Degelman R570P Programming manual

OPERATOR & PARTS
MANUAL
DEGELMAN INDUSTRIES LTD.
BOX 830-272 INDUSTRIAL DRIVE,
REGINA, SK, CANADA, S4P 3B1
FAX [phone] PH 306.543.4447
1.800.667.3545 DEGELMAN.COM
142636 v1.4

DEGELMAN INDUSTRIES LTD.
BOX 830-272 INDUSTRIAL DRIVE,
REGINA, SK, CANADA, S4P 3B1
FAX [phone] PH 306.543.4447
1.800.667.3545 DEGELMAN.COM
IMPORTANT:
READ MANUAL
TABLE OF CONTENTS - OPERATORS SECTION
Introduction 1
Safety 2
Overview 4
Assembly 5
Preparation 6
Tractor Preparation 6
Hook-up / Unhooking 6
Pre-Operation Checklist 8
Operation 9
Tr a n sp o r t i n g 11
Storage / Safety Decals 12
Service & Maintenance 13
Service Intervals 15
Adjustments / Repair 16-19
Troubleshooting 22
PARTS SECTION
Hitch Components 24
Hopper, Grill, Mainframe Components 25
Wheel Components 26
Hydraulics and Cylinder Components 27
Warranty 28

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OPERATOR ORIENTATION - The directions left, right, front and rear, as mentioned throughout the manual,
are as seen from the tractor drivers’ seat and facing in the direction of travel.
Introduction
Left Side
Rear
Front
Right Side
CONGRATULATIONS Congratulations on your choice of a Degelman Prong Rock Picker to complement
your farming operation. It has been designed and manufactured to meet the needs of a discerning
Agricultural market for the efficient picking of rocks. Use this manual as your first source of information
about this machine. If you follow the instructions given in this manual, your machine will work well for
many years.
Safe, efficient and trouble free operation of your Degelman Rock Picker requires that you and anyone
else who will be operating or maintaining the Rock Picker, read and understand the Safety, Operation,
Maintenance and Troubleshooting information contained within this Manual.
Keep this manual handy for frequent reference and to pass on to new operators or owners. Call your
Degelman Dealer if you need assistance, information or additional copies of the manual.

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The Safety Alert Symbol identifies important safety
messages applied to the Rock Picker and in this
manual. When you see this symbol, be alert to the
possibility of injury or death. Follow the
instructions provided on the safety messages.
The Safety Alert Symbol means:
ATTENTION!
BECOME ALERT!
YOUR SAFETY IS INVOLVED!
DANGER: Indicates an imminently hazardous situation
that, if not avoided, WILL result in death or serious injury
if proper precautions are not taken.
WARNING: Indicates a potentially hazardous
situation that, if not avoided, COULD result in death or
serious injury if proper precautions are not taken.
CAUTION: Indicates a potentially hazardous situation
that, if not avoided, MAY result in minor or moderate
injury if proper practices are not taken, or, serves as a
reminder to follow appropriate safety practices.
Why is SAFETY important to YOU?
3 BIG Reasons:
•Accidents Can Disable and Kill
•Accidents Are Costly
•Accidents Can Be Avoided
Note the use of the Signal Words: DANGER, WARNING, and CAUTION with the safety messages.
The appropriate Signal Word has been selected using the following guidelines:
SAFETY ALERT SYMBOL
SIGNAL WORDS
Safety
CAUTION
DANGER
WARNING

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1. Read and understand the Operator’s
Manual and all safety signs before
operating, maintaining or adjusting
the Rock Picker.
2. Install and properly secure all shields and
guards before operating. Use hitch pin with a
mechanical locking device.
3. Have a first-aid kit available for use
should the need arise and know
how to use it.
4. Have a fire extinguisher available
for use should the need arise and
know how to use it.
5. Wear appropriate protective gear. This list
includes but is not limited to:
• A hard hat
• Protective shoes with slip resistant soles
• Protective glasses or goggles
• Heavy gloves
• Wet weather gear
• Hearing protection
• Respirator or filter mask
6. Clear the area of people, especially small
children, and remove foreign objects from the
machine before starting and operating.
7. Do not allow riders.
8. Stop tractor engine, set park brake, and
remove ignition key before servicing, adjusting,
repairing or unplugging.
9. Review safety related items with all operators
annually.
YOU are responsible for the safe operation and
maintenance of your Degelman Rock Picker. YOU
must ensure that you and anyone else who is going
to operate, maintain or work around the Rock Picker
be familiar with the operating and maintenance
procedures and related SAFETY information
contained in this manual.
This manual will take you step-by-step through
your working day and alerts you to all good safety
practices that should be adhered to while operating
this equipment.
Remember, YOU are the key to safety. Good safety
practices not only protect you but also the people
around you. Make these practices a working
part of your safety program. Be certain that
EVERYONE operating this equipment is familiar
with the recommended operating and maintenance
procedures and follows all the safety precautions.
Most accidents can be prevented. Do not risk injury
or death by ignoring good safety practices.
• Rock Picker owners must give operating
instructions to operators or employees before
allowing them to operate the Rock Picker,
and at least annually thereafter.
• The most important safety device on this
equipment is a SAFE operator. It is the
operator’s responsibility to read and
understand ALL Safety and Operating
instructions in the manual and to follow
these. All accidents can be avoided.
• A person who has not read and understood
all operating and safety instructions is
not qualified to operate the machine. An
untrained operator exposes himself and
bystanders to possible serious injury or
death.
• Do not modify the equipment in any way.
Unauthorized modification may impair the
function and/or safety and could affect the
life of the equipment.
• Think SAFETY! Work SAFELY!
Safety
SAFETY GENERAL SAFETY

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Overview
It is the owner’s or operator’s responsibility
to read this manual carefully to learn how to
operate the machine safely and how to set it to
provide maximum efficiency. Safety is everyone’s
business. By following safe operating practices, a
safe environment is provided for the operator and
bystanders.
The manual will take you step-by-step through
your working day. By following the operating
instructions in conjunction with a good
maintenance program, your machine will provide
many years of trouble-free service.
TO THE NEW OPERATOR OR OWNER
The Degelman Prong Type Rock Picker is a pull
behind machine, capable of spot picking and
boulder removal. The double-acting hydraulic
cylinders perform two jobs: they lift and control the
picking grill, and also lift the hopper to dump the
rocks and boulders.
PRINCIPLES OF OPERATION
21
3
4
4
5
6
56
Rock Picker Components
1. Hitch Pole
2. Grill
3. Hopper Box
4. Lift/Dump Cylinders
5. Transport Locks
(on both LH & RH sides)
6. Grill Depth Adjustment
(on both LH & RH sides)

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b) Using the 3/8” hose clamps, 5/16”
x 2-1/2” bolt, 5/16” flat washers, lock
washers and nuts, secure hydraulic hoses
in place and tighten. Reference Figure #3.
4 - Installing Wheel, Hub, and Spindle Assemblies
Before installing the
wheel, hub, and
spindle assemblies
- block up the prong
picker frame to a
height of 14 inches
evenly, as shown in
Figure #4. Other
alternate methods of
lifting the machine may
be used, as long as they provide safe operations.
Check the hub spindles for transportation damage and/
or paint excess and correct as required. Clean the inside
of the frame spindle tubes and loosen/prepare the
Spindle Hardware. Reference Figure #5.
Fully insert the hub spindles into the frame spindle tubes
and tighten the Spindle Hardware.
Then, install a rim and tire assembly to each spindle hub
using six 9/16” Wheel Nuts (Previously used: 9/16” x
1-1/16” wheel bolts).
Tighten the wheel nuts (bolts) to 120 Ft-lb torque.
Note: Figure #5 shows the left hand side hub and
spindle assembly installation. The right hand side is
symmetrical.
Assembly
As received, place the machine on level ground on
top of two 4”x 4” wooden planks layed lengthwise.
1 - Installing the Hitch Pole
The hitch pole may be attached to the prong
picker frame in two different positions:
Offset To The Left Hand Side
- Required for field operation.
Offset To The Center
- Recommended when the machine is to be
hauled for long distance or on the highway.
Install hitch pole to picker frame front mounting
plate, using some wooden blocks to maintain an
appropriate height.
Make the attaching holes coincide and install nine
5/8” x 1-3/4” Hex bolts, Flat washers and Lock
nuts. While installing the upper centre bolt, attach
the hose clamp bracket, as shown in Figure #1.
2 - Installing the Telescopic Jack
In the fully retracted position, attach the telescopic
jack to the mounting socket on the left side of
the hitch pole and secure with the chained pin.
Reference Figure #1. Then, extend the jack stand to
touch the ground.
Note: Once the rock picker is ready for operation
and hitched to the tractor, raise the jack, remove
pin, rotate the jack assembly to a horizontal position
and reinstall the pin to secure the jack assembly to
the hitch pole.
3 - Securing Hydraulic Hoses to Hitch Pole
a) Cut off plastic
ties for shipping
protection and
unfold hoses
toward the hitch
pole clevis.
ASSEMBLY PROCEDURE
Figure #3
Hitch Pole
Rock Picker Frame
Hose Clamp Bracket
5/8” Flat Washer
5/8” Lock Nut
5/8” x 1-3/4” Bolt
Telescopic Jack
Figure #1
Figure #5
LH Side of
Frame
Rear
Wheel & Tire
Assembly
Lift Frame
Here
Hub/Spindle
Assembly
Spindle Hardware
Figure #2
Figure #4
14”
Wheel
Nuts
Set Screw
& Nut (2)
Bolt,
Washers,
& Locknut
-or-

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Preparation
The Rock Picker should always be parked on a level,
dry area that is free of debris and foreign objects.
Follow this procedure when attaching:
1. Clear the area of bystanders. Remove foreign
objects from machine and working area.
2. Start tractor and slowly back up to the hitch point.
3. Stop the tractor engine, place all controls in neutral,
set park brake and remove ignition key before
dismounting.
4. Use the hitch pole jack to raise or lower the pole to
align with the drawbar. Ensure that the rock picker
hitch pole is parallel to the ground. Refer to the
“Hitch Clevis Adjustments” section if needed.
5. Install the drawbar pin (with a mechanical retainer,
such as a Klik pin) and safety chain (between the
tractor drawbar and the hitch pole). Raise the hitch
jack and rotate it to its stowed position.
6. Connect the hydraulics.
NOTE: Connect the hoses that operate the grill lifting
cylinders to the hydraulic control operated nearest
to the operator’s seat, such that when the lever is
moved forward, the grill will lower.
7. Check that the transport pins are removed before
operation. If they are still installed, proceed to
remove them. Refer to the “Removing Transport Pins”
section if needed.
8. When unhooking from the tractor, reverse the above
procedure.
HOOK-UP / UNHOOKING
WHEN CONNECTING HYDRAULICS:
- Use a clean cloth or paper towel to clean the hose
couplers ends and also the area around the couplers
on the tractor.
- Remove the plastic plugs from the couplers (if
applicable) and insert the male ends.
- If the direction of motion is wrong after testing the
controls, reverse the couplers.
Bleeding Hydraulics: Occasionally air may become
trapped in the hydraulic circuit, making it necessary
to “bleed” the circuit. To perform this operation cycle
the hydraulics several times or, especially on older
tractors, temporarily loosen an easily accessible hose
fitting enough to allow any trapped air to escape while
cycling the hydraulics. Retighten fitting.
Follow this procedure when selecting and preparing
a tractor for use with the machine:
1. Use only a tractor of sufficient power and weight to
adequately handle the machine.
2. It is not recommended to use a tractor that is
equipped with duals. The right outer tire will drive
over the rocks, push them into the ground and make
them difficult to pick up with the grill.
3. It is recommended to pin the tractor draw bar totally
offset to the right hand side, to allow the picking grill
to clear the tractor wheels.
4. Use only a drawbar pin with provisions for a
mechanical retainer such as a Klik pin. Always
install the retainer.
5. Always attach a safety chain between the tractor
and the machine to prevent unexpected separation.
TRACTOR PREPARATION
WARNING:Use extreme care
when working around a high
pressure hydraulic system. Make
sure all connections are tight
and all components are in good
repair. Wear hand and eye
protection when searching for suspected leaks.

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REMOVING THE TRANSPORT PINS
Preparation
NOTE:Make sure the rock picker tires have the
specified air pressure (45 psi) before adjusting.
The hitch pole should always be set to be parallel to
the ground when attached to the tractor. To set this
angle, follow this procedure:
1. Clear the area of bystanders, especially small
children.
2. Install the drawbar pin to attach the clevis to the
tractor.
3. Use the hitch jack to lower the hitch and transfer
the weight off the drawbar.
4. Step back and check to see if the pole is parallel
to the ground.
5. If it isn’t, use the jack to raise the pole and
centre the clevis to the drawbar.
6. Remove the clevis mounting pin.
7. Move the clevis up or down as required.
8. Install the clevis mounting pin and retainer.
9. Lower the hitch and check the pole angle again.
IMPORTANT:The machine operates at
maximum efficiency when the hitch pole is
parallel to the ground.
HITCH CLEVIS ADJUSTMENTS
Once the
hydraulic system
of the rock picker
is operable, raise
the picker grill
assembly (1) until
the slanted edge
is in a horizontal
position. Then
block-up the
grill as shown in
Figure #6.
Operate the
hydraulic
control lever
to produce a
slight downward
movement of the grill hydraulic lift arms (2), such that the
transport pins (3) may be relieved from load applied by
the grill lift plate (4). Reference Figure #6. Remove and
keep transport pins (3) to use whenever required.
Raise the
hydraulic
lift arms (2)
again, until the
hydraulic lift
arm stop blocks
(5) contact the
grill lift plate
(4), as shown
in Figure #7.
Remove the
wooden blocks
from under
the grill and
lower the picker
grill (1) to the
ground.
Figure #6
Figure #7
Parallel to ground

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Preparation
IMPORTANT: It is extremely important to follow
all of the Break-In procedures especially those listed
in the “Before using” section below to avoid damage:
Although there are no operational restrictions on
the Rock Picker when it is new, there are some
mechanical checks that must be done to ensure
the long term integrity of the unit. When using the
machine for the first time, follow this procedure:
Before using:
1. Read Safety Info. & Operator’s Manual.
2. Complete steps in “Pre-Operation Checklist”.
3. Lubricate all grease points.
4. Check all bolt tightness.
After operating for 2 hours:
1. Re-torque wheel nuts/bolts.
2. Check all hardware. Tighten as required.
3. Check all hydraulic system connections.
Tighten if any are leaking.
4. Tighten chain.
After operating for 8 hours:
1. Repeat Steps for 2 hour Break-In above.
2. Go to the service schedule as outlined in the
“Service & Maintenance” section.
BREAK-IN
PRE-OPERATION CHECKLIST
IMPORTANT: Follow the pre-operational checklist
for both your personal safety and for maintaining the
proper mechanical condition of the machine.
Before operating this machine, the following
areas should be checked off:
1. Only operate Rock Picker using a tractor of
appropriate size, power and weight.
2. Pin the tractor draw bar totally offset to the right
hand side, to allow the picking grill to clear the
tractor wheels.
3. Use a proper drawbar pin with provisions for a
mechanical retainer to hook the rock picker hitch
pole clevis to the tractor draw bar. Make sure
that a retainer such as a Klik pin is installed.
4. Ensure that the safety chain is installed on the
hitch and the jack is placed in its stowed position.
5. Check tires and ensure that they are inflated to
the specified pressure: 45 psi (310 kPa).
6. Inspect all moving and rotating parts. Remove
any debris that has become entangled in them.
7. Lubricate the machine and inspect all hydraulic
lines, hoses, fittings and couplers for tightness/
leaks as outlined in the “Service
& Maintenance Section”. Follow
proper safety procedures.
8. Check oil level in the tractor
hydraulic reservoir. Top up as required.
9. Check that the transport pins are removed
before operation. If they are still installed, proceed
to remove them. Refer to the “Removing Transport
Pins” section if needed.
10. Ensure grill tines will not be “digging” when
picking. Make sure the grill depth stops have been
properly set to prevent this. Refer to the “Grill
Depth Control Stop Adjustment” section.

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Every operator should read this manual and be
instructed in safe operating procedures. An untrained
operator is not qualified to operate this machine and
could place themselves or bystanders in danger.
OPERATOR’S RESPONSIBILITY
Operation
OPERATING SAFETY
Before Operating:
• Read and understand the Operator’s Manual and
all safety signs before using.
• Keep hands, feet, hair and clothing away from all
moving and/or rotating parts.
• Do not allow riders on the Rock Picker or tractor
during operation or transporting.
• Keep all shields and guards in place when
operating.
• Clear the area of all bystanders, especially children,
before starting.
• Do not operate machine or raise hopper box on
steep side hills or slopes.
• If the ground surface is bumpy, do not load the
machine too heavy and reduce travel speed.
• When performing the lifting and dumping
operations with the hopper box, do not allow
anybody to stand close by.
• Frequently check and retighten bolts to specified
torques shown in the “Service & Maintenance”
section.
• Also, review and be familiar with the other safety
sections such as Maintenance and Transport Safety
found in this manual.
GRILL DEPTH CONTROL STOP ADJUSTMENT
• Before attempting a final adjustment for the grill
depth control stop, it is very important to set the
hitch pole first, whether at the hitch pole clevis or at
the tractor drawbar, to get the hitch pole parallel to
the ground level.
• Make sure the rock picker tires have the specified
air pressure (45 psi) before adjusting.
• The grill depth final adjustment should be such
that the toe of the grill tines, would skim the ground
and at the same time, the heel of the grill tines
should be about 1/2” above the ground level.

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LOADING/DUMPING:
Loading: The machine can be loaded until
the hopper box is filled but do not overfill.
If hopper box is overfilled, rocks may roll
forward and fall in between the frame when
dumping.
Dumping: The hopper box is unloaded by fully
extending the cylinders.
NOTE: Be carefull if hopper box is overfilled!
If hopper box is overfilled, rocks may roll
forward and fall in between the frame when
dumping.
WARNING:Stay clear of the machine and
surrounding area when unloading. Keep
others away.
WARNING:Ensure there are no obstructions
below the grill area or the side cylinder lift
bracket areas when dumping.
• Be sure the machine is on level ground when
raising the hopper box to unload. Uneven
ground conditions can cause the box to tilt
and could be dangerous or result in damage
to the machine.
• Ensure there are no obstructions below
the grill/grate area or the side cylinder lift
bracket area when dumping. Obstructions
in these areas can cause extreme loading
on pins and brackets due to over-extension
of the cylinders and result in damage to the
machine.
Operation
FIELD OPERATIONS
Refer to these operational hints before starting:
- Begin rock picking operations and observe the
machine’s performance regarding the particular
field conditions before attempting any adjustments.
- Ensure grill tines are not “digging” when picking.
Make sure the grill depth stops have been properly
set to prevent this. (Refer to the Grill Depth Control
Stop Adjustment Section)
- On new machines, it is advisable to make
a complete check after one or two hours of
operation. Verify that all fasteners are tight enough,
especially wheel bolts and set screws. Also, recheck
that adjustments are maintained as set.
- Remember that rock pickers are designed and built
to remove rocks and other debris from the ground
surface, but not to pull out buried material.
- The best rock picking conditions are when the rocks
lay on the ground surface and it is reasonably firm
and dry.
- If the ground surface is bumpy, do not load the
machine too heavy and reduce machine’s travel
speed.
- The hitch pole clevis is normally located in the hitch
pole bracket centre position. This setting allows
the rock picker frame and pole assembly to ride
parallel to the ground. However, if the soil is found
to be rather soft, adjust the clevis casting at the
hitch pole brackets, such that the frame and pole
assembly would be levelled to the ground.
- For information regarding component adjustments,
make reference to the adjustment procedures
section.
Retract / Close
Cylinders to
Lift Grill
Extend Cylinders
to Lift / Dump
Hopper

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Transporting
Follow this procedure when preparing to transport:
1. Clear the area of bystanders, especially small
children, before converting into transport
configuration.
2. Always install the transport pins. Raise the
grill to its highest position and install the red
transport pins into transport position and
secure. Lower the grill to rest on the red pins.
3. Rotate hitchpole jack out of the way and secure
with chained pin.
4. Reverse the hitch pole offset position towards
the machine’s center line, when transporting
the rock picker on roads or highways.
5. Clean the SMV, lights and reflectors.
6. Maintain a safe speed. Do not exceed 32 kph
(20 mph). Slow down when cornering and on
rough roads.
7. Slow down and pull off to the side of the road
when meeting other traffic.
8. Use hazard flashers on tractor unless
prohibited by law.
TRANSPORTING
RIDERS
TRANSPORT SAFETY
• Read and understand ALL the information in the
Operator’s Manual regarding procedures and
SAFETY when operating the Rock Picker in the
field/yard or on the road.
• Check with local authorities regarding machine
transport on public roads. Obey all applicable
laws and regulations.
• Always travel at a safe speed. Use
caution when making corners or
meeting traffic.
• Make sure the SMV (Slow Moving
Vehicle) emblem and all the lights and reflectors
that are required by the local highway and
transport authorities are in place, are clean
and can be seen clearly by all overtaking and
oncoming traffic.
• Keep to the right and yield the right-of-way to
allow faster traffic to pass. Drive on the road
shoulder, if permitted by law.
• Always use hazard warning flashers on tractor
when transporting unless prohibited by law.
• Always use a pin with provisions for a
mechanical retainer and a safety chain when
attaching to a tractor or towing vehicle.
• When transporting the rock picker on roads or
highways, reverse the hitch pole offset position
towards the machine’s center line.
• Ensure the red transport pins are in transport
position and the hitch pole is fully secured
before moving on a public road.
• Maintain a safe speed. Do not exceed 32 kph
(20 mph). Slow down when cornering and on
rough roads.

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Storage
After the season’s use, completely inspect all
major systems of the machine. Repair or replace
any worn or damaged components to prevent
unnecessary down time at the beginning of next
season.
Since the unit can be used in extremely adverse
conditions during the season, the machine should
be carefully prepared for storage to ensure that all
dirt, mud, debris and moisture has been removed.
Follow this procedure when preparing to store:
1. Wash the entire machine thoroughly using a
water hose or pressure washer to remove all
dirt, mud, debris or residue.
2. Inspect all moving or rotating parts to see
if anything has become entangled in them.
Remove the entangled material.
3. Lubricate all grease fittings to remove any
moisture in the bearings.
4. Inspect all hydraulic hoses, fittings, lines,
couplers and valves. Tighten any loose fittings.
Replace any hose that is badly cut, nicked or
abraded or is separating from the crimped end
of the fitting.
5. Touch up all paint nicks and scratches to
prevent rusting.
6. Oil the exposed rams on the hydraulic
cylinders to prevent rusting.
7. Select an area that is dry, level and free of
debris.
STORAGE
STORAGE SAFETY
• Store unit in an area away from human activity.
• Store Rock Picker only with grill and hopper
box lowered.
• Do not permit children to play around the
stored unit.
REPLACEMENT DECALS AND REFLECTORS
SAFETY DECALS
Some or all of the following safety decals may be
found at strategic locations on this machine. These
decals are installed with the purpose of alerting
everyone of potential danger or damage.
• Keep safety decals and signs clean and legible
at all times.
• Replace safety decals and signs that are missing
or have become illegible.
• Replaced parts that displayed a safety sign
should also display the current sign.
• Safety decals or signs are available from your
Dealer Parts Department. Safety decals will be
available upon request.
PART NO. DESCRIPTION QTY.
142255 Decal, Danger - Keep Safe Distance 3
142256 Decal, Caution - Remove Transport Pin 2
142220 Decal, Warning - Do Not Exceed 1
142008 Decal, Degelman - 6 x 25-3/4 1
142556 Decal, Red Reflector - 2 x 9 2
142557 Decal, Amber Reflector - 2 x 9 2
142650 Decal, Fluorescent Reflector - 2 x 9 2
142156 Decal, Slow Moving Vehicle 1
This Danger Decal (142255) is located on the hopper box
side panels as well as at the back panel.
The purpose of the decal is to prevent everyone from
being near the machine when in operation.
This Cautionary Decal (142256) is attached to the front
side of both grill hydraulic lift arms.
The purpose of the decal is to remind the operator to
remove the transport pins after the machine is transported
to the field, and before the grill is lowered to pick rocks.

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Service & Maintenance
MAINTENANCE SAFETY
• Review the Operator’s Manual and all safety
items before working with, maintaining or
operating the Rock Picker.
• Lower grill and hopper box, stop the tractor
engine, place all controls in neutral, set
park brake, and remove ignition key before
servicing, adjusting, repairing or unplugging.
• Keep hands, feet, clothing and hair away from
all moving and/or rotating parts.
• Clear the area of bystanders, especially
children, when carrying out any maintenance
and repairs or making adjustments.
• Place safety stands or large blocks under the
frame before removing tires or working beneath
the machine.
• Be careful when working around
or maintaining a high-pressure
hydraulic system. Wear proper
eye and hand protection when
searching for a high-pressure hydraulic
leak. Use a piece of wood or cardboard as a
backstop when searching for a pin hole leak in
a hose or a fitting.
• Always relieve pressure before disconnecting or
working on hydraulic system.
• Use a long pole or bar to dislodge material
from paddles or grill. Pressure in hydraulic
system and paddle spring tension can cause
paddles to kick back if they are jammed.
• When a guard is opened or removed for
servicing, be sure to install or close it before
starting.
TIRE SAFETY
1. Failure to follow proper procedures when
mounting a tire on a wheel or rim can produce
a blow out which may result in serious injury or
death.
2. Do not attempt to mount a tire unless you have
the proper equipment and experience to do the
job.
3. Have a qualified tire dealer or repair
serviceman perform required tire maintenance.
HYDRAULIC SAFETY
1. Always place all tractor hydraulic controls in
neutral before dismounting.
2. Make sure that all components in the hydraulic
system are kept in good condition and are
clean.
3. Replace any worn, cut, abraded, flattened or
crimped hoses and metal lines.
4. Do not attempt any makeshift repairs to the
hydraulic lines, fittings or hoses by using tape,
clamps or cements. The hydraulic system
operates under extremely high-pressure.
Such repairs will fail suddenly and create a
hazardous and unsafe condition.
5. Wear proper hand and eye
protection when searching
for a high-pressure hydraulic
leak. Fluid escaping from
a very small hole can be
almost invisible. Use a piece
of wood or cardboard as a
backstop instead of hands to
isolate and identify a leak.
6. If injured by a concentrated high-pressure
stream of hydraulic fluid, seek medical attention
immediately. Serious infection or toxic reaction
can develop from hydraulic fluid piercing the
skin surface.
7. Before applying pressure to the system, make
sure all components are tight and that lines,
hoses and couplings are not damaged.
• Think SAFETY! Work SAFELY

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142636 - Prong Picker (02-October-2019)
Service & Maintenance
TORQUE SPECIFICATIONS HARDWARE/HOSE SPECIFICATIONS
Unless otherwise stated:
• Hardware - Hex, Plated GR5 UNC or P8.8 (metric)
• Hydraulic Hoses - 3/8 & 1/2, ends
come with 3/4 JIC female swivel.
TORQUE
all hardware
HYDRAULIC FITTING TORQUE
Tightening Flare Type Tube Fittings
1. Check flare and flare seat for defects that might
cause leakage.
2. Align tube with fitting before tightening.
3. Lubricate connection and hand tighten swivel
nut until snug.
4. To prevent twisting the tube(s), use two
wrenches. Place one wrench on the connector
body and with the second tighten the swivel nut
to the torque shown.
Hydraulic Fitting Torque*
Size lb.ft (N.m)
1/2 34 (46)
3/4 75 (100)
7/8 90 (122)
* The torque values shown are based on
lubricated connections as in reassembly.
CHECKING BOLT TORQUE
The tables shown below give correct
torque values for various bolts and
capscrews. Tighten all bolts to the
torques specified in chart unless
otherwise noted. Check tightness of bolts periodically,
using bolt torque chart as a guide. Replace hardware
with the same strength (Grade/Class) bolt.
IMPERIAL TORQUE SPECIFICATIONS
(based on “Zinc Plated” values)
SAE-5 SAE-8
Size Grade 5 Grade 8
lb.ft (N.m) lb.ft (N.m)
1/4” 7 (10) 10 (14)
5/16” 15 (20) 20 (28)
3/8” 25 (35) 35 (50)
7/16” 40 (55) 60 (80)
1/2” 65 (90) 90 (120)
9/16” 90 (125) 130 (175)
5/8” 130 (175) 180 (245)
3/4” 230 (310) 320 (435)
7/8” 365 (495) 515 (700)
1” 550 (745) 770 (1050)
1-1/8” 675 (915) 1095 (1485)
1-1/4” 950 (1290) 1545 (2095)
1-3/8” 1250 (1695) 2025 (2745)
1-1/2” 1650 (2245) 2690 (3645)
METRIC TORQUE SPECIFICATIONS
(based on “Zinc Plated” values)
8.8 10.9
Size Class 8.8 Class 10.9
lb.ft (N.m) lb.ft (N.m)
M6 7 (10) 10 (14)
M8 16 (22) 23 (31)
M10 30 (42) 45 (60)
M12 55 (75) 80 (108)
M14 90 (120) 125 (170)
M16 135 (185) 195 (265)
M18 190 (255) 270 (365)
M20 265 (360) 380 (515)
M22 365 (495) 520 (705)
M24 460 (625) 660 (895)
M27 675 (915) 970 (1315)
M30 915 (1240) 1310 (1780)
M33 1250 (1695) 1785 (2420)
M36 1600 (2175) 2290 (3110)
Wheel Tightening Procedure
1. Install and hand tighten nuts/bolts.
2. Tighten to approx 20% Torque value using the
10 Bolt Star or CrissCross pattern shown above.
3. Tighten to Full Torque value using the Star or
CrissCross pattern.
4. If applicable, install Rear Locknuts using Wheel
Torque Values.
Wheel Nut/Bolt Torque
Size lb.ft (N.m)
9/16 120-130 (165-175)
Bolt Patterns
2
1
6
53
4
6 BOLT PATTERN
2
1
34
57
8
8 BOLT PATTERN
1
2
34
5
5 BOLT PATTERN
1
2
3
46
5
79
10 8
10 BOLT PATTERN
WHEEL NUT & WHEEL BOLT TORQUE

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142636 - Prong Picker (02-October-2019)
Service & Maintenance
SERVICE INTERVALS
LUBE AFTER EVERY 8 HRS.
Monthly
check wheel rim bolts tightness - both sides
check grill tine bolts tightness - general
check bearing blocks condition - 4 locations
check grill tine wear / shape - general
check all hardware/bolt tightness - general
Annually / Beginning of Season
grease wheel hub nipple - 2 locations
check/repack wheel bearings - 2 locations
(use a good grade of bearing grease)
8 Hrs. grease hyd lift arms - 2 locations
grease bearing blocks - 2 locations
grease cylinder pins - 4 pins
check for hydraulic fluid leaks - general
check for damaged hoses - general
check tire pressure (45 psi) - general
1. Use only a hand-held grease gun for all
greasing.
2. Wipe grease fitting with a clean cloth before
greasing, to avoid injecting dirt.
3. Replace and repair broken fittings immediately.
4. If fittings will not take grease, remove and clean
thoroughly. Also clean lubricant passageway.
Replace fitting if necessary.
5. Inject grease until you see grease being
expelled from the bearing or bushing areas.
GREASING
1. Always use clean hydraulic fluid and
periodically check for leaks.
2. Grease: Use an SAE multi-purpose
grease with extreme pressure (EP)
performance. Also acceptable is an
SAE multi-purpose lithium base grease.
3. Storing Lubricants: Your machine can operate at
top efficiency only if clean lubricants are used.
Use clean containers to handle all lubricants.
Store them in an area protected from dust,
moisture and other contaminants.
FLUIDS AND LUBRICANTS
Due to the wide range of operational conditions
that the machine will be subjected, it is difficult and
rather complex to specify maintenance requirements
for a given timing. Therefore, the following
maintenance recommendations are to be only a
guide. Frequencies and requirements may be varied
to suit local needs.
Bearing Castings
(Both Sides)
Hyd Lift Arms
(Both Sides)
Wheel Hubs
(Both Sides)
WARNING:Use extreme care
when working around a high
pressure hydraulic system. Make
sure all connections are tight
and all components are in good
repair. Wear hand and eye
protection when searching for suspected leaks.

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142636 - Prong Picker (02-October-2019)
Service & Maintenance
5
HYDRAULIC CYLINDER REPAIR
c) Use a screwdriver or a finger to hold one end
of the ring in the groove while fitting the other
end of the ring into the groove. The tips should
snap in together. Ensure it is secure and fully
seated before the next step.
IMPORTANT: It is important to ensure the
removal ring is completely in the groove
before pulling the rod out. If the ring sticks out
it will get stuck between the head and tube.
Note: Excessive force will not overcome a
jammed ring and could damage the cylinder.
b) Completely remove rod and head from tube.
6. a) Extend the rod to pull head out of tube. If the
rod does not pull out easily, push the head back
in and ensure the ring is properly in the groove.
Replace ring if necessary.
7
7. Remove plastic removal ring from the cylinder
tube.
6
Plastic Ring
Inner Wire Ring
5. Take the plastic removal ring from the seal kit:
a) Straighten the ring and remove any kinks or
excessive curl to make installation easier and
prevent it from falling out.
b) Insert the removal ring into the internal
groove with the feathered
end pointing into the tube.
1. Retract the rod assembly.
2. Remove the external steel wire ring.
REPAIRING A WIRE RING CYLINDER
3. Remove any dirt that may have accumulated on
the cylinder head.
4. Using the mallet and punch, push the head
into the cylinder tube until the
internal tube groove
is fully exposed.
This will also move the
internal wire ring into
its removal position.
4
2
External Ring
Inner Ring
Initial Ring Positions
4
Internal Groove
Inner Ring
Outer
Wire Ring
(Removed)
v1.0
Set Screw
Locking Ring
Wire Ring
Threaded
Head
Threaded
Head
Types of Cylinders
(Wire Ring / Threaded Head)
PREPARATION
When cylinder repair
is required, clean off
unit, disconnect hoses
and plug ports before
removing cylinder.
When removed, open
the cylinder ports and
drain the cylinder's
hydraulic fluid.
Examine the type of
cylinder. Make sure
you have the correct
tools for the job.
You may require the
following tools:
• Proper Seal Kit
• Rubber Mallet
• Screwdriver
• Punch
• Pliers
• Emery cloth
• Torque Wrench