Rock Hound 72B Manual

Models: 60B & 72B
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Operation & Maintenance
Manual
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
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 

FOREWORD
SAFETY
OPERATING
INSTRUCTIONS
ROCKHOUND
SERVICE
SPECIFICATION
Rockhound
i Operation & Maintenance Manual
FOREWORD iii......................................................
SAFETY vii.........................................................
OPERATING INSTRUCTIONS 1.......................................
ROCKHOUND SERVICE 13...........................................
SPECIFICATIONS 31.................................................
CONTENTS
REFERENCE INFORMATION
Write the correct information for YOUR Rockhound in the spaces below. Always
use these numbers when referring to your Rockhound.
Rockhound Serial Number ....

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FOREWORD
Rockhound
iii Operation & Maintenance Manual
FOREWORD
This Operation & Maintenance Manual was written to give the owner/operator
instructions on the safe operation and maintenance of the Rockhound. READ
AND UNDERSTAND THIS OPERATION & MAINTENANCE MANUAL
BEFORE OPERATING YOUR ROCKHOUND. If you have any questions, see
your Rockhound dealer.
SERIAL NUMBER LOCATION v.......................................
ROCKHOUND IDENTIFICATION AND MACHINE SIGNS (DECALS) vi....

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SERIAL NUMBER LOCATION
It is important to make the correct reference to the serial
number of the Rockhound when making repairs or
ordering parts. Early or later models (identifications made
by serial number) may use different parts, or it may be
necessary to use different procedures in doing a specific
service operation. The Rockhound serial number (Item 1)
[A] is located on the right rear of the bucket.
A
P--09628
1
Rockhound
v Operation & Maintenance Manual

P--09638
P--09637
ROCKHOUND PARTS IDENTIFICATION AND MACHINE SIGNS (DECALS)
CYLINDER
MOTOR
DRIVE
MOTOR
GUARD
ADJUSTMENT BOLT
6708061
6711402
PORT
BLOCK
STEPS BEARINGS
RAKE CHAIN
& TEETH
6701391
6594488
6533898 (2) 6595014 (2)
6708822 (2)
Rockhound
Operation & Maintenance Manualvi
PROP 65

SAFETY
Rockhound
vii Operation & Maintenance Manual
SAFETY
SAFETY INSTRUCTIONS vii..........................................

 


Operator must have instructions before
running the machine. Untrained
operators can cause injury or death.
For your safety, warnings are on the
machine and in the operation &
maintenance manual. Failure to
obey warnings can cause injury or
death.
This notice identifies procedures
which must be followed to avoid
damage to the machine.
W--2044--1285 I--2019--0284
B--10731
W--2001--1285
Check the rules and regulations at your location. The rules may include an employer’s work safety requirements.
Regulations may identify a hazard such as buried cable.
HAVE TRAINING WITH ACTUAL OPERATION
•Operator training must consist of a demonstration and verbal instruction. The training is done by the dealer when
or before the Rockhound Rake is delivered.
•The new operator must start in an area without bystanders and use all the controls until he can operate the machine
safely under all conditions of his work area.
KNOW THE WORK CONDITIONS
•The operator must know any prohibited uses or work areas for the machine.
USE SAFETY RULES
•Check that the Rockhound attachment is securely fastened to the machine (loader, tractor).
•Make sure all the controls (levers and pedals) are in the NEUTRAL position before starting the skid steer loader or
tractor.
•Operate the Rockhound Rake only from the operator’s seat.
•Keep your feet on the pedals (or floor plates), seat belt fastened snugly and seat bar lowered (if equipped) when
operating the Rockhound attachment.
•When learning to operate the Rockhound Rake, do it at a slow rate in an area clear of bystanders.
•DO NOT permit personnel to be in the work area when operating the Rockhound Rake.
•Before leaving the operator’s seat, always lower Rockhound Rake, engage the brake and stop the engine.
•DO NOT make any adjustments or repairs on the Rockhound Rake while the engine is running.
•Never operate the Rockhound attachment in a lifted position. Work only on the surface that the machine is standing
on.
•The Rockhound Rake must be used ONLY on machines with the correct load capacity. Refer to the sign on the
Rockhound attachment and on Page 4.
•Wear safety goggles while operating the Rockhound attachment.
•Do not modify equipment or add attachments that are not approved by the manufacturer.
SAFET
Y
INSTRUCTIONS
SAFETY IS THE OPERATOR’S RESPONSIBILITY
A QUALIFIED OPERATOR* MUST DO THE FOLLOWING:
*For an operator to be qualified, he must not use drugs or alcoholic drinks which impair his alertness or coordination while
working. An operator who is taking prescription drugs must get medical advice to determine if he can safely operate a
machine.
UNDERSTAND THE WRITTEN INSTRUCTIONS, RULES AND REGULATIONS
Rockhound
ix Operation & Maintenance Manual

X
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PROPOSITION 65 WARNING
•California's Proposition 65 entitles California consumers to special warnings for products that contain
chemicals known to the state of California to cause cancer if those products expose consumers to such
chemicals above certain threshold levels.

OPERATING
INSTRUCTIONS
Operation & Maintenance Manual
Rockhound
-- 1 --
MOUNTING THE ROCKHOUND --
3--POINT HITCH (CATEGORY 1) EQUIPPED 5........................
Closed Center Hydraulic System 6....................................
Hydraulic Installation 6..............................................
Open Center Hydraulic System 7.....................................
OPERATING THE ROCKHOUND --
3--POINT HITCH (CATEGORY 1) EQUIPPED 8........................
Bucket Dump Adjustment 10.........................................
Checking Rockhound Operation 8.....................................
Dumping The Bucket 9..............................................
Operating The Rockhound 9.........................................
OPERATING THE ROCKHOUND (SKID STEER LOADERS) 3............
Dumping The Rockhound 4..........................................
Recommended Raking Procedure 3...................................
SETTING UP (BEFORE FIRST OPERATION) 3.........................
TRANSPORTING THE ROCKHOUND
Chaining The Rockhound Onto The Transport Vehicle 11................
Lifting The Rockhound 11............................................
Loading The Rockhound Onto The Transport Vehicle 12.................
OPERATING INSTRUCTIONS

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READ ALL MACHINE SIGNS (DECALS) AND
INSTRUCTIONS CAREFULLY
SETTING UP (BEFORE FIRST OPERATION)
The Rockhound is delivered completely assembled.
Supply hoses and couplers must be ordered separately.
Check all nuts and bolts for correct torque.
Check for shipping damage. If damaged, do not use the
attachment until parts have been replaced or repaired.
Check that all hydraulic hoses and fittings are tight.
Check that all warning signs (decals) and safety treads
are on the attachment and in their correct location.
Replace any damaged signs or safety treads. (See Page
vi.)
Control ground penetration by removing the runner bolts
(Item 1) [B] and reposition the runners in any of the
mounting holes (Item 1) [C] needed.
NOTE: If the ground is extremely compacted, use an
attachment such as a tiller or scarifier to
loosen the ground at least 4 inches (102 mm)
in depth.
Recommended Raking Procedure
With the operator in the seat, seat belt fastened and seat
bar lowered, start the engine.
Tilt the rake attachment back with the loader tilt cylinder
and move the rake attachment to the starting point.
Tilt the rake attachment forward until the runners (Item 1)
[A] are touching the ground.
Engage the auxiliary hydraulics. (Refer to your machines
Operator’s Manual for the control functions.)
Lower the rake attachment to the ground and engage the
float. While operating, drive backwards at a slow rate.
Drive the machine to the Rockhound and align the
machine to the frame for connection. Stop the engine, exit
the machine, and secure the Rockhound mounting frame
to the machine.
OPERATING THE ROCKHOUND (SKID STEER
LOADERS)
Refer to Daily Inspection on Page 15 before using the
Rockhound attachment.
Remove large branches and stones (6 inches [150 mm]
diameter or larger) before raking an area.
Securely latch the attachment to the machine.
The attachment can come off during operation
if incorrectly latched.
AVOID INJURY OR DEATH
W--2260--0297
A
P--09639
1
C
P--09654
11
Bystanders must stay at least 9 ft. (3 m) away
from the rake when operating.
AVOID INJURY OR DEATH
W--2193--0595
DO NOT leave the loader seat while the engine
is running. W--2239--0496
Operation & Maintenance Manual
Rockhound
-- 3 --
B
P--09653
11

C
MC--02318
OPERATING THE ROCKHOUND (SKID STEER
LOADERS) (Cont’d)
NOTE: Some Loader/Rockhound combinations
have a lift restriction. See the decal below [C]
mounted on the attachment for precautions.
Dumping the Rockhound
When the material begins to bounce out of the bucket and
up against the screen, the bucket is full.
Lift the Rockhound slightly off the ground, carry the load
low, and drive to the dump site.
Move the control to retract the cylinder and open the
Rockhound [A].
Raise the Rockhound and tilt it forward until all the debris
is removed from the bucket [B].
Extend the cylinder to close the Rockhound. Tilt the
bucket back until the Rockhound is level with the ground.
Return to the landscaping site, lower the Rockhound to
the ground, and continue raking.
NOTE: Refer to your machines Operation &
Maintenance Manual for the hydraulic
connections and the correct function of the
controls.
Use the tilt control cylinder to tilt the Rockhound up or
down as needed during raking.
NOTE: Soil conditions may require multiple passes.
Recommended Raking Procedure (Cont’d)
A
P--09640
Rockhound
--4-- Operation & Maintenance Manual
B
P--09641

Install a supply hose from the tractor control valve to the
rockhound control valve.
Connect a return hose to the rockhound control valve and
route the hose to reservoir.
Connect the dump cylinder hoses (Item 3) [B] to the
rockhound control valve.
Install the correct length auxiliary hoses to the port block
on the rockhound. Route the hoses to the tractor and
connect the quick couplers (Item 4) [B] to the rockhound
control valve.
Install the top link cylinder (Item 1) [B] with the base end
fastened to the tractor.
Align the rod end of the cylinder with the upper link mount
(Item 2) [B] on the Rockhound.
Install a pin in the upper link cylinder and link mount.
MOUNTING THE ROCKHOUND -- 3--Point Hitch
(Category 1) Equipped
Drive the tractor backwards to the Rockhound
Attachment equipped with the 3--Point Hitch mounting
bracket.
Align the two lower links of the 3--Point Hitch with the
lower link mounts (Item 1) [A] on the mounting bracket.
Install a pin (Item 2) [A] in each lower link and link
mounting bracket to fasten the 3--Point Hitch links to the
Rockhound.
NOTE: See your dealer to obtain two 7/8 inch x 3--3/4
inch pins with pin clips.
NOTE: Obtain one 3/4 inch x 3--3/4 inch pin with pin
clips locally.
Install the rockhound control valve in a position which will
allow access for the operator.
NOTE: Obtain the correct hoses and quick couplers
locally. Always fully engage quick couplers.
If the couplers do not fully engage, check the
coupler sizes. Do not force the quick
couplers together.
NOTE: See Pages 6 and 7 to determine the type of
hydraulic system your tractor is equipped
with. Use the illustraction for correct
hydraulic routing.
NOTE: The top link cylinder is available in a 12 inch
(305 mm) and 14 inch (355 mm) lengths as
follows:
Cylinder Rod Extended Retracted
Travel Length Length
12 inch 34.25 inches 22.25 inches
(308 mm) (870 mm) (565 mm)
14 inch 38.25 inches 24.25 inches
(355 mm) (972 mm) (616 mm)
A
B--14893
1
2
Operation & Maintenance Manual
Rockhound
-- 5 --
B
B--14897
2
1
4
3

MOUNTING THE ROCKHOUND -- 3--Point Hitch
(Category 1) Equipped (Cont’d)
Hydraulic Installation
Two auxiliary hydraulic controls are needed for
installation using a 3--Point Hitch. One auxiliary drives the
hydraulic motor and the rake chain; the other auxiliary is
connected to the top link cylinder at the upper mount and
is used for dumping the bucket.
A two--section control valve and hydraulic cylinder are
available from your dealer if needed. Your dealer can also
assist you in correct hydraulic installation.
The following two procedures show typical hydraulic
installations on a tractor which has a front end loader and
no other auxiliary couplers.
Closed Center Hydraulic System
A closed center system does not allow pressurized flow
through the loader/tractor control valve. In this type of
system, it is necessary to put a Tee fitting in the hydraulic
link between the pump outlet and the control valve inlet to
provide flow to the Rockhound control valve [A].
The control valve should be a closed--center valve. The
valve available from your Rockhound dealer can be easily
converted to closed--center.
A
E--02351
Reservoir
Tractor
Pump Pressure Line
Tractor
Control Valve
‘‘Tee’’
Fitting
Suction
Line
Return
Line
Rake
Cylinder
Rockhound
Motor
Port Block
Top Link
Control
Valve
Dump
Cylinder
Rockhound
--6-- Operation & Maintenance Manual

A
E--02352
Reservoir
Tractor
Pump
Pressure
Line
Tractor
Control Valve
Suction
Line
Return
Line
Rake
Cylinder
Rockhound
Motor
Port Block
Top Link
Control
Valve
Dump
Cylinder
1
MOUNTING THE ROCKHOUND -- 3--Point Hitch
(Category 1) Equipped (Cont’d)
Open Center Hydraulic System
An open center system allows pressurized flow through
the loader control valve. In this type of system the
rockhound control valve is pressurized from the power
beyond port of the tractor control valve (Item 1) [A].
This will allow rockhound to be lifted or adjusted for depth
of raking, while the motor continues running.
Operation & Maintenance Manual
Rockhound
-- 7 --

OPERATING THE ROCKHOUND -- 3--Point Hitch
(Category 1) Equipped
Ground Preparation
Thoroughly inspect the ground before raking.
Remove large branches and stones which are 6 inches
(150 mm) or larger.
Checking Rockhound Operation
See your tractor Operation & Maintenance Manual for
safe operating procedures for your tractor/loader.
Before operating the rake attachment, see Daily
Inspection on Page 15.
Bystanders must stay at least 9 ft. (3 m) away
from the rake when operating.
AVOID INJURY OR DEATH
W--2193--0595
DO NOT leave the machine while the engine is
running.
AVOID INJURY OR DEATH
W--2259--0297
Raise the rake off the ground [A].
Engage the control valve for the rake chain.
NOTE: The rake chain should move in the direction
of the arrow [A].
Run the rake and check for excessive noise. If there is
excessive noise, locate the cause and repair or replace
parts as needed.
When the rake chain moves freely, lower the rake to the
ground [B]. Stop the loader engine.
A
B--14896
Rockhound
--8-- Operation & Maintenance Manual
B
B--14895