Yanmar RH170 User manual

OPERATOR’S MANUAL
ROTARY TILLER
RH170
RH190
Original instructions
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TO THE OWNER
Be sure to read this operator’s manual before using.
This operator’s manual describes how to use this rotary correctly and safely and
precautions for using it. Read this manual carefully before using the rotary. Keep this
manual close to your tractor, after you have read through it.
-Do not use this rotary until you understand the contents of this operator’s
manual.
-When you lend or transfer this rotary, attach this operator’s manual to
the rotary.
-When lost or damaged the operator’s manual or safety labels, order
promptly it from the store you purchased the rotary.
-The operator’s manual describes safety instructions for safety operations.
Be sure to read before use.
-The rotary may change using parts for improvement. A part of
illustrations, pictures and contents etc. may be different from the actual
rotary.
-Right-hand and Left-hand sides of the rotary are determined by facing
in the direction of the tractor forward travel.
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Symbols used
DANGER
"DANGER" indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
WARNING
"WARNING" indicates a potentially hazardous situation
which, if not avoided, could result in death or serious
injury.
CAUTION
"CAUTION" indicates a potentially hazardous situation
which, if not avoided, could result in minor or moderate
injury.
IMPORTANT
This [IMPORTANT] symbol indicates important proper
operation or service messages in this manual. When
you see this symbol, carefully read the messages that
follow.
[NOTE]
“NOTE” describe precautions to take while working.
The using purpose of the rotary
Use this rotary for tilling and/or cultivating farm land by attaching to an agricultural
tractor.
Never work for a purpose other than agricultural works and never modify by yourself.
Keep in mind that it would not be covered by the warranty in case that the rotary is
modified without the approval of YANMAR.
Applicable tractor
Rotary Model
Tractor Model
RH170
EF393T
RH190
EF494T
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TABLE OF CONTENTS
TO THE OWNER
1
[1]
Safety instructions
4
1-1. General cautions
4
1-2. When checking before and after work
6
1-3. When attaching/detaching the rotary
7
1-4. Cautions for work
7
1-5. Storing after work
8
1-6. Location of safety labels
10
[2]
After-sale service
11
Warranty documents
11
After-sale service
11
[3]
Outline of rotary
12
[4]
Attaching and detaching the rotary
13
4-1. Installing the lower link and the lift link
13
4-2. Installing the top link
15
4-3. Attaching/detaching the rotary
16
4-4. Adjusting the rotary
18
4-5. Installing tilling blade
19
[5]
Check before work
21
5-1. Check procedure
21
5-2. Check points
21
[6]
Adjusting the rotary to work
22
6-1. PTO shift
22
6-2. Adjusting rear cover
22
[7]
Periodical check and maintenance
24
7-1. Periodic check table
24
7-2. Replacing gearbox oil
25
7-3. Replacing chain case oil
25
7-4. Replacing bearing case R oil
26
7-5. Grease and oil
26
7-6. Replacing tilling blade
27
[8]
Others
28
Specifications
28
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[1] Safety Instructions
- Be sure to follow the instructions described here for safety operations.
- If you do not follow the safety instructions, it may cause injury, death, and may cause a breakage on the
rotary.
* Some instructions may not apply the rotary.
1-1. General cautions
WARNING
■ Never operate in such cases.
- Not good physical condition due to overwork, ill or
medication etc.
- Drunk.
- Pregnant.
- Under aged to take driver's license
■ Suitable clothing for work.
- Don’t wear loose clothing or muffler to avoid from
being caught in a control lever or rotating part.
- Wear non-slip shoes and helmet.
■ When lending others the machine.
Explain how to operate and tell to read the operator’s
manual well before use.
■ When equipping an implement to the rotary,
read the operator’s manual of the implement.
When you equip an implement to the rotary, be sure
to read the operator’s manual of the implement well
in advance.
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CAUTIONS
■ Never modify by yourself.
Use always genuine spare parts and never modify
by yourself.
■ Perform check and service.
Be sure to check and service before and after
using the rotary.
■ Perform periodical check and service.
Perform periodical check and service at least
annually or every 1000 hours operation when the
time comes earlier.
■ Follow traffic regulation when driving on a
road.
Observe traffic regulation when driving on a road.
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1-2. When checking before and after work
WARNING
■ Prevent the rotary from falling down when
checking and servicing.
At the time of check and service, close hydraulic
slow/stop valve to prevent the rotary from falling
down. In addition, put stands under skids or tilling
blade shaft for safety.
■ Perform check and service on a flat and
stabilized place.
Perform check and service on a flat and stabilized
place to prevent the machine from moving or falling
down.
■ Reinstall removed covers.
Be sure reinstalling covers that were removed for
servicing.
CAUTION
■ Be sure a rotation part stops.
Move PTO gear shift lever to the neutral position
and stop the engine. Be sure the rotating parts
stop completely when performing check and
service.
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1-3. When attaching/detaching the rotary
WARNING
■ Perform attaching/detaching the rotary to/from
the tractor on a flat place.
Perform attaching/detaching the rotary on a flat and
stabilized place. Light up at night time.
■ Never allow bringing a person close up to the
tractor and rotary.
When driving the tractor to detach/attach the rotary,
keep people away from the tractor and rotary.
■ Check 3-P hitch link connection before lifting
the rotary.
After attaching the rotary to the tractor, check the
connection of top link, lower links and lift links
before lifting the rotary by the position control lever.
1-4. Cautions for work
WARNING
■ Pay attention to people around the tractor
when steering or reversing the tractor with
the rotary.
Be careful of surrounding people when reversing or
steering the tractor with the rotary.
■Be sure to stop the engine when removing
twined objects from tilling blade shaft.
Never fail to stop the engine whenever removing the
twined objects such straw, grass and weeds from
the tilling blade shaft.
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■ Never put hand or foot under the rotary.
Never get under the rotary. Never put hand or foot
under the rotary.
■ Keep a child away from the tractor.
Never bring a child close to the tractor.
■ Beware of dashing of the tractor in rotary
work.
During rotary tilling work, the tractor may dash
suddenly in a field of hard soil condition, and/or
there are hard object such stones, wood or stump,
or much straws etc. in a field. The rotating blades
push the tractor when blades hit hard objects.
■ Use the rotary for only tilling work.
Never work other than rotary tilling work.
1-5. Storing after work
WARNING
■ Prevent the rotary from falling down when
checking and servicing.
At the time of check and service, close hydraulic
slow/stop valve to prevent the rotary from falling
down. In addition, put stands under skids or tilling
blade shaft for safety.
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■ Perform check and service on a flat and
stabilized place.
Perform check and service on a flat and stabilized
place to prevent the machine from moving or falling
down.
■ Be sure to stop the engine for check and
service.
Be sure to stop the engine when you carry out
check, service and repair, or cleaning.
■ Reinstall removed covers.
Be sure reinstalling covers that were removed for
servicing.
CAUTION
■ Put the rotary on a flat place when storing.
When you store the rotary, lower the skid, put on a
flat place and put a support to prevent from falling
down.
■ Be sure a rotation part stops.
Move PTO gear shift lever to the neutral position
and stop the engine. Be sure the rotating parts
stop completely when performing check and
service.
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1-6. Location of safety labels
Keep the safety instructions labels clean and clearly visible for your safety. If any of them are damaged or
missing, replace them with new ones.
1．1B1657-10630
2．1A6150-93151
3．1B1657-10660
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[2] After-sale service
Warranty documents
The warranty document is needed when a machine defect is covered and collected under warranty
conditions. Read it carefully and keep properly.
After-sale service
When your rotary is not working normally, you can of course consult with your service representative.
Whenever you ask service to your service representative, following information are very helpful to identify
your rotary.
<<Items to be required>>
- Model name and serial number
[Z] Model name and serial number
RH170
RH190
- Using situation, kind of work
e.g. paddy field, vegetable field, etc.
- Operating hours
Check the operating hours with the tractor hour meter.
- Situation or working type when the fault occurs as in detail as possible.
<< Availability of spare parts >>
Maintenance parts or spare parts are available for 10 years after the production of this tractor series has been
discontinued. However, special parts will be subject to consultation. Yanmar may be able to supply a
particular part after the normal supplying period.
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[3] Outline of rotary
1．Rear cover
9．Gear box
2．Hanger rod
10．Rotary pinion shaft
3．Main frame R
11．Rotary cover
4．Main frame L
12．Tilling blade R
5．Mast
13．Tilling blade L
6．Upper arm stay
14．Rotary shaft
7．Chain case cover
15．Top link hitch point
8．Skid
16．Lower link L hitch point
17．Lower link R hitch point
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[4] Attaching and detaching the rotary
WARNING
- Perform attaching and detaching the rotary on a flat place. Take special attention if attaching or detaching
the rotary at night with well lighting facility.
- When reversing the tractor for attaching the rotary, keep people stay away from the tractor and rotary.
- In adjusting a rotary, Apply the parking brake of the tractor, stop the engine and move all speed shift levers
to neutral position whenever adjusting the rotary.
- Never get under the rotary. Never put hand or foot under the rotary. It may cause an injury.
- Never raise the rotary with installing only one side lift link.
- Be sure to stop the engine whenever removing or installing the PTO drive shaft. It may cause an injury.
CAUTIONS
- When you store the rotary, lower the skid, put on a flat place and put a support to prevent from falling
down.
- Install PTO shaft cover on the tractor if PTO drive is not used.
- When an additional implement is equipped, install balance weight as required to maintain stability.
4-1. Installing the lower link and the lift link
1. Install the lower link and the lift link.
(A) Top link: adjust leaning of the rotary backward or
forward.
(BL) Lift link, Left
(BR) Lift link, Right: adjust tilting of the rotary right and
left.
(C) Check chain: adjust swing of the rotary right and
left.
(D) Lower link
IMPORTANT
Set correctly the lower link hole position and a lift link
hole position. If it was not set correctly, following faults
arise.
- When moving the position control lever, the rotary
may touch the tractor, or may damage the tractor
and/or the rotary.
- The drive shaft may cause noise or come off.
The picture shows EF393T.
(A) Top link (BL) Lift link, Left
(BR) Lift link, Right (C) Check chain
(D) Lower link
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Setting the lower ling and the lift link
EF393T+RH170
Tractor model
EF393T
Lower link hole position
(a)
Lift link hole position
[1]
Check chain hole position
(b)
EF393T
[A] Lift link [B] Lower link
EF494T+RH190
Tractor model
EF494T
Lower link hole position
(b)
Lift link hole position
[1]
Check chain hole position
(d)
EF494T
[A] Lift link [B] Lower link
2.Adjust the length of the right lift link (BR) by turning
the turnbuckle and make lower ling links (D) being
the almost same height.
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4-2. Installing the top link
Install the top link to the top link hinge.
IMPORTANT
- When vibration occurs by wear of the pin and the
hole, replace wear parts with new ones promptly.
Installing the top link
EF393T+RH170
Tractor model
EF393T
Top link length [L]
590 mm
Top link hinge hole position
[2]
EF393T
[C] Top link [D] top link hinge
EF494T+RH190
Tractor model
EF494T
Top link length [L]
520 mm
Top link hinge hole position
[2]
EF493T
[C] Top link [D] top link hinge
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4-3. Attaching/detaching the rotary
WARNING
- Never raise the rotary with installing only one side lift link.
- Be sure to stop the engine whenever removing or installing the PTO drive shaft. It may cause an injury.
4-3-1. Attaching the rotary
1. Attaching order of the rotary to the tractor.
1) Attach the left lower link [A] to the rotary.
2) Attach the right lower link [B] to the rotary.
3) Attach the top link [C] to the rotary.
4) Connect the drive shaft [G].
[A] Lower link (left)
[B] Lower link (right)
[C] Top link
[D] Lift link (left)
[E] Lift link (right)
[F] Check chain
[G] Drive shaft
2. Connecting position of top link and lower link
to the rotary
[1], [2] Lower link connecting position
[3] Top link connecting position
3. Connecting the drive shaft [G].
Push the lock pin [b] and put the drive shaft to
the PTO shaft and the rotary pinion shaft.
[a] PTO shaft/Rotary pinion shaft
[b] Lock pin
[G] Drive shaft
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IMPORTANT
- Check the lock pin is placed in the groove of
the PTO shaft and the rotary pinion shaft.
When the pin is placed in the groove, the pin
will return back.
4-3-2. Detaching the rotary
WARNING
- Be sure to stop the engine whenever removing or installing the PTO drive shaft[a]. It may cause an injury.
1. Put the tractor on a flat and hard place.
2. Set right and left skids [b] to the lowest position.
3. Lower the rotary till skids are on the ground.
4. Stop the engine.
[b] Skid (right and left)
5. Remove the drive shaft.
Push the lock pin and pull the drive shaft. Remove
the rotary side first.
6. Pull out the pin of a top link and remove the top link.
7. Remove the right side lower link.
8. Remove the left side lower link.
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4-4. Adjusting the rotary
Adjust the rotary after attaching to the tractor.
1. Be sure that the PTO shift lever and the main gear
shift lever is at the “N”(neutral) position. Be sure
the parking brake is applied.
Start the engine.
2. Raise the rotary with the position control lever at a
height of about 10 cm and stop the engine.
3. Make the rotary level (A) with the tractor by
adjusting the right lift link [a].
4. Align the centerline of the rotary mast with the
centerline of the tractor (B) by adjusting right and
left check chains [b].
The free play (C) of right and left movement of the
rotary is about 10 mm at the top link hitch pin or
lower link hitch pin parts.
Be sure to insert the snap pin to the check chain
after adjustment.
IMPORTANT
- Do not tighten check chains too much strongly. It
may cause a breakage.
5. Start the engine and engage the PTO shift lever to
the low speed. Raise and lower the rotary slowly
with the position control lever and check a noise or
vibration on the drive shaft or the rotary.
If noise and/or vibration occur, stop the engine and
check hitching conditions of the rotary.
6.Adjust the height of skids for work.
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