PDF Operator Manual Bobcat 18 24 Hydraulic Planer - 2 MB
Learn to safely and effectively operate your Bobcat 18-inch and 24-inch hydraulic planer attachments with this official operation and maintenance manual.
It details proper attachment procedures, operational controls, and crucial daily maintenance checks.
Following these guidelines will maximize the performance of your planer and extend its service life.
This is a must-read for any operator using this powerful attachment.
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Operation & Maintenance Manual
Planer
(18 Hyd Planer) S/N 231611101 & Above
(18 In) S/N 341000101 & Above
(24 Hyd Planer) S/N 231711101 & Above
(24 In) S/N 721700101 & Above
Dealer Copy -- Not for Resale
6900636 (9-09) Revised (5-11) (5) Printed in U.S.A. © Bobcat Company 2011
1 of 70
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FEATURES AND ACCESORIES
Standard Items
The planer is equipped with the following Standard items:
• Oscillating Housing Of ± 15°
• Rear Frame Wheel
Options And Accessories
• Quick-Tach Water Kit
• Planer Spray Nozzle
• Planer Guide Rod
9 Planer Operation & Maintenance Manual
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OPERATING INSTRUCTIONS
DAILY INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Attachment Mounting Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Bob-Tach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
OPERATING PROCEDURE WITH LOADERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Approved Loader Models And Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Entering And Exiting The Loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Hydraulic Quick Couplers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Electrical Harness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Control Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Operation With The Loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
LIFTING THE ATTACHMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
TRANSPORTING THE ATTACHMENT ON A TRAILER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Fastening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
TRANSPORTING THE ATTACHMENT AND MACHINE ON A TRAILER . . . . . . . . . . . . . . . . 45
Loading And Fastening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
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OPERATING PROCEDURE WITH LOADERS Figure 27
(CONT’D)
Installation (Cont'd)
Power Bob-Tach (Cont’d)
Figure 25
P-41500A
Push and hold the BOB-TACH “WEDGES DOWN” switch
(Item 2) [Figure 26] until the levers are fully engaged in
the locked position [Figure 27] (wedges fully extended
through the attachment mounting frame holes).
Figure 28
P-41505
Tilt the Bob-Tach backward until the attachment is
slightly off the ground [Figure 25]. This will cause the
attachment mounting frame to fit up against the front of
the Bob-Tach.
Figure 26
Frame Contact Points
Loader Switch
P-79781
1
Both levers must contact the frame as shown when
locked [Figure 28].
If both levers do not engage in the locked position, see
your Bobcat dealer for maintenance.
2
B-15993A
WARNING
AVOID INJURY OR DEATH
NOTE: The Power Bob-Tach system has continuous The Bob-Tach wedges must extend through the
pressurized hydraulic oil to keep the wedges holes in the attachment mounting frame. Levers
in the engaged position and prevent must be fully down and locked. Failure to secure
attachment disengagement. Because the wedges can allow attachment to come off.
wedges can slowly lower, the operator may W-2715-0208
need to reactivate the switch (BOB-TACH
“WEDGES UP”) to be sure both wedges are
fully raised before installing the attachment.
Push and hold the BOB-TACH “WEDGES UP” switch
(Item 1) [Figure 26] until the levers are fully raised
(wedges fully raised).
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OPERATING PROCEDURE WITH LOADERS Planing A General Area
(CONT’D)
Figure 49
Operation With The Loader (Cont’d)
Cutting Procedure (Cont’d)
Figure 48
1
2
P15667
Mill your first pass at the desired depth. Now return to the
P15626 original starting point, align the ski so it just overlaps the
edge of the previous cut, do not adjust the ski (Item 1)
[Figure 49]. This will keep the cutting depth the same as
The planer drum rotates in the direction of the arrow
the first pass.
[Figure 48].
Adjust the ski on the milled surface (Item 2) [Figure 49]
NOTE: Right ski and right side plate removed for
so the planer housing remains level providing a level cut.
clarity.
Blending Different Heights Of Work Surfaces
Drive forward into the material that is to be planed. The
planer undercuts the material, breaking it out in an
Figure 50
upward direction.
Faster loader travel speeds will create a rougher surface.
Adjust travel speed and cutting depth until the desired
cutting results are obtained.
Cutting Concrete: The recommended cutting depth per
pass should be 12,7 mm (0.5 in) or less. To achieve 1
desired cutting depth make multiple passes.
Cutting Asphalt: Cutting at full depth is possible. The
performance of the planer cutting the asphalt will best
determine the cutting depth. The age of the asphalt, the
size of the aggregate and the temperature of the asphalt
will all affect how deep of a cut that can be made, and at
P15626
what travel speed.
To blend two different heights of asphalt or concrete
surfaces, remove every other tooth (Item 1) [Figure 50]
from the outside row, in one line.
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TROUBLESHOOTING
Chart
Instructions are necessary before operating or servicing machine. Read and
understand the Operation & Maintenance Manual, Operator’s Handbook and
signs (decals) on machine. Follow warnings and instructions in the manuals
WARNING when making repairs, adjustments or servicing. Check for correct function
after adjustments, repairs or service. Untrained operators and failure to follow
instructions can cause injury or death. W-2003-0903
If the planer is not working correctly, check the hydraulic system of the machine thoroughly before making any repairs on
the planer. Planer problems can be affected by a hydraulic system that is not operating to specifications. Connect a flow
meter to the machine to check the hydraulic pump output, relief valve setting and tube lines to check flow and pressure.
(See the machine’s Service Manual for the correct procedure to connect the flow meter.)
Use the following troubleshooting chart to locate and correct problems which most often occur with the attachment.
PROBLEM CAUSE CORRECTION
Planer cut is inadequate. Carbide bits worn or missing. Replace the carbide bits.
Noisy motor (with load). Vibration; loose bolts. Check torque.
External oil leaks. Motor case pressure too high. Check the case drain line.
Defective assembly. Check case drain line for blockage.
Damaged O-rings. Replace O-rings as needed.
Planer will not side shift. Damage to wiring or electrical See your Bobcat dealer.
connectors.
Not enough hydraulic pressure. Test loader hydraulics for flow and pressure.
Planer housing seized or rusted in Remove rust or material interference.
place.
Drum motor with load does not turn. Hydraulic pressure is low. Check relief valve setting.
Internal hydraulic leaks. Check motor.
Noisy motor (with no load). Humming; worn bearings. Replace bearings.
Loaded motor does not turn at normal Not enough hydraulic flow. Check pump flow and rotation speed. Check Hi Flow
speed. diverter valve. Make sure Hi Flow is ON.
Internal leaks. Check cylinder block and valve block assembly.
Check motor.
Drum motor does not rotate. Front auxiliary hydraulics not engaged. Engage the loader front auxiliary.
Large couplers are reversed. Switch couplers.
Excessive hydraulic leakage. Check hoses and motor block.
Hydraulic leaks. Check cylinder block and valve block assembly.
No hydraulic flow. Check pump drive and pump inlet.
No hydraulic pressure. Valves damaged or corroded.
Planer does not mill to correct depth. Carbide bits worn depth. Replace the carbide bits.
Decals misplaced or missing. Replace with new depth decals.
Ski pivot bushings worn or missing. Install new ski pivot bushings.
Ski worn. Replace ski.
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SPECIFICATIONS
(18 HYD PLANER, 18 IN., 24 HYD PLANER & 24 IN.) PLANER SPECIFICATIONS . . . . . . . 61
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
59 Planer Operation & Maintenance Manual