Ashland EHDW-3620-14 User manual

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Parts Manual
EHDW-3620-14
EHDW-4220-14
WG-EHDW-##20-14 8/20 25407+

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Table of Contents
Introduction
3
Disc Harrow Specifications
4
Frame
5
Leveling Cylinder
8
Lift Cylinder
9
Hydraulic Schematic
10
Disc Gang
11
Light Kit
- Optional
12
Oil Bath Bearing
13
Hub & Axle
14
Decals
15
Notations
16
Operation & Maintenance
17
Safety Guidelines
18
Tire Inflation & Torque Chart
19
Tire Service
20
Hub Service
21
Warranty Statement
22

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Introduction
Thank you for choosing an Ashland disc harrow for your earth tilling needs.
Years of research, testing, and successful application have been spent to
ensure quality and maximum performance for our customers.
Quality Policy
It is our mission to exceed our customers’ expectations in quality, delivery, and cost
through continuous improvement and customer interaction.
Please read and understand this manual before attempting to attach or operate this
disc harrow. This manual should always remain with the machine. Be sure and fill out
and send in the owner’s registration form at the beginning of this manual, or you may
fill out the form on-line by going to ashlandind.com and click on “Owner Registration”
in the Parts section drop-down. If you have questions, please feel free to call or email
us. You can visit us on-line at www.ashlandind.com.
Ashland Industries hours of operation are 8:00 a.m. to 5:00 p.m. CST. We can be
reached toll free at: 877-634-4622.
ID Number
You can find the serial number plate for most machines on the front section of the
frame along in the inner tube. The letter and numbers stamped identify the serial
number, model number, weight, and date of manufacture. Please record this serial
number for use in ordering parts, warranty issues, and to track your equipment if it is
ever stolen.
Important
Parts must be ordered through your local authorized ASHLAND dealer. Be sure to
state MODEL and SERIAL NUMBER of your machine. Ashland Industries Weldable
replacement parts are also available to rebuild, modify, or update your machine to
current factory specifications.

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Disc Harrow Specifications
Disc Diameter
36 Inches - Notched
42 Inches - Notched
Disc Spacing
20 Inches
Number of Discs
7 Front, 7 Rear
Overall Dimensions:
Length (Frame)
Width
252 Inches
139 Inches
Gang Diameter
2-1/2 Inches
Weight
14,840 Pounds (36” Discs)
15,720 Pounds (42” Discs)
Width of Cut
132 Inches
Depth of Cut
12” (36” Discs)
14 Inches (42” Discs)
Gang Angle (Adjustable):
Front
Rear
19°, 21°, 24°
19°, 21°, 24°
Cylinders:
Leveling
Lift
One (4 x 20-1/4 Inches)
Two (4-1/2 x 19-5/8 Inches)
Horsepower Requirements:
Tractor (Single)
300 –620

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Frame
Item
Part Number
Description
01
400522
Frame: Main Center, EHDW
02
400523
Frame: Front Gang
03
400524
Frame: Rear Gang
04
400525
Frame: Wheel Carriage, EHDW
05
400483
Bushing: 1
-1/2" x 1-1/4" x 1"
06
400526
Pivot: Offset Pole Bar
07A
400527
Pole: Main Drawbar, EHDW
07B
400528
Collar: Coupling Lock Ring
07C
400529
Pin: Yoke Swivel Shaft
07D
AFP
-00010
Pin: 1/4" x 2" Cotter
07E
601775
Yoke: Main Pivot, 3
-1/8” Hole
07F
601780
Pin: 2" x 12
-3/8" Threaded w/ D-Head
07G
601779
Yoke: Clevis Swivel Shaft
07H
AFN
-00075
Flange Nut: 2”
-8 Slotted Jam
07I
AFP
-00019
Pin: 3/8" x 4
-1/2" Cotter
07J
400532
Plate: Adjustable Upper Support
07K
400533
Plate: Adjustable Lower Support
07L
400534
Pin: 1
-1/2" x 9-1/2"
07N
400437
Flange Nut: 1
-1/2"-6 Slotted Jam HT
07O
AFP
-00015
Pin: 1/4" x 2
-1/2" Cotter
08
400537
Chain: Safety Link
10
400521
Clamp: Hose Body, Double
11
AFN
-00080
Nut: 1
-3/4"-5 Hex
12
AFW
-00007
Washer: 3/4" Flat
13
AFB
-00004
HHCS: 3/4"
-10 x 6"
14
AFB
-00064
HHCS: 3/4"
-10 x 3"
15
400444
Pin: 1
-3/16" x 3-1/2"
16
400471
Pin: 3/4" x 4"

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Frame
Item
Part Number
Description
17
AFP
-00018
Pin: 3/16" x 3
-1/2" Hairpin
18
400538
Pin: Transport Lock
19
AFB
-00188
HHCS: 1"
-8 x 2"
20
AFW
-00006
Washer: 1" Split Lock
21
400395
Bracket: Scraper Blade Support, EHDW
22
400396
Scraper: Front Blade, EHDW
23
400397
Scraper: Rear Blade, EHDW
24
400415
Cylinder: 4" x 20
-1/4"
25
400423
Cylinder: 4
-1/2" x 25-3/4"
26
400550
Pin: 1
-1/4" x 7"
28
400539
Pin: 1
-3/16" x 7“ w/ Cross Holes
29
400540
Pin: 1
-3/16" x 12-1/4” w/ Cross Holes
30
A125019
Fitting: 1/4"
-28 Straight Grease
31
400541
Holder: Hose
32
400470
Jack: Top Wind
33
400405
Rod Stopper: 15/16" Wide
34
400406
Rod Stopper: 1
-3/16" Wide
35
400407
Rod Stopper: 1
-3/8" Wide
36
400408
Rod Stopper: 1
-9/16" Wide
37
400409
Rod Stopper: 1
-3/4" Wide
38
AFN
-00006
Nut: 3/4"
-10
39
AFW
-00002
Washer: 3/4" Split Lock
40
400542
Link: Pole Bar
41
400543
Regulator: Adjustment Spindle
42
400544
Pin:
1-1/2" x 8"
43
400545
Pin: 1
-1/2" x 9"
44
400546
Pin: 1
-3/4" x 16“ w/ Tapped Ends
45
400547
Lock: Cylinder Transport 13
-1/2" Long

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Frame
Item
Part Number
Description
46
400548
Lock: Cylinder Transport 7
-3/4" Long
47
400481
Wrench: 1
-1/2" & 1-5/8" Gang Wrench
48
400479
Wrench: 2
-1/8" & 2-1/2" Flat Wrench
49
400484
Wrench: 1" Cylindrical Wrench
50
400549
Wrench: 1
-1/4" Nut
51
AFP
-00020
Pin: 5/16" x 2
-1/2" Roll Pin
52
AFW
-00015
Washer: 1
-1/4" Flat
53
400437
Flange Nut: 1
-1/2"-6 Slotted Jam HT
54
AFP
-00015
Pin: 1/4" x 2
-1/2" Cotter
55
AFB
-00189
HHCS: 7/16"
-14 x 1-1/2"
56
AFW
-00029
Washer: 7/16" Split Lock
57
AFB
-00186
Carriage Bolt: 5/8"
-11 x 1-1/4"
58
AFW
-00031
Washer: 5/8" Split Lock
59
AFN
-00003
Nut: 5/8"
-11
60
400551
Washer: 1" HT
61
400401
Bolt
Ass'y.: 1-1/4"-7 x 5-3/4", w/ Spacer, Washer, Nuts
62
505289
Bushing: 3
-1/2” x 2-1/16” x 3-1/4” (for 2” Category 4 Pin)
63
505290
Bushing: 3
-1/2” x 2-9/16” x 3-1/4” (for 2-1/2” Adapter Pin)

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Item
Part Number
Description
01
400552
Barrel: 4" x 15
-5/8"
02
400497
Nut: 1
-1/4" Rod End
Seal Kit
400414
Kit: Includes Item 03, 04, 05, 06, 12, 15, 16
03
O
-Ring: Piston
04
Wiper: Piston Guide
05
O
-Ring: Ring Support
06
Ring: 2" Back
-up
07
400553
Clevis: Cylinder Rod End
08
AFB
-00184
SHCS: 3/8"
-16 x 2"
09
AFW
-00028
Washer: 3/8" Split Lock
10
400554
Rod: 2"
12
Seal: Piston Back
-up Guide Ring
13
AFN
-00048
Nut: 3/8"
-16
14
400488
Support: 2" x 4" Ring
15
Ring: 2" Wear Band
16
Seal: 2" Rod Gasket
17
400487
Cap: Gland End
18
400495
Piston: 2" x 4"
Leveling Cylinder - 400415

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Item
Part Number
Description
01
400555
Rod: 2
-1/4"
02
400556
Barrel: 4
-1/2" x 19-5/8"
03
400557
Support: 2
-1/4" x 4-1/2"
04
400558
Cap: Gland End
05
A125019
Fitting: 1/4"
-28 Straight Grease
Seal Kit
400422
Kit: Includes Item 06, 07, 08, 09, 10, 12
06
Seal: 2
-1/4" Rod Gasket
07
Seal: 2
-1/4" U-Cup
08
Ring: 2
-1/4" Wear Band
09
O
-Ring: Gland
10
O
-Ring: Support
12
Wiper: Piston Guide
13
400565
Piston: Large Body
14
400566
Piston: Small Body
15
400567
Screw: Piston
Lift Cylinder - 400423

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Item
Part Number
Description
01
400423
Cylinder: 4
-1/2" x 25-3/4"
02
400415
Cylinder: 4" x 20
-1/4”
03
AHA
-00126
Adapter: 45
°1/2" Male ORB x 1/2“ Female NPT Swivel
04
AHA
-00134
Adapter: Straight 1/2” Male ORB x 1/2” Male NPT
05
AHA
-00135
Adapter: Tee Swivel 1/2” Female NPT
06
AHF
-00020
Coupler: 1/2" Body Male Poppet
07
400643
Hose
Ass'y.: 1/2" x 216-1/2“ Male NPT
08
400644
Hose
Ass'y.: 1/2" x 208-1/2“ Male NPT
09
400645
Hose
Ass'y.: 1/2" x 389“ Male NPT
10
400646
Hose
Ass'y.: 1/2" x 374” Male NPT
11
400647
Hose
Ass’y.: 1/2” x 19” Male NPT
12
400648
Hose
Ass’y.: 1/2” x 45” Male NPT
Hydraulic Schematic

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Item
Part Number
Description
01A
400419
Shaft: 2
-1/2" x 130-11/16"L, w/o Nut
01B
400413
Nut: 2
-1/2" Hex HT
2
400416
Lock: Keeper for 2
-1/2" Nut
3
400412
Axle Washer: External, 2
-1/2"
4
400411
Axle Washer: Internal, 2
-1/2"
5
400417
Bearing: 2
-1/2"ID x 19-1/2"L Oil Bath w/ Wear Plate
6
400394
Spacer: 2
-1/2" ID x 19-1/2"L Cast Gang
7
400427
Disc: 2
-1/2” ID x 36” OD, 12-Notch, Cutting Blade
7
400616
Disc: 2
-1/2" ID x 42" OD, 12-Notch, Cutting Blade
8
AFB
-00190
HHCS: 5/8"
-11 x 1-3/4"
9
AFW
-00031
Washer: 5/8” Split Lock
10
AFN
-00003
Nut: 5/8"
-11
11
400401
Bolt
Ass'y.: 1-1/4"-7 x 5-3/4", w/ Spacer, Washer, Nuts
Disc Gang

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Item
Part Number
Description
601596
Bracket
Ass’y.: Light & SMV Sign (Includes Items 01 –08)
01
400722
SMV
Ass’y.: Sign & Mount Bracket
02
601597
Bracket: Rear Clamp
03
504784
Base: Main Mount Platform
04
A125410
Light: 4” Round Amber LED
05
AFB
-00020
HHCS: 5/16”
-18 x 3/4”
06
AFN
-00016
Nut: 5/16”
-18
07
AFN
-00044
Nut: 3/8”
-16 Nylon Insert Lock
08
AFW
-00010
Washer: 3/8” Flat
400295
Harness: Wire w/ Rear Light Plugs
A125448
Plug: Wire Harness 7
-Pin, Tractor Connection
A125450
Spring: Wire Harness Plug Relief, Tractor Connection
Light Kit - Optional

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Item
Part Number
Description
Oil: SAE 80W
-90 Heavy Duty Gear Oil
01
400573
Flange: Inner Bearing
02
400499
Housing: Oil Bath Bearing
03
400424
Guard: Heavy Duty Oil Bath Bearing Wear Plate
04
400506
Collar: Seal Retainer
05
400505
Seal: Kit, Oil Bath Bearing
06
400500
Bearing
Ass'y.: Tapered Roller Cup/Cone
07
400574
Axle: Oil Bearing
08
400504
Cap: Oil Bath Housing
09
400575
Flange: Outer Bearing
10
AFB
-00143
HHCS: 1/2"
-13 x 1"
11
AFW
-00030
Washer: 1/2" Split Lock
12
AFW
-00009
Washer: 1/2"
13
400509
Plug: Oil Cap
14
AFB
-00015
HHCS: 1/2"
-13 x 1-1/2"
15
AFW
-00030
Washer: 1/2" Split Lock
16
400502
Gasket: 0.01", 6
-hole
17
400503
Gasket: 0.004", 6
-hole
Oil Bath Bearing - 400417

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Item
Part Number
Description
01
A14011
Seal: Grease
02
A14012
Bearing: Cone Inner
03
A14013
Bearing: Cup Inner
04
400257
Stud: Wheel 3/4"
-16 x 2-3/4"
05
A14010A
Hub: 10
-Hole
06
A14014
Bearing: Cup Outer
07
A14015
Bearing
: Cone Outer
08
AFW
-00036
Washer: 3/4" x 2", Thick Hardened Washer
09
A10046
Nut: Lug 3/4"
-16
10
A10172
Nut: Spindle 2
-5/8" (Inner)
11
A10049A
Ring: Spindle Lock
12
A10048
Nut: Spindle 2
-5/8" (Outer)
13
A14004
Cap: Hub
14
AFB
-00080
HHCS: 5/16"
-18 x 1/2"
15
400577
Wheel: 22.5” x 13” 10
-Hole
16
ATI
-00029
Tire: 445/50R
-22.5
17
400425
Axle: 3
-1/2” x 19-1/4”
Hub & Axle

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Decals
Safety Decals Model Decals
ADS-00061
Decal: 25.75 x 5”
ADS-00062
Decal: 36 x 7”
ADS-00064
Decal: AI 5.5 x 3.5”
ADS-00065
Decal: AI 11.5 x 7”
ADS-00081
Decal: 36”
ADS-00086
Decal: 42”
750464
Decal: High Pressure
ADS-00011
Decal: Pinch Point
ADS-00019
Decal: Grease Daily
ADS-00030
Decal: Turning
ADS-00046
Decal: Do Lifting
ADS-00047
Decal: Tran. Lock

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Notations

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Operation & Maintenance
Your Ashland disc harrow is a durable piece of equipment and with proper care will yield
many years of trouble-free operation. However, the life of your machine can be severely
shortened by poor maintenance. You must follow consistent maintenance practices and use
superior quality grease and hydraulic oil (compatible with the power unit’s hydraulic system)
to insure the longest, most productive use from your disc harrow.
Your disc harrow should be greased at all points where grease fittings are provided.
REMOVE TRANSPORT LOCKS prior to operation. Next, extend and retract all cylinders
several times to force out any air from the hydraulic cylinders and lines. Check the oil levels
in the tractor hydraulic system and add to maintain the proper level. Care should be used
when adding oil or when disconnecting any oil line to keep all dirt out of the oil as dirt is a
major factor in the failure of hydraulic components.
When your disc harrow is placed into operation, the operator will have to “feel out” the
amount of depth of cut to obtain maximum cutting efficiency. This is usually accomplished
by taking a lesser and more uniform cut; however, some soil conditions such as loose sand
may require a “pumping action” obtained by taking successive deep cuts and lifting out of
cut as the tractor begins to lose power or traction.
After 8 hours of operation, all bolts should be checked and tightened if necessary and all
grease fittings lubricated. Check tire pressures daily. Also, check pins and cutting edges for
signs of wear.
After 50 hours work, all bolts should be rechecked and tightened if necessary. Check wheel
bearings and adjust if necessary.
Check wheel lug nut torque.
•After first 2 hours of operation.
•Recheck daily for the next 2 weeks.
•Tighten wheel lug nuts in a star pattern.
•Torque wheel lug nut (see Torque Specifications).
After 300 hours work, clean and repack wheel bearings and replace, if necessary, cutting
edges, worn pins, etc.
Failure to replace worn cutting edges may result in unnecessary wear to
the machines sides and floor.
Before starting a job, make sure Diggers Hot Line has been contacted and all underground
utilities have been properly located (electric, phone, and pipelines). Have a clear
understanding of all local, OSHA, and MSHA rules that apply to the job. Beware of your
environment and keep others a safe distance from the machine while familiarizing yourself
with the machine’s controls. The machine requires a power source with TWO 4-way (double
acting) hydraulic control valves.

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Safety Guidelines
Safety Signal Words:
Please note the use of signal words such as DANGER, WARNING, and CAUTION paired with
the safety messages on your disc harrow. The appropriate signal word for each safety
message has been selected using the following guidelines:
Operator safety is a main concern in designing and developing equipment. Designers and
manufacturers include as many safety features as possible. However, every year many
accidents occur on job sites which could have been avoided by extra thought and a more
careful approach to handling equipment. The operator can avoid many accidents by
observing the precautions in this section. To avoid personal injury, study the following
precautions and insist those working with, or for you, follow them.
Replace any CAUTION, WARNING, DANGER, or instruction safety decal that is not readable
or missing.
Do not attempt to operate this equipment under the influence of drugs or alcohol.
Review the safety instructions in the operator’s manual with all users annually.
Operators should be responsible adults who are familiar with machinery
and trained in the equipment’s operations. Do not allow persons to
operate or assemble this unit until they have read this manual and the
owner’s manual and have developed a thorough understanding of the
safety precautions and machine operation.
•DANGER: Indicates an imminently hazardous situation that, if not avoided, will
result in death or significant injury. This signal word is limited to the most
extreme situations –typically for machine components which, for functional
purposed, cannot be guarded.
•WARNING: Indicates a potentially hazardous situation that, if not avoided,
could result in death or significant injury. For example, hazards that are
exposed when guards are removed. This signal word may also be used to alert
against unsafe practices.
•CAUTION: Indicates a potentially hazardous situation that, if not avoided, may
result in minor or moderate injury. This signal word may also be used to alert
against unsafe practices.

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Tire Inflation & Torque Chart
On new machines, wheel nuts must be retorqued after the first 2 hours of
operation.
Check tires daily to ensure correct inflation levels with an accurate gauge having
6.9 kPa [(0.07 bar) 1 PSI] gradations.
Also check for:
• Tire Damage
• Loose or missing wheel lugs, nuts, or caps
• Uneven wear
• Damaged Rims
Torque
Foot/Pounds HHCS: Bolt Diameter
12 1/4”
25 5/16”
45 3/8”
70 7/16”
110 1/2”
150 9/16”
220 5/8”
380 3/4”
600 7/8”
950 1”
1250 1-1/8”
1500 1-1/4”
2300 1-3/8”
2700 1-1/2”
Torque
Foot/Pounds Wheel Bolt/Stud Size
80 –90 1/2”-20
85 –100 5/8”-18
450 –500 3/4“-16
450 –500 M22 x 1.5
750 –800 1-1/8”-16
Tire Inflation: PSI @ 6mph
EHDW Disc Harrow
Tire Size Max PSI
445/50R22.5 97

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Tire Service
The task of servicing tires and wheels can be extremely dangerous and should be
performed by trained personnel only, using the correct tools and following best-
practice. Do not attempt to mount, demount, or inflate a tire if you do not have the
proper equipment and experience to perform the job. Call a qualified repair service
to inspect the assembly and make necessary repairs. Failure to heed warnings
could lead to serious injury or death.
Visually inspect tires and wheels daily. Carefully inspect any rim and tire assembly that has
been run underinflated or flat before reinflating the tire to make sure there is no damage to
either the rim or tire.
•ALWAYS wear personal protection equipment such as gloves, footwear, eye protection,
hearing protection, and head gear when servicing tire and wheel components.
•DO NOT operate with damaged rims, tire cuts or bubbles, missing lug bolts, or nuts or
damaged rims.
•ALWAYS maintain the correct tire pressure. NEVER exceed recommended tire inflation
pressure.
•INSPECT any rim and tire assembly that has been run flat or severely underinflated before
reinflating the tire. Damage to the rim and tire may have developed.
•NEVER reinflate a tire that has lost air pressure or has been run flat without determining
and correcting the problem.
•NEVER try to repair wheel, rim, or tire components parts. Parts that are cracked, worn,
pitted with corrosion, or damaged must be discarded and replaced with good parts.
•ALWAYS use approved tire and rim combinations for the model that you have and verify
that part numbers of components are correctly matched for the assembly.
•ALWAYS exhaust all air from the tire prior to demounting.
•ALWAYS place wheel and tire assemblies in restraining devices (safety cage) when inflating
tires. Use a clip-on chuck and long extension hose to allow you to stand to the side of the
tire and not in front of it.
•NEVER weld or cut on an inflated tire assembly. Welding heat can cause increased
pressure which could result in tire explosion.
•ALWAYS use proper lifting techniques and mechanized lifting aids to move heavy
components and assemblies.
•NEVER leave a tire, wheel, or assembly unsecured in a vertical position.
•ALWAYS take care when moving tires and wheels, making sure that other people in the
area are not endangered.