Summers Rockpicker User Manual
ROCK PICKER MODEL 700
Rotary Rockpicker, Hyd. Direct Drive
ROCK PICKER MODEL 700
Operator’s
Manual
MODEL 700
IMPORTANT
THE OPERATOR IS RESPONSIBLE FOR ADJUSTING THE MACHINE SINCE MACHINE DOES
NOT COME “FIELD READY” FROM FACTORY.
See www.summersmfg.com for the latest version of all Summers Operator’s Manuals
SUMMERS MANUFACTURING CO., INC.
WEB SITE: www.summersmfg.com
MADDOCK, NORTH DAKOTA 58348 ........................................................ (701) 438-2855
DEVILS LAKE, NORTH DAKOTA 58301 ................................................... (701) 662-5391
8Z1102 © Summers Mfg. Co., Inc. 2013 Printed in USA
READ & UNDERSTAND OPERATOR’S MANUAL
BEFORE USING MACHINE.
CAUTION
Warranty
Summers warrants only products of its manufacture against operational failure caused by defective materials or workmanship which
occur during normal use within 12 months from the date of purchase by the end user from Summers’ dealer.
Summers’ obligation is to replace free of charge any part of any product that Summers inspection shows to be defective excluding
transportation charges to Maddock, ND or Devils Lake, ND and return and also excluding all transportation costs from Summers’ dealer to
the dealer’s customer and all other costs such as removal and installation expense.
Summers shall not be liable for loss of time, manufacturing costs, labor, material, loss of prots, consequential damages, direct or
indirect, because of defective products whether due to rights arising under the contract of sale or independently thereof, and whether or not
such claim is based on contract, tort or warranty.
Written permission for any warranty claim return must be rst obtained from authorized Summers’ personnel. All returns must be
accompanied with a complete written explanation of claimed defects and the circumstances of operational failure.
Written warranty for all component parts used in the manufacture of Summers products is available upon request. Warranty of such
component parts will be determined by said component manufacturer upon their inspection of the claimed defective part.
This express warranty is the sole warranty of Summers. There are no warranties, which extend beyond the warranty herein expressly
set forth. The sales for products of Summers under any other warranty or guarantee express or implied is not authorized. This warranty
voids all previous issues.
SUMMERS MANUFACTURING CO. INC.
MADDOCK, NORTH DAKOTA 58348
DEVILS LAKE, NORTH DAKOTA 58301
2/95
Mathison’s 9/2013
GENERAL INFORMATION
This book is composed of three basic sections: Safety, Operation and Parts.
The Operation Section provides information for proper operation and maintenance of your Summers
Rockpicker. The Parts Section provides a complete parts breakdown for the Model 700 Rockpicker.
Reference to “Right” and “Left” in this book is determined when the machine is viewed from the rear.
Parts are referenced in each drawing with the Summers Manufacturing Part Number. Use this Part Number
when ordering replacement parts from your Summers dealer.
It is the policy of this company to improve its products whenever possible and practical to do so. We reserve
the right to make changes or improvements in the design or construction of parts at any time without incurring
the obligation to install such changes on products previously delivered.
Summers Manufacturing Company, Inc. strongly recommends that each Rockpicker Operator READ
and UNDERSTAND the Operator’s Manual before using the machine. In addition, this Operator’s
Manual should be REVIEWED at least ANNUALLY thereafter.
CONTENTS
Section 1: SAFETY
Safety-Alert Symbol and General Safety Practices ........................................... 1-1
Safety Decals ......................................................................................1-2 – 1-3
Maintenance Safety .................................................................................... 1-4
Section 2: OPERATION and MAINTENANCE
Initial Set-Up .............................................................................................. 2-1
Hydraulic Requirements ................................................................................. 2-1
Electric Solenoid Lift Option .......................................................................... 2-2
Field Operation .............................................................................................. 2-3
Maintenance and Service ................................................................................ 2-3
Troubleshooting ............................................................................................. 2-4
Section 3: PARTS
Main Frame, Model 700 .................................................................................. 3-2
Rake and Reel Assembly, Model 700 ............................................................... 3-3
Drive System, Model 700 ................................................................................ 3-4
Hydraulic Dump System, Model 700 ............................................................... 3-5
Electric Solenoid Lift Option .......................................................................... 3-6
Hydraulic Swing Hitch .................................................................................... 3-7
16.5L X 16.1 Tire ........................................................................................... 3-8
Hub and Axle Components .............................................................................. 3-9
Hydraulic Cylinder Breakdown...................................................................... 3-10
OWNER REGISTER
Name ____________________________________ Size _________________________________________
Address _________________________________ Serial Number _______________________________
City _____________________________________
State/Prov. ______________________________ Date Purchased ______________________________
Mail Code ________________________________ Dealer _______________________________________
i
NOTES
ii
SECTION 1 - SAFETY
SAFETY-ALERT SYMBOL
This symbol is used to denote possible danger and
care should be taken to prevent bodily injury.
This symbol means:
ATTENTION! BECOME ALERT!
YOUR SAFETY IS INVOLVED!
Denition of each Signal Word used in conjunction with the Safety-Alert symbol.
indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury. This signal word is to limited to the most extreme situations.
DANGER
indicates a potentially hazardous situation which, if not avoided, could result in death
or serious injury.
WARNING
indicates a potentially hazardous situation which, if not avoided, may result in minor
or moderate injury. It may also be used to alert against unsafe practices.
CAUTION
GENERAL SAFETY PRACTICES
1. READ AND UNDERSTAND Operator’s Manual before using machine. Review at least annually thereafter.
2. VERIFY all safety devices and shields are in place before using machine.
3. KEEP hands, feet, hair and clothing away from moving parts.
4. STOP engine, place all controls in neutral, set parking brake, remove ignition key and wait for all moving
parts to stop before servicing, adjusting, maintaining or unplugging.
5. BE CAREFUL when working around high pressure hydraulic system.
6. DO NOT ALLOW RIDERS.
7. ALWAYS, make sure that pressure is relieved from hydraulic circuits before servicing or disconnecting from
tractor.
SAFETY DURING TRANSPORT
1. ONLY TOW at a safe speed. Use caution when making corners and meeting trafc.
2. USE transport lock and safety chain between tractor drawbar and rockpicker hitch when transporting on
public roads.
3. If rockpicker is towed on public roadways, hydraulically swing hitch so rockpicker trails directly behind tow-
ing vehicle. Install Transport Lock (8R7890) to prevent cylinder from retracting. The optional solid hitch can
be reversed so rockpicker trails directly behind towing vehicle.
4. COMPLY with local lighting, marking and oversize regulations when transporting on highways.
1-1
SECTION 1 - SAFETY
SAFETY DECALS
1. KEEP SAFETY DECALS AND REFLECTORS CLEAN.
2. REPLACE missing or unreadable decals. New decals are available from your Summers
dealer by ordering correct part number (PN) located in lower right hand corner.
1. SUMMERS DECAL (PN 8Z0079)
2. PINCH POINT HAZARD DECAL (PN 8Z0087)
3. MODEL 700 ROCKPICKER DECAL (PN 8Z0158)
1-2
SECTION 1 - SAFETY
4. GENERAL INFORMATION DECAL (PN 8Z0220)
5. ROCKPICKER BATT WARNING DECAL (PN 8Z0230)
6. GENERAL CAUTION DECAL (PN 8Z0276)
1-3
7. AMBER REFLECTOR (PN 8Z0800)
8. RED-ORANGE REFLECTOR (PN 8Z0805)
SECTION 1 - SAFETY
9. RED REFLECTOR (PN 8Z0810)
MAINTENANCE SAFETY
1. STOP engine, place all controls in neutral, set parking brake, remove ignition key and wait for all moving parts to
stop before servicing, adjusting or maintaining.
2. BE CAREFUL when working around high pressure hydraulic system.
3. ALWAY S make sure that pressure is relieved from hydraulic circuits before serving or disconnecting from tractor.
4. USE EXTREME CARE when making adjustments.
5. KEEP CHILDREN AWAY from machinery at all times.
6. STAND CLEAR of spring loaded batts at all times.
7. BE SAFE!
1-4
SECTION 2 - OPERATION AND MAINTENANCE
INITIAL SETUP
HITCH AND SPINDLE SETUP
Install hitch with hydraulic cylinder on left side, attach hitch jack, safety chain, hydraulic hose stand and tip holder. Use
appropriate lifting device, hitch assembly weighs 410 lbs.
16.5L X 16.1 Tire: Attach receiver tube with plate (8R6206) to frame with tube on top. See Page 3-8.
NOTE: Remove safety transport lock pin located under rake AFTER hydraulic lines and cylinders have been lled with
oil.
BEFORE INITIAL OPERATION
1. After receiving your rockpicker, it is a good idea to double check the entire machine so that all bolts
are securely tightened. Recheck after rst 2 and 8 hours of operation.
2. Make sure all grease ttings are in place and greased properly.
3. Inate tires to recommended ination pressure (see spec. chart on page 2-3) and check wheel bolts
for tightness.
ROAD TOWING
If rockpicker is towed on public roadways, hydraulically swing hitch so rockpicker trails directly behind towing vehicle.
Install Transport Lock (8R7890) to prevent cylinder from retracting. Use transport lock and safety chain when transporting. Check wheel nuts before road transport, after rst 20 miles and every 60 miles thereafter. Also, before road transport
check wheel bearings for tightness and that wheel bearings are well greased.
I M P O R T A N T
HYDRAULIC REQUIREMENTS FOR MODEL 700 ROTARY ROCKPICKER
1. Closed center hydraulic systems usually work very well.
2. Open center hydraulic systems require sufcient oil ow to operate both the hydraulic reel motor and rake lift cylinders
simultaneously. Because open center systems vary greatly in performance, it is difcult to specify a minimum ow
requirement. For example, some open center systems work perfectly. On others, the reel will slow or even pause
while the rake is being raised. On still other open center systems, the rake can be raised only after stopping the
reel.
Therefore, when purchasing a rockpicker to be used on either a closed or open center hydraulic system, we strongly
recommend the tractor or tractors to be used on the rockpicker be tested for acceptable operation before the machine
is put into eld use. It is the responsibility of the dealer and purchaser to make this determination.
If tractor hydraulic pressure and ow are adequate but reel and rake cannot be operated simultaneously, installation
of the Electric Solenoid Lift Option will improve performance. See following page for option installation and operating
instructions.
2-1
SECTION 2 - OPERATION AND MAINTENANCE
INSTALLATION INSTRUCTIONS FOR ELECTRIC SOLENOID LIFT OPTION
1. When installing an Electric Solenoid Lift Option refer to following instructions and see breakdown on page
3-6. Mounting the switch.
Mount switch to a secure support in a convenient location on the tractor. Route the red and white battery wires to a
12-volt battery. Attach the white battery wire to the NEGATIVE (-) terminal and the red battery wire to the POSITIVE
(+) battery terminal. A 20-amp in-line fuse is installed in the red battery wire to protect the system.
2. Mounting the solenoid valve (if not factory installed).
a. Disconnect the 1/2” X 60” hydraulic hose from the tee on the ow control valve on the rockpicker. Route hose
between rockpicker frame and connect tting on opposite side of the 1/2” X 16” hydraulic hose on the valve.
b. Remove two tees from top of solenoid valve.
c. Lift valve up between the rockpicker frame tubes directly behind the ow control valve and secure with two
plates and four 7/16” X 7-1/4” bolts, washers, lockwashers and nuts.
d. Connect the 1/2” X 16” hose on solenoid valve to tee on the ow control valve.
e. Replace ttings on top of solenoid valve removed in step “b”.
f. Remove two 3/8” X 228” hydraulic hoses from rockpicker and discard (tractor to cylinder tee hoses). Replace the
228” hoses with 48” and 180” hoses. Connect front of 48” and rear of 180” hoses to ttings on top of solenoid
valve as shown on page 3-6. Route the 180” hoses along reel drive hoses on rockpicker hitch.
g. Route wire harness from the valve to tractor along hydraulic hoses. Connect to switch assembly. Secure wire
harness with nylon ties.
OPERATING INSTRUCTIONS FOR ELECTRIC SOLENOID LIFT OPTION
1. Read installation instructions thoroughly before operating electric solenoid lift option.
CAUTION: Follow operating instructions and warning decals whenever operating the rockpicker.
2. With reel turning, rake may be raised and lowered by moving the switch up or down. If switch movement doesn’t
correspond to rake movement, rotate switch 1/2 turn.
3. Rake may be raised or lowered the conventional way or by using switch.
4. Reel must be turning in order to raise or lower the rake with switch. When raising the rake with the switch, the
reel will stop when the rake cylinders have reached the end of their travel (until the switch is returned to its neutral
position).
2-2
SECTION 2 - OPERATION AND MAINTENANCE
FIELD OPERATION
CAUTION: NEVER run machine into a buried rock in an effort to dig rocks. Pry rock loose rst. This machine is not
designed to dig rocks. To do so will void the warranty.
ADJUSTMENTS FOR PICKING: MODEL 700 ROTARY ROCKPICKER
In typical eld conditions, lower picking rake and check that frame is level. Adjust by resetting hitch piece (8D0720)
height. The picking rake should be set at a depth to skim rocks off the ground. Adjust Depth Bolts (8R6300, Page 3-3)
to set picking depth. Tractor and reel speed should be such that rocks are thrown to the upper rear section of bucket.
Field conditions should be reasonably dry and rm.
IMPORTANT: Reel speed should not exceed 35 RPM.
MAINTENANCE AND SERVICE
MODEL 700 ROTARY ROCKPICKER
1. Grease 16 grease ttings on rockpicker DAILY.
2. Seasonally, disassemble, clean and repack wheel hub bearings.
3. Check set screws on reel periodically for tightness.
4. The gear case is lled at the factory with 90 weight gear lube. Maintain gear lube at approximately 2/3 full (to top
plug when level) with 90 weight gear lube. Change gear lube after rst 50 hours and every 1000 hours of operation
thereafter.
5. Tighten nuts of rake retaining rods if rake tines become loose.
TIRE INFLATION / WHEEL BOLT / NUT TORQUE
Recommended tire ination pressures and wheel bolt/nut torque are as follows:
TIRE PRESSURE HUB WHEEL NUT TORQUE
16.5L X 16.1 Tire 35 psi 812 - 8 Bolt 240 ft. lb.
ADJUSTING CUSHION VALVE RELIEF PRESSURE ON MODEL 700 HYDRAULIC DRIVE ROCKPICKER
The cushion valve relief pressure is set at the factory at 2000 psi on all hydraulic drive rockpickers. A setting lower than
this can cause inadequate reel torque. To check, follow this procedure:
1. Determine tractor hydraulic system relief pressure by installing pressure gauge at remote outlet.
2. Next, install a tee in the hydraulic line leading from the right side of the ow control valve to the left side of the
cushion block. Referring to the illustration on page 3-4, install tee between left tting 8J6030 of cushion block and
hydraulic hose 8N4060.
3. Install pressure gauge into tee. Activate tractor hydraulic system so reel turns in picking direction, and check pres-
sure with reel stalled. To stall reel insert a large post between a batt and rake.
WARNING: Stand clear of reel at all times while tractor engine is running.
4. Pressure should read about 2000 psi, however, pressure here will never be higher than tractor pressure read in step
#1. If stalled reel pressure is less than pressure in step #1 and less than 2000 psi contact your Summers dealer.
2-3
Inadequate reel
Tractor hydraulic
Check oil level oil filter & tractor
Page
NO. PROBLEM CAUSE CORRECTION PAGE
1. Reel runs too fast
or too slow.
Flow control valve
improperly adjusted.
Adjust flow control valve on rockpicker
for desired reel speed. Flow control
valve adjusts speed of reel only on the
picking direction of rotation - not in
reverse.
Page 2-3
Adjustments for
picking.
NOTE: Reel speed
should not exceed
35 RPM.
2. Rake raises slowly
while reel is turning.
Insufficient oil flow
to rake lift cylinders.
Inherent problem with certain model
tractors - see Hydraulic Requirements
on Page 2.1. On tractors with adjustable
flow controls for each hydraulic circuit
(IE: JD Tortoise-Hare control), set
rockpicker flow control to a maximum
setting and adjust reel speed with tractor
flow control. This should divert extra oil
to hydraulic circuit used for lifting rake.
Page 2-1
Installation of optional electric solenoid
lift solves problem by using oil from
hydraulic motor to power rake lift
cylinders. See installation & operation
instructions on page 2-2 for more details.
Page 2-2
Page 3-6
3
.
torque.
system pressure or
rockpicker cushion
valve relief pressure
set too low.
,
hydraulic pressure. See Adjusting
cushion Valve Relief Pressure
on page 2-3.
-
2-3
4. Leaking seal on
planetary gear box.
Almost always
caused by leaking
shaft seal on hyd.
motor. Oil from
tractor hyd. system
enters gear box
through motor and
this pressure forces
seal out.
Remove hydraulic motor from planetary
gear box and replace shaft seal (Order
Summers PN 8R7407 for complete kit).
Pag 3-4
5. Reel moves
sideways.
Severe side loads. Center reel and retighten set screws
and retaining collar on reel. If problem
continues install shaft collar. Order
Summers PN 8R6830.
Page 3-3
SECTION 2 - OPERATION AND MAINTENANCE
2-4
SECTION 3- PARTS
3-1
SECTION 3- PARTS
3-2
SECTION 3- PARTS
3-3
3-4
SECTION 3- PARTS
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