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RB48 BROOM
4.9
ROSCO - A LeeBoy Company
Maintenance
MAINTENANCE
3.
If this technique isolates the leak, replace
the defective hose assembly or fitting. Never
attempt to repair hydraulic hoses and/or leave
tape attached.
C.
An operator should inspect the broom
during operation for hydraulic leaks which may
only be noticeable while the unit is running.
Pumps and Motors
The hydraulic pump and motor generally require
no regularly scheduled maintenance. As stated
above, frequent inspection for leaks will indicate
the need for service of these components.
A.
Adjusting Priority Relief Valve - The
Priority Circuit on the hydraulic pump supplies the
power steering with approximately 4 GPM of
hydraulic flow. This flow goes to the steering
circuit before any other circuit. Occasionally, it
may be necessary to readjust the Relief Valve
setting. The Priority Relief Valve controls the
maximum operating pressure for the power
steering and brush lift and swing circuits. The
Relief Valve is located in the hydraulic pump
attached to the rear of the hydrostatic pump on the
engine flywheel housing. The following are signs
that the Priority Relief Valve needs adjusting:
-
Total or partial loss of steering functions or
hard steering
-
Constant noise from hydraulic pump when
using steering or brush lift and swing
-
Hydraulic oil overheating
1.
Plumb in a 0 to 5000 psi pressure gauge
into the Priority Flow Circuit as shown in
Figure 4-D. Parts needed for this, including
a pressure gauge, can be obtained from
your authorized Rosco dealer. Part
numbers are listed in Figure 4-D.
2.
Start the engine and warm the hydraulic oil
to at least 100° F.
Figure 4-D
Setting Priority Relief Valve
3.
Set the parking brake and be sure the
transmission is in neutral. Use the foot
brake as an extra precaution.
CAUTION: Use extreme
caution when working under the
ROSCO Broom while adjusting
priority relief pressure. Have
another person who is familiar
with the machine assist you.
4.
Increase engine speed to 2500 RPM.
5.
Raise the brush using the lift circuit until it
stops. Continue to hold pressure to lift
cylinder until a gauge reading can be
taken.
6.
The pressure gauge should read 1500 +/-
50 psi.
7.
Adjust relief pressure by removing the
locknut and turning the adjusting screw
clockwise to increase pressure and
counterclockwise to decrease pressure.
Содержание RB48
Страница 10: ...Introduction 1 8 ROSCO A LeeBoy Company RB48 BROOM NOTES ...
Страница 32: ...RB48 BROOM ROSCO A LeeBoy Company Operation 3 10 OPERATION NOTES ...
Страница 50: ...RB48 BROOM ROSCO A LeeBoy Company Maintenance 4 18 NOTES ...
Страница 58: ...ROSCO A LeeBoy Company Troubleshooting 5 8 RB48 BROOM NOTES ...
Страница 61: ...ROSCO A LeeBoy Company 6 3 Parts Book REF REV RB48 BROOM FINAL DETAIL GROUP 21092 N ...
Страница 62: ...REF REV 21092 N RB48 BROOM FINAL DETAIL GROUP Parts Book 6 4 ROSCO A LeeBoy Company ...
Страница 63: ...REF REV 21092 N RB48 BROOM FINAL DETAIL GROUP ROSCO A LeeBoy Company 6 5 Parts Book ...
Страница 65: ...ROSCO A LeeBoy Company 6 7 Parts Book REF REV RB48 BROOM 29187 D ENGINE SUB ASSEMBLY CUMMINS ...
Страница 67: ...ROSCO A LeeBoy Company 6 9 Parts Book REF REV RB48 BROOM 29187 D ENGINE SUB ASSEMBLY CUMMINS ...
Страница 71: ...ROSCO A LeeBoy Company 6 13 Parts Book REF REV RB48 BROOM 29188 C ENGINE SUB ASSEMBLY PERKINS ...
Страница 73: ...ROSCO A LeeBoy Company 6 15 Parts Book REF REV RB48 BROOM ENGINE SUB ASSEMBLY PERKINS 29188 C ...
Страница 79: ...ROSCO A LeeBoy Company 6 21 Parts Book REF REV RB48 BROOM 28240 D CONTROL GROUP ...
Страница 83: ...ROSCO A LeeBoy Company 6 25 Parts Book REF REV RB48 BROOM INSTRUMENT PANEL 39140 0 ...
Страница 85: ...ROSCO A LeeBoy Company 6 27 Parts Book REF REV RB48 BROOM INSTRUMENT FUSE PANEL 28032 0 ...
Страница 87: ...ROSCO A LeeBoy Company 6 29 Parts Book REF REV RB48 BROOM 26970 0 FUSE PANEL SUB ASSEMBLY ...
Страница 89: ...ROSCO A LeeBoy Company 6 31 Parts Book REF REV RB48 BROOM 29084 0 FRAME ASSEMBLY ...
Страница 91: ...ROSCO A LeeBoy Company 6 33 Parts Book REF REV RB48 BROOM 29043 A FRONT AXLE ASSEMBLY ...
Страница 97: ...ROSCO A LeeBoy Company 6 39 Parts Book REF REV RB48 BROOM 29048 0 ENGINE COVER ASSEMBLY ...
Страница 103: ...ROSCO A LeeBoy Company 6 45 Parts Book REF REV RB48 BROOM 28235 G CAB ASSEMBLY 2 DOOR ...
Страница 105: ...ROSCO A LeeBoy Company 6 47 Parts Book REF REV RB48 BROOM CAB ASSEMBLY 2 DOOR 28235 G ...
Страница 106: ...RB48 BROOM REF REV 28235 G CAB ASSEMBLY 2 DOOR Parts Book 6 48 ROSCO A LeeBoy Company ...
Страница 112: ...Parts Book 6 54 ROSCO A LeeBoy Company ITEM PART NO QTY DESCRIPTION RB48 BROOM REF REV 38653 0 CAB AIR COND HEATER KIT ...
Страница 113: ...ROSCO A LeeBoy Company 6 55 Parts Book REF REV RB48 BROOM 38653 0 CAB AIR COND HEATER KIT ...
Страница 115: ...ROSCO A LeeBoy Company 6 57 Parts Book REF REV RB48 BROOM BRUSH FRAME GROUP QWK CHANGE 28855 B ...
Страница 117: ...ROSCO A LeeBoy Company 6 59 Parts Book REF REV RB48 BROOM WATER SPRAY GROUP 28241 B ...
Страница 121: ...ROSCO A LeeBoy Company 6 63 Parts Book REF REV RB48 BROOM HYDRAULIC GROUP 29085 A ...
Страница 123: ...ROSCO A LeeBoy Company 6 65 Parts Book REF REV RB48 BROOM HYDRAULIC GROUP 29085 A ...
Страница 125: ...ROSCO A LeeBoy Company 6 67 Parts Book REF REV RB48 BROOM HYDRAULIC GROUP 29085 A ...
Страница 129: ...ROSCO A LeeBoy Company 6 71 Parts Book REF REV RB48 BROOM PARK BRAKE GROUP 21250 E ...
Страница 139: ...ROSCO A LeeBoy Company 6 81 Parts Book REF REV RB48 BROOM 26067 C OTHER OPTIONAL EQUIPMENT ENGINE SHUTDOWN ...
Страница 143: ...ROSCO A LeeBoy Company 6 85 Parts Book REF REV RB48 BROOM 21089 B OTHER OPTIONAL EQUIPMENT FRONT BRAKES ...
Страница 147: ...ROSCO A LeeBoy Company 6 89 Parts Book REF REV RB48 BROOM OTHER OPTIONAL EQUIPMENT TOW PACKAGE 29125 A ...
Страница 149: ...ROSCO A LeeBoy Company 6 91 Parts Book REF REV RB48 BROOM 29122 0 OTHER OPTIONAL EQUIPMENT KIT BRAKES STEERING TOW GRP ...
Страница 151: ...ROSCO A LeeBoy Company 6 93 Parts Book REF REV RB48 BROOM OTHER OPTIONAL EQUIPMENT WIRE HARNESS TOW LIGHTS 29127 0 ...
Страница 154: ...RB48 BROOM 28753 D REF REV OTHER OPTIONAL EQUIPMENT STRIKE OFF BLADE Parts Book 6 96 ROSCO A LeeBoy Company ...
Страница 155: ...RB48 BROOM REF REV 28753 D OTHER OPTIONAL EQUIPMENT STRIKE OFF BLADE ROSCO A LeeBoy Company 6 97 Parts Book ...
Страница 158: ...RB48 BROOM REF REV 29029 A OTHER OPTIONAL EQUIPMENT CURB BRUSH Parts Book 6 100 ROSCO A LeeBoy Company ...
Страница 159: ...RB48 BROOM REF REV 29029 A OTHER OPTIONAL EQUIPMENT CURB BRUSH ROSCO A LeeBoy Company 6 101 Parts Book ...
Страница 174: ...Alphabetical Index Parts Book 6 116 ROSCO A LeeBoy Company ...