020 NOTES ...
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Страница 82: ...NOTES B1 2 Index B01018 ...
Страница 92: ...NOTES B3 6 Dump Body B03018 ...
Страница 94: ...C1 2 Index C01024 NOTES ...
Страница 116: ...NOTES C5 6 Air Filtration System C05012 4 98 ...
Страница 135: ...D02023 24 VDC Electric Supply System D2 17 FIGURE 2 8 CRANKING MOTOR ASSEMBLY ...
Страница 181: ...E02016 2 02 Electrical Propulsion Components E2 25 ...
Страница 228: ...E2 72 Electrical Propulsion Components 2 02 E02016 NOTES ...
Страница 290: ...G2 8 Tires and Rims 04 03 G02004 NOTES ...
Страница 304: ...G3 14 Front Wheel Hub and Spindle 04 03 G03018 NOTES ...
Страница 312: ...H1 2 Index 5 03 H01015 NOTES ...
Страница 324: ...H3 4 Rear Suspensions 4 03 H03015 ...
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Страница 342: ...1 Actuator Base 2 Brake Valve 3 Orfice Set Screw FIGURE 2 3 BRAKE VALVE PARTIAL CUT AWAY J2 6 Brake Circuit J02032 ...
Страница 370: ...J4 10 Brake Circuit Check Out Procedure J04031 NOTES ...
Страница 380: ...J5 8 Rockwell Wheel Speed Front Disc Brakes J05019 NOTES ...
Страница 410: ...L2 4 Hydraulic System L02027 NOTES ...
Страница 426: ...L3 16 Hydraulic Component Repair 7 02 L03026 NOTES ...
Страница 429: ...L04037 Steering Circuit L4 3 FIGURE 4 2 FLOW AMPLIFIER ...
Страница 431: ...L04037 Steering Circuit L4 5 FIGURE 4 3 FLOW AMPLIFIER No Steer ...
Страница 433: ...L04037 Steering Circuit L4 7 FIGURE 4 4 FLOW AMPLIFIER Steering Left ...
Страница 435: ...L04037 Steering Circuit L4 9 FIGURE 4 5 FLOW AMPLIFIER Steering Right ...
Страница 437: ...L04037 Steering Circuit L4 11 FIGURE 4 6 FLOW AMPLIFIER No Steer External Shock Load ...
Страница 441: ...L04037 Steering Circuit L4 15 FIGURE 4 9 CUT AWAY VIEW OF STEERING PUMP ...
Страница 444: ...L4 18 Steering Circuit L04037 NOTES ...
Страница 453: ...L05026 Steering Component Repair L5 9 FIGURE 5 7 FLOW AMPLIFIER VALVE ...
Страница 476: ...L5 32 Steering Component Repair L05026 NOTES ...
Страница 483: ...L07027 Hoist Circuit L7 7 FIGURE 7 6 FLOAT POSITION ...
Страница 485: ...L07027 Hoist Circuit L7 9 FIGURE 7 7 POWER UP ...
Страница 487: ...L07027 Hoist Circuit L7 11 FIGURE 7 8 HOLD POSITION ...
Страница 489: ...L07027 Hoist Circuit L7 13 FIGURE 7 9 POWER DOWN ...
Страница 491: ...L07027 Hoist Circuit L7 15 FIGURE 7 10 FLOAT POSITION ...
Страница 492: ...L7 16 Hoist Circuit L07027 NOTES ...
Страница 504: ...L8 12 Hoist Circuit Component Repair L08031 FIGURE 8 18 HOIST CYLINDER ...
Страница 512: ...L8 20 Hoist Circuit Component Repair L08031 NOTES ...
Страница 523: ...L10016 05 03 Hydraulic Check out Procedure L10 11 FIGURE 10 5 FLOW AMPLIFIER VALVE ...
Страница 532: ...NOTES M1 2 Index M01047 ...
Страница 546: ...NOTES M5 4 Wiggins Quick Fill Fuel System M05002 10 96 ...
Страница 556: ...NOTES M8 6 Special Tools M08005 7 02 ...
Страница 592: ...M9 36 Air Conditioning System 05 02 M09010 for HFC 134a Refrigerant NOTES ...
Страница 596: ...M19 4 Radiator Shutters M19002 NOTES ...
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Страница 678: ...N2 16 Truck Cab 04 03 N02014 NOTES ...
Страница 682: ...N3 4 Cab Components N03018 NOTES ...
Страница 688: ...N4 6 Operator Comfort N04023 NOTES ...
Страница 710: ...N5 22 Operator Controls N05056 NOTES ...
Страница 712: ...P1 2 Index P01028 NOTES ...
Страница 715: ...P02039 Lubrication and Service P2 3 ...
Страница 726: ...P2 14 Lubrication and Service P02039 NOTES ...
Страница 744: ...P3 18 Automatic Lubrication System P03022 NOTES ...
Страница 745: ... 0 0 1 2 0 0 3 3 0 0 1 2 0 4 5 6 7 6 4 ...
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Страница 754: ...R1 2 System Schematics R01060 NOTES ...
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Страница 756: ...Electrical Schematic HH354 Jun 03 Hydrauiic Schematic Brake System 830E Effective with A30650 UP ...
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