Koyker 310 User manual

OWNERS MANUAL
MANUAL NO. 657441
LOADER
IMPORTANT - KOYKER DEALER
BE SURE THIS MANUAL IS GIVEN TO THE
PURCHASER FOR FUTURE REFERENCE
KOYKER MANUFACTURING CO., P.O. BOX 409
LENNOX, SD 57039
Phone [phone] E-mail [email protected]
9/9/2013

CONTENTS
CONTENTS PAGE
Introduction............................................................................................................................................ 1
SAFETY INFORMATION
Safety Alert Symbol............................................................................................................................... 2
Safety Information ................................................................................................................................3-5
Safety Decals ......................................................................................................................................... 6
Tractor & Safety Pointers ...................................................................................................................... 7
ASSEMBLY INSTRUCTIONS
Attaching Loader .................................................................................................................................. 8
Attaching Bucket ................................................................................................................................... 8
Detaching Loader................................................................................................................................... 9
OPERATING INSTRUCTIONS
Operation............................................................................................................................................... 10
SERVICE AND MAINTENANCE
Specifications........................................................................................................................................ 11
Loader Inspection, Service, and Maintenance...................................................................................... 12
Hydraulic System Parts Schedule......................................................................................................... 13
Hydraulic System Part Diagram ........................................................................................................... 14
“310” Loader Parts Diagram................................................................................................................. 15
Part Identification Schedule................................................................................................................16-17
Hydraulic Cylinder Information ........................................................................................................... 18
Hydraulic Information .......................................................................................................................... 19
2 1/2” Cylinder Service Kit................................................................................................................... 20
Hydraulic Cylinder Parts Schedule....................................................................................................... 21
Hydraulic Cylinder Part Diagram......................................................................................................... 22
Piston and Gland Diagram ................................................................................................................... 23
Dinoil Valve Hookup............................................................................................................................ 24
LIMITED WARRANTY INFORMATION
Limited Warranty.................................................................................................................................. 25
TORQUE SPECIFICATIONS
Torque Specifications ........................................................................................................................... 26

INTRODUCTION
During a considerable period of time, Koyker Manufacturing Company of Lennox, South Dakota, made a
study of the farm loader industry and concluded that the farmer needs a loader that provides fast
attachment, quality, dependability, few parts, ruggedness, good delivery, and ease of maintenance, all at a
fair price. The fast attaching “310” Farm Loader has achieved these goals. With proper care and handling,
it will give many years of good service in normal farm operations.
Please be sure to follow the manual and give it proper care.
TO THE PURCHASER
You have purchased an excellent product. With proper care and use, it will give you years of good safe
service. Use only KOYKER or KOYKER approved parts in the general maintenance and repair of your
equipment. Please fill out ownership registration card as soon as possible.
Should you have any questions, comments, improvement, or suggestions regarding the contents of any of
the manuals provided, please contact Koyker Manufacturing Company (800-456-1107 or E-mail
[e-mail]).
We care about your safety!
Remember ALL safety decals are no charge from the factory. Please replace all safety decals if
missing or damaged. Your safety is important to us.
Page 1

SAFETYALERT SYMBOL
The symbol shown below is used to call your attention to instructions concerning your personal safety.
Watch for this symbol it points out important safety precautions. It means ATTENTION! Become Alert!
Your Personal Safety Is Involved!
Read the message that follows and be alert to the possibility of personal injury or death.
DANGER: Indicates an imminently hazardous situation that, if not avoided, will result in death or serious
injury.
WARNING: Indicates a potentially hazardous situation that, if not avoided, could result in death or
serious injury.
CAUTION: Indicates a potentially hazardous situation that, if not avoided may result in minor or
moderate injury.
WARNING!
Anyone who will operate or work around a front-end loader should first read this manual.
Page 2

SAFETY
Improper use of a loader can cause serious injury or death. The following safety precautions, and those
given on the tractor mount installation instructions, should be thoroughly understood before attempting to
operate this machine.
BEFORE OPERATING:
Carefully study and understand this manual, the specific tractor mount instructions, and the
attachment(s) manual(s).
Prior to operation, inspect the loader for system leaks and damaged, missing, or malfunctioning
components in an effort to avoid the possibility of a dangerous failure involving structural
members or hydraulic system components.
Be certain any repairs necessary are completed prior to loader operation.
Follow recommended maintenance procedures and precautions on Page 13.
Completely familiarize yourself and others involved with the operation of the hydraulic control
valve before operating the loader.
Be certain all bystanders are clear of the machine and operation area prior to operation.
It may be necessary to add wheel ballast or rear weights as recommended by the tractor
manufacturer to maintain stability of the machine to prevent tipping or upset which could result in
serious injury or death. See mounting instructions for specific information.
It is recommended that both front and rear wheel treads be set to the widest recommended width to
prevent tipping or upset which could result in serious injury or death.
This loader is designed for farm type operations such as snow removal, barn and feedlot cleaning,
light commercial or light grading and digging. It’s design is NOT intended for industrial use.
DURING OPERATION:
Never operate the machine other than from the tractor operator’s seat.
Be sure operating area is clear of others during machine operations.
Never lift, hoist, or carry humans in the bucket or on any portion of the loader or loader
attachments. Failure to heed, may result in serious injury or death.
Page 3

SAFETY CONTINUED
Transport the machine load at the slowest speed possible and with the loader boom at the lowest
transport position to avoid tipping or upsetting, which may result in serious injury or death.
Be extremely careful when working on inclines or near loose fill, rocks, and holes as they can cause
tipping or upsetting which may result in serious injury or death.
Be certain to avoid overhead electrical wires when operating loader. Contact with power lines may
cause serious injury or death.
Avoid sudden stops when lowering or lifting the loader boom to prevent loss of control over the
machine and/or load, which may result in serious injury or death.
Use maximum ballast and the widest recommended wheel setting on your tractor when handling
large shiftable loads.
Never attempt to ram with the bucket at high speed or full tractor power. Sudden impact may result
in structural failure and possible serious injury or death.
Never adjust or perform maintenance on the loader or tractor with the unit in motion, or without
power source locked out.
Never get under bucket or lift arms or reach through the lift arms or bucket linkage when the loader
is in operation. Inadvertent movement may cause serious injury or death.
FOLLOWING OPERATION:
Whenever the machine is not in operation, lower the loader boom and set the tractor brakes,
disengage drive, shut the engine off, and remove the ignition key before dismounting the tractor.
If loader is to be disengaged from tractor, be sure the loader is securely supported on a hard, level
surface and the stand is securely engaged. Be certain all connections between tractor and loader are
free before disengaging.
TRANSPORTING:
Use safety lights and SMV emblem in addition to whatever local codes require when equipment is
being transported on the road or highway. Check with proper authorities for legal limitations.
Transport all loads at a slow and safe speed.
Carry the load as low as possible and maintain adequate visibility and good round clearance at all
times.
Page 4

SAFETY CONTINUED
PERFORMING MAINTENANCE:
Carefully review, understand, and follow the “maintenance” section in this owners manual before
attempting to service loader.
Lower the bucket or attachment to the ground, shut off tractor engine, and relieve pressure in the
hydraulic system before adjusting, lubricating, or servicing the loader.
Escaping hydraulic oil under pressure can penetrate the skin. Never use any part of your body to
check for hydraulic leaks. Use cardboard when checking for leaks. See Fig. 5-1. Relieve hydrau-
lic pressure before disconnecting any hydraulic line. Failure to heed may result in serious injury or
death.
Before disconnecting hydraulic lines, lower the loader and attachments. Lock out the hydraulic
supply and relieve all hydraulic pressure.
Replace any damaged or painted-over decals. See Page 8 for replacement decals.
REMEMBER:
1. Move Slowly!
2. Always use care and common sense!
3. Be careful for your own sake and for that of others!
4. Koyker Mfg. Co. includes all reasonable means for accident prevention except a safe and
careful operator.
FIG. 5-1
Page 5

SAFETY DECALS
Page 6

The use of good judgment and common sense is necessary by the operator in using this loader. The front
and rear wheels should be set for the widest wheel tread to assure best stability. Use extra caution when
rear wheel weights and tire ballast are added to a loader-equipped tractor. DO NOT ram into frozen dirt
piles, frozen manure piles, ice, etc., with great momentum where sudden shock loads are encountered.
Serious and costly damage may result to both the loader and the tractor.
When scraping or back dragging do not extend the attachment cylinders more than one half of the
cylinder’s stroke. A limited amount of leveling may be done, when the loader valving is arranged with a
float control. This will prevent damage to cylinder rods. Never ride in the bucket.
Before operating the loader, be sure no one is standing near it. Only one person, the operator, should be on
the tractor. Remain at the controls and under no circumstances leave the tractor unattended with the bucket
in a raised position.
Never lift a person in the bucket or walk under a raised bucket.
Never drive your loader-equipped tractor down a hill that is steeper than 15 degrees. Carry all loads low
and use care on side hills.
Always keep unused PTO shaft clutch levers disengaged.
Keep hands, feet, and clothing away from all moving parts.
Hydraulic oil, under pressure, can cause injury. Be sure that all connections are tight and that all pressure
is relieved before disconnecting any lines.
Care must be taken with your loader cylinders. Nicks, scratches, rust, or other shaft damage can result in
worn packing causing cylinder leakage and subnormal performance.
MOVE SLOWLY
USE COMMON SENSE
BE CAREFUL FOR YOUR OWN SAKE AND THAT OF OTHER PEOPLE
TRACTOR & SAFETY POINTERS
Page 7

ATTACHING LOADER
1. Will the loader on the storage stands, drive the tractor into the frame of the loader. Connect the
hydraulic lines from the tractor to the loader.
2. Using the tractor hydraulics, activate the loader cylinders to bring the front cross pipe of the
loader level with the front yoke receiver of the tractor. Align the rear receivers of the loader with
the rear mount pipes on the tractor. Position the wrap pivot on both sides of the loader to accept
the mount pipe.
3. Drive the tractor forward to engage the loader into the tractor mounts.
4. As the tractor is driven forward the wrap pivot will flip up to engage the mount pipe. Drive
forward until the mount pipe is fully engaged in the upright receiver.
5. Install and tighten wrap pivot nuts and washers. Periodically check the nuts for tightness and
wear.
Page 8
ATTACHING THE BUCKET
1. For pin on buckets, assemble pins and retaining bolts as shown in the Parts Diagram of this
manual. Make sure all retaining bolts are secure and lubricate necessary points. Inspect pin and
bolts periodically for tightness and wear.
2. For Fast Attach Buckets, tilt the bucket adapter forward so the top round pipe slides into the
receiver on the bucket first. Rotate the bucket back so the two rear pins line up with the holes on
the base plates of the bucket. Turn both pins on bucket adapter so they drop through the holes in
the base plate of the bucket.

DETACHING LOADER
IMPORTANT:
Never attempt loader detachment on grades which are not reasonably level.
1. For best results, drive tractor with 310 Loader mounted to reasonably level area. Raise loader
up slightly and rotate resting stands to the extra hole in the stand plate and replace stand pin.
Remove lock pins at bottom of stands. Extend down stands and replace pins.
2. Remove nut from the pivot stud on each upright. Rescrew the nut back on.
3. Back the tractor until the main frame is free of the mounting pipes. Use the tractor hydraulics to
lift the loader mainframe sufficiently so it will clear any tractor obstructions. Flatten bucket
against the ground. Then uncouple hydraulic hoses and back out of the 310 Loader. Store the
hydraulic couplings properly to prevent dirt from getting into system.
4. To attach, enter and hookup merely by reversing the process. As in any other piece of
equipment, care should be used until the operator becomes familiar with the mounting and
dismounting procedure.
IMPORTANT:
Never store the detached loader where insufficient soil bearing capacity exists. Good firm clay or
firmly packed dirt are sufficient, providing the area is dry. If stability is in question, use blocking
under the stand foot to disperse the load. Failure to heed, may allow the loader to settle and prevent
attachment at a later date.
Page 9

OPERATION
WARNING:
Never allow anyone to operate the loader until they have carefully reviewed and
understood this owners manual.
FILLING THE BUCKET:
When manure is piled on a slope, it is best to drive tractor up the slope straight into the pile. Operating
sideways on a slope has a tendency to tip the loading unit. Drive tractor straight into the pile, raise the
bucket about six inches, then drop bucket and drive forward until the bucket is filled. Tilt bucket
completely back, raise main frame and back away from manure pile.
DUMPING THE BUCKET:
When dumping, bring the bucket to proper dumping height which is just high enough so it will not strike
the spreader as the load is being dumped. With the bucket tipped, drive tractor forward and raise the
bucket at the same time to distribute the load evenly into spreader or conveyance.
RAISING THE BUCKET:
WARNING:
Make sure material in bucket cannot spill out on to tractor when loader boom is raised.
Keep clear of overhead obstructions such as trees, limbs or power lines when raising
the bucket.
Side cutting is the best method of reducing large stockpiles. If the sides of the pile are
too high, use the loader to pull them down and reduce the possibility of slides.
Make sure you keep all lines, cylinders, and complete hydraulic system free of all sand, dirt, and
foreign matter. Use only clean oil in the hydraulic system. When removing the loader from the
tractor, be sure to plug all open ports. If the loader will be out of service for several days or longer,
grease the exposed polished piston shafts on the bucket and the lift cylinders.
WARNING:
NEVER attempt to operate the loader with someone near the loader frame or bucket.
If this loader is equipped with a Grapple Fork, be sure Grapple Teeth are closed before leaving seat
of tractor.
Page 10

Page 3Page 11
SPECIFICATIONS
KOYKER 310 LOADER SPECIFICATIONS
Description of Equipment Rated
Loader Model..................................................................................................................... 310
Bucket Size ..........................................................................................................................6’
Rated Flow......................................................................................................................15 GPM
Maximum Pressure ........................................................................................................2500 PSI
Lift Cylinder Dia..........................................................................................................2 1/2” Bore
Attachment Cylinder Dia.............................................................................................2 1/2” Bore
Tractor Horsepower Range............................................................................................45-90 HP
Dimensional Specifications
(A) *Maximum Lift Height to Pivot Pin.......................................................................... 11’ 7”
(B) *Lift Height under Level Bucket............................................................................... 10’ 9”
(C) *Clearance with Bucket Fully Dumped...................................................................... 9’ 2”
(D) *Reach at Maximum Lift Height................................................................................ 2’ 9”
(E) Maximum Dump Angle................................................................................................40°
(F) *Reach with Bucket on Ground.................................................................................. 6’ 3”
(G) Maximum Rollback Angle...........................................................................................16°
(H) *Digging Depth.............................................................................................................3”
(J) *Overall Height in Carry Position.............................................................................. 5’ 11”
Operational Specifications
(U) *Lift Capacity to Maximum Height at Pivot Pin ....................................................3590 lbs.
(V) *Lift Capacity to Maximum Height 19.7” Forward of Pivot Pin............................2430 lbs.
(Y) *Breakout Force at Ground Line at Pivot Pin.........................................................4930 lbs.
(Z) *Breakout Force at Ground Line 19.7” Forward of Pivot Pin.................................3550 lbs.
*Raising Time................................................................................................................5 seconds
*Lower Time..................................................................................................................3 seconds
*Attachment Dumping Time .........................................................................................3 seconds
*Attachment Rollback Time..........................................................................................2 seconds
*Specifications based on ASABE standards S301.3 (Front-End Agricultural Loader Ratings) The above
information is based on testing done by Koyker Mfg. Variations in maximum lift height and other specs for
different tractors are due to tire sizes, variations in loader mounting locations and hydraulic system
efficiency.
Specifications are subject to change without notice and without liability therefore.

LOADER INSPECTION, SERVICE, AND MAINTENANCE
Lower the bucket to the ground, shut off tractor engine, and relieve the pressure in the hydraulic
system before adjusting, lubricating, or servicing the loader.
Inspect all pins and grease fittings before each use and lubricate with heavy duty grease as
indicated in this manual.
Periodically check all bolts for looseness and re-torque if necessary.
Before storage, be certain all hydraulic cylinders are fully collapsed so that the rod will not be
exposed to the elements or damaged.
Be certain hydraulic system remains sealed at all times to prevent contamination.
Check and maintain an adequate fluid level in the tractor reservoir prior to use.
Inspect all hydraulic system hoses and fittings. Replace prior to further operation if damaged.
WARNING!
Escaping hydraulic oil under pressure can penetrate the skin. Never use body to
check for hydraulic leaks. Use cardboard when checking for leaks. See Fig. 12-1.
Relieve hydraulic pressure before disconnecting any hydraulic line. Failure to
heed may result in serious injury or death.
FIG. 12-1
Page 12

KEY PART NUMBER DESCRIPTION QUANTITY
1...................... 672415................. 2 1/2” Bucket Cylinder ......................................................2
2...................... 672412................. 2 1/2” Lift Cylinder ...........................................................2
3...................... 657488................. 1st Oil Line (Yellow).........................................................1
4...................... 657489................. 2nd Oil Line (Green)..........................................................1
5...................... 657490................. 3rd Oil Line (Red)..............................................................1
6...................... 657491................. 4th Oil Line (Blue).............................................................1
7...................... 655179................. 14” Hydraulic Hose............................................................2
8...................... 663188................. 18” Hydraulic Hose...........................................................4
9...................... 663328................. 26” Hydraulic Hose............................................................2
HYDRAULIC SYSTEM PARTS SCHEDULE
Page 13

HYDRAULIC SYSTEM PARTS DIAGRAM
Page 14

KOYKER “310” LOADER PARTS DIAGRAM
Page 15

KEY PART NUMBER DESCRIPTION QUANTITY
1...................... 656750................. Main Frame........................................................................1
2...................... 665260................. Upright Wrap .....................................................................1
3...................... 672415................. Bucket Cylinder .................................................................2
4...................... 672412................. Lift Cylinder.......................................................................2
5...................... 665993................. Upper Stand .......................................................................2
6...................... 665990................. Lower Stand.......................................................................2
7...................... 656760................. Wrap Pivot .........................................................................2
8...................... 657740................. Indicator Sleeve .................................................................1
9...................... 657744................. Indicator Rod .....................................................................1
10..................... 657199................. Pivot Pin.............................................................................4
11..................... 655179................. 14” Hydraulic Hose............................................................2
12..................... 663328................. 26” Hydraulic Hose............................................................2
13..................... 663188................. 18” Hydraulic Hose............................................................4
14L ......................... ....................... “Koyker” Decal Left..........................................................1
14R......................... ....................... “Koyker” Decal Right........................................................1
14F ................... 680205................. “Koyker” Decal Front........................................................1
15..................... 641119................. Lock Pin.............................................................................2
16..................... 640671................. #3 Hitch Pin Clip ...............................................................2
17..................... 640070................. HH Cap Screw; 1/2” x 5”...................................................2
18..................... 640139................. Hexnut; 1/2”.......................................................................2
19........................... ....................... “310” Decal........................................................................2
20..................... 657488................. 1st Oil Line ........................................................................1
21..................... 657489................. 2nd Oil Line.......................................................................1
22..................... 657490................. 3rd Oil Line........................................................................1
23..................... 657491................. 4th Oil Line .......................................................................1
24..................... 654629................. “American Made” Decal....................................................2
25..................... 666941................. Serial Number Decal..........................................................1
26..................... 640145................. Jamnut; 3/4” .......................................................................2
27..................... 640162................. Lockwasher; 3/4” ...............................................................2
28..................... 640922................. Flatwasher; 3/4” .................................................................2
29..................... 640021................. HH Cap Screw; 5/1 ” x 2 1/4” .........................................10
30..................... 640128................. Locknut; 5/1 ” .................................................................10
31..................... 657198................. Oil Line Cover ...................................................................1
32..................... 640126................. Locknut; 1/4” .....................................................................2
33..................... 661665................. Socket Head Screw; 1/4” x 1 1/4” .....................................8
34..................... 661030................. Wavey Oil Clamp ............................................................5
35..................... 661016................. Oil Line Insulator..............................................................10
36..................... 655181................. Stud; 1/4” x 2 1/2” .............................................................2
37..................... 654121................. Locknut; 3/8” .....................................................................1
38..................... 660369................. Pivot Pin.............................................................................4
39..................... 675015................. Pivot Pin.............................................................................2
40..................... 655674................. Lock Pin.............................................................................2
PARTS IDENTIFICATION SCHEDULE
Page 16

Optional Fast Attach Buckets, Adapters & Standard Buckets
KEY PART NUMBER DESCRIPTION QUANTITY
41..................... 640246................. #6 Hitch Pin .......................................................................2
42..................... 640157................. Lockwasher; 1/2” ..............................................................2
43..................... 640127................. Hexnut; 1/4” .....................................................................2
44..................... 666943................. Warning Decal ...................................................................5
45..................... 666944................. Warning Decal ...................................................................1
46..................... 666945................. Danger Decal .....................................................................1
47..................... 666946................. Warning Decal ...................................................................4
48..................... 661018................. Tinnerman Retainer nut .....................................................4
49..................... 656757................. ..... 6’ Fast Attach Bucket..................................................1
50..................... 656758................. ..... 7’ Fast Attach Bucket..................................................1
51..................... 656759................. ..... 8’ Fast Attach Bucket..................................................1
672964 Bucket Adapter Bundle 1
52..................... 672965................. ..... Bucket Adapter ...........................................................1
53..................... 654121................. ..... Locknut; 3/8” ...............................................................1
54..................... 660369................. ..... Pivot Pin ......................................................................4
55..................... 640021................. ..... HH Cap Screw; 5/1 ” x 2 1/4” ....................................4
56..................... 640128................. ..... Locknut; 5/1 ” .............................................................4
57..................... 640246................. ..... #6 Hitch Pin .................................................................2
58..................... 654699................. ..... Latch Pin......................................................................2
59..................... 650389................. ..... Spring Pin.....................................................................2
60..................... 650388................. ..... Spring...........................................................................2
61..................... 650390................. ..... Latch Pin Washer.........................................................2
62..................... 673012................. ..... HH Cap Screw; 3/8” x 1 3/4” ......................................1
63..................... 640132................. ..... Nut; 3/8”.......................................................................1
PARTS IDENTIFICATION CONTINUED
Page 17