Gearmore RC30-60 Guide

ROTARY
MOWER
Operation, Service &
Parts Manual For
RC30-60, RC30-72,
& RC30-84
February 2006
Form: RC30Mower.pm7

TABLE OF CONTENTS
To The Owner ................................................................................................... 1
Checklists ............................................................................................................ 2
General Safety .................................................................................................... 3
Safety Precautions ............................................................................................. 4
Safety Decals ......................................................................................... 5
Section 1 .............................................................................................................. 6
Description ............................................................................................ 6
Technical Specifications ...................................................................... 7
Section 2 .............................................................................................................. 8
Preparation For Use..........................................................................8-9
Section 3 ............................................................................................................ 10
Operating Instructions ...................................................................... 10
General Safety ..................................................................................... 10
Adjusting for Work ............................................................................ 10
Operation............................................................................................. 11
Section 4 ............................................................................................................ 12
Maintenance Checklist....................................................................... 12
Lubrication .................................................................................... 12-13
Blade Replacement ............................................................................. 13
Slip Clutch Operational Check......................................................... 14
Slip Clutch Adjustment ..................................................................... 14
Torque Specifications ...................................................................................... 15
Section 5 ............................................................................................................ 16
Mower Parts ........................................................................................ 16
Articulated Hitch Assembly.............................................................. 17
Gearbox & Blade Pan Assembly...................................................... 18
Gearbox Assembly ............................................................................. 19
Tailwheel Assembly............................................................................ 20
Chain Guard Assembly ..................................................................... 21
Chain Guard Installation ................................................................... 22
PTO Driveline Assembly .................................................................. 23
Troubleshooting............................................................................................... 24
Limited Warranty ............................................................................................. 25

TO THE OWNER
1
TO THE OWNER:
Please read this manual before using your rotary mower. This manual is provided to give
you the necessary operating and maintenance instructions for keeping your rotary mower in
excellent operating condition. Please read this manual thoroughly. Understand what each
control is for and how to use it. Observe all safety signs on the machine and noted
throughout the manual for safe operation of the implement. Keep this manual handy for
ready reference.
Like all mechanical products, it will require cleaning and upkeep. Lubricate the mower as
specified.
Use only original manufacturer service parts. Substitute parts will void warranty
and may not meet standards required for safe and satisfactory operation.
RETAIL CUSTOMER’S RESPONSIBILITY
It is the retail customer and/or Operator’s responsibility to read the Operator’s
Manual, to operate, lubricate, maintain, and store the product in accordance with all
instructions and safety procedures. Failure of the operator to read the Operator’s
Manual is a misuse of this equipment.
It is the retail customer and/or Operator’s responsibility to inspect the product and
to have any part(s) repaired or replaced when continued operation would cause
damage or excessive wear to other parts or cause safety hazard.
It is the retail customer and/or Operator’s responsibility to deliver the product to the
authorized Dealer, from whom it was purchased, for service or replacement of
defective parts that are covered by warranty. Repairs to be submitted for warranty
consideration must be made within ninety (90) days of failure.
It is the retail customer and/or Operator’s responsibility for any cost incurred by the
Dealer for traveling to or hauling of the product for the purpose of performing a
warranty obligation or inspection.
CUSTOMER INFORMATION
NAME:______________________________________________
PURCHASED FROM: _________________________________
DATE OF PURCHASE:________________________________
MODELNUMBER: ___________________________________
SERIALNUMBER: ___________________________________

DEALER PREPARATION CHECKLIST
2
THIS CHECKLIST TO REMAIN IN OWNER’S MANUAL
ITIS THE RESPONSIBILITY OF THE DEALER TO COMPLETE THE PROCEDURES LISTED
BELOW BEFORE THE DELIVERY OR THE SALE OF THIS IMPLEMENT TO THE CUSTOMER.
Dealer Preparation Check List
1. Implement is completely assembled.
2. Gearbox filled with oil. (See page 12)
3. All fittings lubricated. (See page 12)
4. All shields in place and in good condition.
5. All fasteners torqued to specifications given in Torque Chart. (See page 15)
6. Check PTO driveline. Make sure it is the correct length to operate rotary
mower with intended tractor.
7. Check front of input gearbox shaft and make sure that snap ring is
properly installed. (This is for smooth bore input shaft only.)
8. Check shear bolt for proper grade and installation.
9. All decals in place and readable. (See page 5)
10. Overall condition good (i.e. paint, welds, etc.).
11. Operator's manual has been given to owner and the owner has been instructed
on the safe and proper use of the rotary mower.
12. Purchaser elects to delete deflectors. (front and rear rubber belt, front and
rear chains)
______________________________________________________________________________________________________________________________
WARNING
For Non-Agricultural use OSHA,ASAE, SAE, and ANSI standards require the use of Chain
Guards or other protective guards at all times. Manufacturer strongly recommends the use of
such guards forAgricultural uses as well, to reduce the risk of property damage, serious bodily
injury or even death from objects thrown out by or from contact with the cutting blades.
Dealer's Signature:____________________________________
Purchaser's Signature:__________________________________

GENERAL SAFETY
3
WARNING
NEVER STAND BETWEEN TRACTOR AND MOWER WHILE TRACTOR IS BEING BACKED TO HITCH
WARNING
ADDITIONAL TRACTOR FRONT BALLAST MAY BE NEEDED FOR STABLE OPERATION AND
TRANSPORT OF THE 3-POINT HITCH MOUNTED MOWER. SEE TRACTOR OPERATOR'SMANUAL FOR
RECOMMENDED WEIGHTS.
WARNING
DONOT USE PTO SHAFT ADAPTERS TO CHANGE SIZE OF TRACTOR PTO SHAFT. THE CORRECT
DRIVELINE MUST BE USED TO MATCH TRACTOR PTO SHAFT.
WARNING
THE MOWER CAN FALL FROM HYDRAULIC SYSTEM FAILURE. TOAVOID SERIOUS INJURY OR
DEATH, SECURELY SUPPORT CUTTER BEFORE WORKING UNDERNEATH.
WARNING
AVOID PLACING HANDS, FEET OR ANY OTHER BODY PARTS BENEATH THE MOWER WHILE
MAKING HEIGHT ADJUSTMENTS.
DANGER
STAY CLEAR OF ROTATING DRIVELINE. DONOT OPERATE WITHOUT DRIVELINE SHIELDS IN
PLACE AND IN GOOD CONDITION. FAILURE TO HEED THESE WARNINGS MAY RESULT IN
PERSONAL INJURY OR DEATH.
DANGER
ROTATING MOWER BLADES - STAND CLEAR UNTIL ALL MOTION HAS STOPPED. TOAVOID AN
ACCIDENTAL FALL FROM TRACTOR AND POSSIBLE INJURY BY MOWER, IT IS RECOMMENDED THAT
TRACTOR BE EQUIPPED WITH ROLLOVER PROTECTIVE SYSTEM (ROPS) AND ASEAT BELT BE
USED BY THE OPERATOR FOR ALL MOWING OPERATIONS.
WARNING
ALL ROTARY MOWERS CAN DISCHARGE OBJECTS AT HIGH SPEEDS WHICH COULD RESULT IN
SERIOUS INJURY TO BYSTANDERS OR PASSERSBY. THEREFORE, THIS MOWER IS NOT TO BE
OPERATED ALONG HIGHWAYS OR IN ANY AREA WHERE PEOPLE MAY BE PRESENT UNLESS ALL
SIDES OF THE UNIT ARE ENCLOSED BY PERMANENT BANDS THAT ARE IN GOOD REPAIR.
DANGER
DONOT GET UNDER MOWER UNLESS IT IS SECURELY BLOCKED IN POSITION.ACCIDENTAL FALL
COULD CAUSE SERIOUS INJURY OR DEATH.
WARNING
FAILURE TO INSTALL RETAINING CLIP ON INPUT SHAFT WILL ALLOW DRIVELINE TO SWING
FREELY IF BOLT IS SHEARED CAUSING POSSIBLE INJURY OR DEATH.
WARNING
ROTARY MOWERS MUST BE EQUIPPED WITH FRONT AND REAR GUARDS WHEN OPERATING IN THE
VICINITY OF HIGHWAYS OR IN ANY AREA WHERE PEOPLE MAY BE PRESENT.

SAFETY PRECAUTIONS
4
Most accidents occur because of neglect or carelessness.Avoid needless accidents by following all of the
safety precautions listed below.
Machinery should be operated only by those who are responsible and are authorized to do so.
Stop the engine, lower implement, lock the brakes, and remove the ignition key before dismounting from
the tractor.
Never stand between tractor and implement while tractor is being backed to hitch.
Loose fitting clothing should not be worn to avoid catching on various parts.
Detach implement in area where children normally do not play.
When performing adjustments or maintenance on an implement, first lower it to the ground or block it
securely at a workable height.
Only a qualified operator should be permitted on tractor when in operation; no riders allowed.
Make certain everyone is in the clear before starting tractor or raising or lowering implement.
Operate the tractor and implement only while in driver's seat.
Reduce speed when transporting mounted implements to avoid bouncing and momentary loss of steering
control.A heavy load can cause instability of the tractor. Use extreme care during road travel. Slow
down on turns and watch out for bumps. Tractor may need front counter-weights to counter-balance the
weight of the implement.
Reduce speed on hillsides or curves so there is no danger of tipping.
Avoid driving too close to the edge of ditches or creeks.
Do not transport implement on public roads without reflectors and slow moving vehicle emblem in
daylight and with approved warning lights at night and other periods of poor visibility.
Due to the width of some implements, use extra caution on highways, farm roads, and when approaching
gates.
Always be sure the implement is in the proper position for transport.
Keep alert and watch the front as well as the rear when working with the implement.
ALWAYS KEEPCHILDRENAWAY FROM DANGER WHEN OPERATINGTRACTORAND
IMPLEMENT.
EQUIPTRACTORS WITH ROLLOVER PROTECTION (ROPS)AND KEEPALL
MACHINERY GUARDS IN PLACE.
PLEASE WORK, DRIVE, PLAY,AND LIVE EACH DAY WITH CAREAND CONCERN FOR
YOUR SAFETYAND THAT OFYOUR FAMILYAND FELLOW CITIZENS.

SAFETY DECALS
5
ROTARY MOWERS MAY DISCHARGE OBJECTS
AT HIGH SPEEDS, WHICH COULD RESULT IN
SERIOUS INJURY TO BY-STANDERS OR
PASSERS-BY.
DO NOT OPERATE MOWER IN
VICINITY OF OTHER PERSONS.
KEEP ENCLOSED SIDES, PERMANENT
BANDS, BELTING, HIGHWAY CHAINS
OR OTHER FACTORY APPROVED
DISCHARGE SHIELDS IN PLACE AND IN
GOOD REPAIR.
WARNING WARNING
IMPLEMENT CAN FALL FROM HYDRAULIC
SYSTEM FAILURE. TOAVOID SERIOUS
INJURY OR DEATH:
BLOCK UP OR SECURELY SUPPORT IMPLEMENT
BEFORE WORKING UNDERNEATH.
PURGE ALL AIR FROM HYDRAULIC SYSTEM
BEFORE ATTEMPTING TO RAISE OR LOWER
THIS IMPLEMENT.
STAND CLEAR IF LOWERING OR RAISING
IMPLEMENT.
DONOT USE HAND OR SKIN TO CHECK FOR
HYDRAULIC LEAKS. USE CARDBOARD OR
WOOD.
HIGH PRESSURE OIL LEAKS CAN PENETRATE
SKIN CAUSING SERIOUS INJURY AND GAN-
GRENE. CONSULT APHYSICIAN IMMEDIATELY.
LOWER THE IMPLEMENT AND RELEASE
HYDRAULIC PRESSURE BEFORE LOOSENING
FITTINGS.
REFER TO OWNER'SMANUAL FOR DETAILS.
DANGER
DANGER
CAUTION
WARNING
TOAVOID SERIOUS INJURY OR DEATH:
READ OPERATOR'SMANUAL BEFORE
OPERATING & FOLLOW ALL PRECAUTIONS.
(CONTACT DEALER FOR MANUALS)
KEEP SHIELDS AND GUARDS IN PLACE. KEEP
CLEAR OF DRIVES AND BELTS.
LOWER IMPLEMENT, STOP ENGINE AND
REMOVE KEY BEFORE DISMOUNTING.
SECURELY SUPPORT MOWER & REMOVE KEY
BEFORE WORKING UNDERNEATH.
NORIDERS. DONOT OPERATE MOWER IN
VICINITY OF OTHER PERSONS.
KNOW HOW TO STOP TRACTOR AND
EQUIPMENT QUICKLY IN AN EMERGENCY.
CLEAR MOWING AREA OF DEBRIS.
ALLOW NO CHILDREN OR UNQUALIFIED
PERSONS TO OPERATE EQUIPMENT.
BECAREFUL ON UNEVEN TERRAIN.
DECREASE SPEED WHEN TURNING.
DONOT OPERATE MOWER IN TRANSPORT
POSITION.
THIS IMPLEMENT IS DESIGNED TO OPERATE
AT 540 RPM MAXIMUM TRACTOR PTO
SPEED.
ALL DRIVELINE SHIELDS MUST BE KEPT IN
PLACE.
ROTATINGDRIVELINE
CONTACT CAN CAUSE DEATH
KEEPAWAY
DO NOT OPERATE WITHOUT -
ALL DRIVELINE, TRACTOR AND EQUIPMENT
SHIELDS IN PLACE
DRIVELINES SECURELY ATTACHED AT BOTH ENDS
DRIVELINE SHIELDS THAT TURN FREELY ON
DRIVELINE.
KEEPAWAY - ROTATING BLADES
SERIOUS INJURY OR DEATH CAN RESULT FROM
THROWN OBJECTS OR BLADE CONTACT
DO NOT STAND ON OR NEAR MACHINE
WHEN IN OPERATION
DO NOT OPERATE WITH DEFLECTORS OR
GUARDS REMOVED.
ROPS (ROLLOVER PROTECTIVE SYSTEM)
AND SEAT BELT EQUIPPED TRACTOR IS
RECOMMENDED FOR OPERATOR USE IN ALL
MOWING OPERATIONS.

SECTION 1 - DESCRIPTION
6
Your standard duty RC30 Rotary Mower has been carefully designed for cutting grass and small
brush. This manual is provided to give you the necessary operation and maintenance instructions
for keeping your rotary mower in excellent operating condition. Please read this manual
thoroughly. Understand the purpose of the controls and how to use them. Observe all safety
precautions on the machine and noted throughout this manual. If any assistance or additional
information is needed, contact your authorized dealer. Each mower has free-swinging blades which
reduce the shock on impact when a stationary object is hit. A slip clutch through the input shaft
protects the gearbox and driveline from damage on all models.
Figure 1-1 Major Components
A-Frame
Driveline
Deck
Gearbox
Tailwheel

TECHNICAL SPECIFICATIONS
7
MODEL NO: RC30-60 RC30-72 RC30-84
Cutting Width: 60" 72" 84"
Cutting Height: 1 1/2" - 9" 1 1/2" - 9" 1 1/2" - 9"
Cutting Capacity: Up to 2" Diameter Up to 2" Diameter Up to 2" Diameter
Hitch: Cat. I (Clevis Style) Cat. I (Clevis Style) Cat. I (Clevis Style)
Machine Weight: 905 lbs. 1040 lbs. 1240 lbs.
Gearbox Rating: 85 HP 85 HP 85 HP
Blade Size: 1/2" x 4" 1/2" x 4" 1/2" x 4"
Blade Tip Speed: 12,645 fpm 14,955 fpm 17,448 fpm
Deck Thickness: 10 Gauge 10 Gauge 10 Gauge
Side Skirt Thickness: 1/4"1/4"1/4"
Side Skirt Height: 7 3/4"7 3/4"7 3/4"
Type Tailwheel: Laminated Laminated Laminated
Blade Carrier: Round Round Round
Gearbox Protection: Slip Clutch Slip Clutch Slip Clutch
Recommended Tractor HP: 42 to 85 45 to 85 50 to 85
DUALTAILWHEELOPTIONAL

SECTION 2 - Preparation For Use
8
WARNING
NEVER STAND BETWEEN TRACTOR AND ROTARY MOWER WHILE TRACTOR IS BEING
BACKED TO HITCH
WARNING
ADDITIONAL TRACTOR FRONT BALLAST MAY BE NEEDED FOR STABLE OPERATION AND
TRANSPORT OF THE 3-POINT HITCH MOUNTED MOWER. SEE TRACTOR OPERATOR'SMANUAL FOR
RECOMMENDED WEIGHTS.
WARNING
DONOT USE PTO SHAFT ADAPTERS TO CHANGE SIZE OF TRACTOR PTO SHAFT. THE CORRECT
DRIVELINE MUST BE USED TO MATCH TRACTOR PTO SHAFT.
A. Insure that all bolts and hitch pins on 3-point hitch are tightened. Hitches need no further
adjustment.
B. Attach rotary mower to tractor 3-point hitch per tractor operator's manual. Do not attach
driveline at this time. (figure 2-1)
C. Raise 3-point hitch until front of mower is approximately 1 - 2 inches (25-51 mm) lower
than rear for standard cut or until front of mower is 1 inch (35 mm) higher than rear for
extra shredding. Shut down tractor. Securely block mower in position. For further
explanation of rotary mower adjustment, see paragraph 3-2.
NOTE:
Due to the many variations in tractor/implement hitch points and corresponding differences in
distances between tractor PTO shafts and implement input shafts, drivelines may need to be
shortened as described in the following steps:
D. Raise and lower rotary mower to determine position with shortest distance between the
tractor PTO shaft and gearbox input shaft. Shut down tractor leaving cutter in position of
shortest distance. Securely block rotary mower in position.
E. Pull driveline apart. Attach outer (female) section to tractor PTO shaft. Pull on driveline
section to be sure that yoke locks into place.
F. Hold driveline sections parallel to each other to determine if too long. Each section should
end approximately 3 inches (76 mm) short of reaching universal joint shield on opposite
section. If too long, measure 3 inches (76 mm) back from universal joint shield and mark on
opposite section. (figure 2-2). Do this for both sections.
G. Raise and lower rotary mower to determine position with greatest distance between PTO
shaft and gearbox input shaft. Shut down tractor leaving rotary mower in position of
greatest distance. Securely block rotary mower in position.