1. To attach the Slip Clutch Shield-Guide shield bracket (2) through weldment shield (1) so that bracket stud screw protrudes through weldment hole and retain in place with wingnut (3).
2. Align holes of shield bracket with gearbox holes positioned around input shaft. Retain bracket to gearbox with three 3/8” x 3/4” bolts (6), 3/8” washers (4), and 3/8” lockwashers (5). Position hardware as follows: gearbox, bracket, flatwas...
TAIL WHEEL INSTALLATION (Model 260 & 272)
1. Insert the Caster Fork Weldment (11) into the Tail Wheel Beam (1) and retain with Flatwasher (9) and Cotter Pin (10).
2. Tighten all bolts to the proper torque. Figure Asm-R-0408.
TAIL WHEEL INSTALLATION - LIFT TYPE (Model 284 Only)
1. Slide bracket (2) onto beam (1).
2. Insert bolt (28) through lugs on end of beam (1) and lug on deck. NOTE: Insert spacer (10)into deck lug before inserting bolt (28). Install locknut (3).
3. Install bracket (4) to rear center of deck using bolt (24) and retain using locknut (23).
4. Insert bolt (24) through holes in brackets (2) and (4) which will give approximately desired cutting height. Install locknut (23) and tighten all bolts. Figure Asm-R-0402.
DUAL TAIL WHEEL INSTALLATION - LIFT TYPE (Model 284 Only)
1. Attach the tailwheel beam (1) to the lug toward the outer edge of the deck just to the rear of the cross reinforcement using bolt (2) and nut (3). Note: Slide position bracket (4) onto beam before installing.
2. Attach the brackets (5) to the deck using bolts (29) and nuts (30). Insert bolt (29) through holes in brackets (5) and (4) which will give approximate desired cutting height. Install locknut (30) and tighten all bolts.
1. Attach the A-Frame Bars (2) to the right and left Hitch Lugs (14 & 15) with two 5/8” x 2” bolts (16), 5/8” washers (17), bushing (18) and 5/8” locknuts (19) Figure Asm-R-0342.
2. Attach the Lift Strap Bars (1) to the Mainframe with two 5/8” bolts (16), 5/8” flatwasher (17), bushing (18) and 5/8” locknut (19) Figure Asm-R-0341.
3. Attach flex links (3) to A-Frame bars (2) with 5/8” x 3” carriage bolts (7), bushings (8), flatwasher (9) and nut (10).
4. Insert quick hitch bushing (5) between A-Frame and insert 5/8” x 4-1/2” bolt (4) and 3/4” locknut (6).
5. Insert 5/8” x 2-3/4 bolt (11) through center holes in flex links (3) with bushing (12) through forward holes in rear braces (1).
6. Insert bolt (13) through 2nd hole from front in rear braces (1) and secure with locknut (10).
7. Insert 5/8” x 2-3/4” bolt (11) through rear holes in flex links (3) through bushing (12) with bushing over or on top of rear braces (1).
A-FRAME INSTALLATION (Model 284)
1. Attach the A-Frame Bars (2) to the right and left Hitch Lugs (14 & 15) with two 5/8” x 2” bolts (16), 5/8” washers (17), bushing (18) and 5/8” locknuts (19).
2. Attach the Lift Strap Bars (1) to the Mainframe with two 5/8” bolts (16), 5/8” flatwasher (17), bushing (18) and 5/8” locknut.
3. Attach flex links (3) to A-Frame bars (2) with 5/8” x 3” carriage bolts (7), bushings (8), flatwasher (9) and nut (10).
4. Insert quick hitch bushing (5) between A-Frame and insert 5/8” x 4-1/2” bolt (4) and 3/4” locknut (6).
5. Insert 5/8” x 2-3/4 bolt (11) through center holes in flex links (3) with bushing (12) through forward holes in rear braces (1).
6. Insert bolt (13) through 2nd hole from front in rear braces (1) and secure with locknut (10).
7. Insert 5/8” x 2-3/4” bolt (11) through rear holes in flex links (3) through bushing (12) with bushing over or on top of rear braces (1). Figure Asm-R-0404
DRIVELINE ATTACHMENT
TONGUE (Pull Type)
AXLE ASSEMBLY
HYDRAULIC OR MANUAL LIFT (Model 284 Only)
WHEELS (Model 284 Only)
CHAIN GUARDS (Optional Equipment - All Models)
HYDRAULIC OR MANUAL LIFT (Model 284 Only)
CHECK CHAINS (Extra Equipment)
OFFSET ADAPTER HITCH (EXTRA EQUIPMENT)
1. Fasten the Offset Adapter Hitch Weldment to the lift lugs using the Hitch Pin holes. Fasten the Adjustable Leg to the left side lug if the Mower is to offset to the left. The Mower will make a cleaner cut behind the wheel tracks if it is offset to...
2. Install the Brace Bars. Fasten the chain end to the rear mounting hole in the Gearbox Base Plate. Adjust the Brace Bar so the Hitch Assembly is nearly perpendicular.
3. Attach the Mower to the tractor. Install stabilizer bars or adjust sway chains to prevent side sway of the mower.
4. Raise the mower to check clearance between the Driveline and Mower Deck. Set the lift stop on the tractor to ascertain that the Driveline does not strike the deck.
ASSEMBLY SECTION
OPERATION SECTION
RHINO 260/272/284 ROTARY MOWER
OPERATION INSTRUCTIONS
1. Standard Equipment and Specification
260 272 284
2. OPERATOR REQUIREMENTS
3. TRACTOR REQUIREMENTS
Tractor Requirements and Capabilities
3.1 ROPS and Seat Belt
3.2 Tractor Safety Devices
3.3 Tractor Horsepower
3.4 3-Point Hitch
3.5 Front End Weight
3.6 Drawbar-Pull Type Mower
3.7 Power Take Off (PTO)
4. GETTING ON AND OFF THE TRACTOR
4.1 Boarding the Tractor
4.2 Dismounting the Tractor
5. STARTING THE TRACTOR
6. CONNECTING THE MOWER TO THE TRACTOR
6.1 Connecting Mower-Lift Type
1. Make sure the tractor is equipped with the correct PTO shaft. Change shafts if needed.
2. Shorten or remove the tractor drawbar to avoid interference when raising and lowering the mower.
3. Board the tractor and start the engine. Position the tractor to the mower with the 3-point lift arms positioned at the same height and to the outside of the mower hitch pins.
4. Turn off the tractor engine and dismount.
5. One lift arm at a time, align arm end hole between the set of A-frame lift lugs. Insert hitch pin through the lug and arm holes and insert retaining pin into hitch pin.
6. Walk around to opposite side and repeat procedure for remaining lift arm and hitch pin.
7. Extend or retract 3-point top link to align its end hole with the holes of the mower’s top link. Insert the top link hitch pin and insert retaining pin into hitch pin.
8. Adjust any lower link check chains, guide blocks, or sway blocks to prevent the mower from swaying side to side and possible contact with tractor rear tires.
6.2 3-Point Quick Hitch
6.3 Connecting Mower - Lift Type (Quick Hitch)
1. Make certain the implement’s upper and lower hitch pins are secured.
2. Lower the tractor’s 3-point lift until the three Quick-Hitch hooks are lower than the implements hitch pins. Carefully back the tractor to align the Quick-Hitch hooks under the implement’s hitch pins.
3. Slowly raise the tractor’s 3-point lift until the lower Quick-hitch hooks lock into place over the implement’s 3-point hitch pins.
1. Driveline length
2. Tractor stability
6.4 Safety Tow Chain
7. SETTING THE MOWER
7.1 Setting Mower Height- Lift Type - (Standard or Quick Hitch)
1. Park the tractor and mower on level ground.
2. Using the 3-point hitch control lever, position the front of the mower with the side skids 1” less off the ground than desired cut height. For example, for a 3” cut, position the skids 2” from the ground. Set the 3-point control lever stop a...
3. Shut down the tractor and remove the key.
4. Adjust the mower deck front to rear by extending or retracting the 3-point top link. Always set front of deck 3/4” lower than rear for best performance.
5. Level the mower side to side by manipulating one lower lift arm length. On most tractors, at least one of the lift arms is designed to allow for manipulation of its length. Shortening or extending will allow for deck leveling from side to side.
6. Securely block up the mower at this height.
7. Remove the bolts securing the tailwheel beam in position and allow the tailwheel to rest at ground level. Align tailwheel beam between nearest sets of holes in beam support brackets and reinstall support bolts on each side of beam. Tighten all bol...
8. Extend the tractor’s top 3-point link so that when lifting the mower, the front of the deck will raise 2 to 2½” before the tail wheel leaves the ground. This will allow the mower to follow the contour of uneven terrain.
7.2 Connecting the Mower-Pull Type
1. Make sure the tractor is equipped with the correct PTO shaft and the drawbar is extended 14” from the end of the PTO shaft to the hitch point.
2. Block the mower wheels in place and use the attached parking jack to raise or lower the tongue clevis to the height of the tractor drawbar. The parking jack can be rotated 15 degrees in each direction to obtain a near vertical position. Note: Alwa...
3. Board the tractor and start the engine. Back the tractor to the mower aligning the drawbar hitch hole with the mower hitch clevis. Turn off the engine, secure the tractor in position, and dismount.
4. To attach the mower, place two 1” flatwashers (1) positioned under top lip of tongue clevis and to the top of drawbar. Add additional 1” flatwashers (2) between the bottom of drawbar and bottom lip of clevis to fill open space. Insert a 3/4”...
5. Securely attach mower safety chain from mower tongue to tractor drawbar or drawbar support frame.
6. Lower the jack until the tongue is completely supported by the drawbar. Remove jack from the tongue and place on storage bracket of mower main frame.
7. If using a hydraulic cylinder, connect hydraulic hose ends into tractor hydraulic ports. Pressure may need to be relieved from the system to allow for ease of attachment.
8. If the mower has been attached to a 3-point hitch drawbar, adjust any tractor equipped lower link check chains, guide blocks, or sway blocks to prevent the hitch and mower from swaying side to side.
7.3 Setting Mowing Height-Pull Type
1. Park the tractor and mower on level ground.
2. Using the tailwheel ratchet jack or hydraulic cylinder, position the mower so the skid shoes are 1” less off the ground than the desired final cut height. For example, if a 3” cut is desired, raise or lower the mower until the skid shoes are 2...
3. Adjust the mower leveling rod so that the front of the mower is approximately 3/4” lower than the rear.
4. If the mower is attached to a 3-point hitch drawbar, adjust any tractor equipped lower link check chains, guide blocks, or sway blocks to prevent the hitch and mower from swaying from side to side. Never raise the 3-point lift with the mower attac...
7.4 Setting Deck Pitch
8. DRIVELINE ATTACHMENT
8.1 Driveline Length Check
9. PRE-OPERATION INSPECTION AND SERVICE
9.1 Tractor Pre-Operation Inspection/Service
9.2 Mower Pre-Operation Inspection/Service
9.3 Cutting Component Inspection
9.4 Blade Bolt Inspection
10. DRIVING THE TRACTOR AND IMPLEMENT
10.1 Starting the Tractor
10.2 Brake and Differential Lock Setting
10.3 Raising the Mower
10.4 Driving the Tractor and Mower
10.5 Crossing Ditches and Steep Inclines
10.6
11. OPERATING THE TRACTOR AND IMPLEMENT
11.1 Foreign Debris Hazards
11.2 Bystanders/Passersby Precautions
11.3 Engaging the Power Take Off (PTO)
11.4 PTO RPM and Ground Speed
11.5 Operating the Mower
11.6 Shutting Down the Implement
12. DISCONNECTING THE MOWER FROM THE TRACTOR
13. MOWER STORAGE
14. TRANSPORTING THE TRACTOR AND IMPLEMENT
14.1 Transporting on Public Roadways
14.2 Hauling the Tractor and Implement
15. TROUBLESHOOTING GUIDE
Problem Possible Cause Remedy
Check for loose nuts on TIghten if loose.
blade holder and blades.
Check for bent output shaft. Replace shaft if bent.
If shaft is bent, oil will
normally leak from bottom
seal.
Check to see if blades are Free blades so they swing.
free swinging.
Check for even wear on Weigh Blades. Weight should be within
each blade tip. Were both 1 oz. Always replace both blades.
blades changed at the same
time?
Blade Broken. Replace blades, in set.
Blade Carrier Bent. Replace carrier.
Blade hub not properly Remove hub, check tapered spline
seated on shaft. clean and replace.
New blade or bolts matched Replace blades or bolts in sets.
with worn blade or bolts.
Drivelines not phased correctly. Replace driveline.
Implement & tractor yokes must
be in line.
Carrier RPM too low. Use correct PTO speed and check for
correct gearbox ratio.
Cutter not level. See Cutting Height Adjustment.
Tractor tires mashing down grass. Reverse direction of cutting and drive
with right tractor tire out of cutter
overlap area. Conditions too wet to cut
Ground speed too fast. Reduce ground speed by shifting to a
lower gear.
Blades locked back. Free blades.
Blades riding up due to blade bolt Replace blade bolts.
wear or loose bolts.
Cutting height too high. Lower cut height as much as possible.
Bolt hole elongated or oversized. Replace Blade Carrier.
Locknut worn out. Replace Locknut.
Rough gears. Run in or change Gears.
Worn Bearing. Replace Bearing.
Bent Shaft. Replace Oil Seal and Shaft.
Oil Seal Race rough. Replace Shaft or repair Race.
Oil Seal installed wrong. Replace Seal.
Oil Seal not sealing in the housing. Replace Seal or use a sealant on O.D.
of Seal.
Oil level too high. Drain oil to proper level.
Gasket damaged. Replace Gasket.
Bolts loose. Tighten Bolts.
Sand hole in casting. Replace castings or gearbox.
Blades unable to cut that part of ground speed of tractor but keep
grass pressed down by path of engine running at full PTO wpm.
tractor tires. Lowering the cutting height may help.
Dull blades. Sharpen or replace blades.
Height of cutter lower at rear or See Cutting Height Instructions.
front.
Improper type lubricant. Replace with proper lubricant.
Excessive trash build-up around Remove trash.
gearbox.
Bearing or gears set up improperly. Consult your Dealer.
Excessively 540 RPM.
Heavy Material. Reduce ground speed. Raise cutting
height.
Not using proper pin. Replace only with recommended shear
pin.
PTO engaged at high engine RPM Idle engine to engage PTO
Cutting in rocky conditions Increase cutting height.
Blade carrier RPM too high. Check gearbox ratios.
Blades not properly heat treated. Consult your Dealer.
MAINTENANCE SECTION
Lubrication
GEARBOX (Model 260 & 284)
GEARBOX (Model 272)
TAIL WHEEL ASSEMBLY
DRIVELINE LUBRICATION
LIFT TYPE DRIVELINE & PULL JACKSHAFT SHIELDS
CV TYPE DRIVELINE
MAIN CV DRIVELINE SAFETY SHIELD
1. To remove the outer CV cone, remove the locking screws from shield cone. Remove cone over yoke. Remove bearing ring and remove the locking screws from inner shield cone. Turn inner cone to assembly position and remove half shield. Remove bearing r...
2. To assemble outer CV driveline, grease yoke groove and inner profile tube. Attach bearing ring on groove with recesses facing profile tube. Slide on half shield with cone. Turn cone until it engages correctly. Tighten locking screws. Grease bearin...
BLADE SERVICING
BLADE SHARPENING
BLADE CARRIER REMOVAL
BLADE CARRIER INSPECTION
BLADE CARRIER INSTALLATION
BLADE REMOVAL
SLIP CLUTCH
SEASONAL CLUTCH MAINTENANCE
1. Loosen nuts (Figure Mnt-R-0090) on springs until the springs are free, yet remain secure on bolts.
2. Attach cutter to tractor and start the tractor. Set the engine speed at 1200 RPM.
3. Mark outer plates as shown in Figure Mnt-R-0090.
4. Engage the PTO (approximately one second) and then quickly disengage it. The friction lining plates should break loose (check the mark).
5. Turn tractor off. Tighten the nuts on the disc spring clutch until Belleville spring is flat, then loosen each nut 2 turns
STORAGE
1. Thoroughly clean the cutter.
2. Lubricate the cutter as covered in Maintenance Section.
3. Tighten all bolts and pins to the recommended torque.
4. Check the cutter for worn or damaged parts. Make replacements immediately.
5. Place driveline in storage position resting on bracket.
6. Store the cutter in a clean, dry place with the cutter housing resting on blocks.
7. Use spray touch-up enamel where necessary to prevent rust and maintain the appearance of the cutter.
2. Tap around circumference of bearing housing (2) to loosen housing and shims. Then pull complete shaft (6) and housing assembly out of main housing.
3. Remove 4 capscrews (14), break gasket loose (11 & 12), and then remove the bearing retainer cap (18). (Mnt-R-0211)
4. Output shaft assembly must be removed from main housing by driving or pulling shaft out bottom end.
5. The gearbox is now disassembled into four (4) sub-assemblies:
6. Input shaft assembly
7. Output shaft assembly
8. Lower bearing retainer assembly
9. Main housing assembly
1. Housing
2. Lockwasher
3. Bolt
4. Input Cap
5. Input Shaft
6. Input Oil Seal
7. Shim (0.30)
8. Shim (0.50)
9. Input Gasket (0.10)
10. Input Gasket (0.25)
11. Gear Mounting Spacer
12. Output Spacer
13. Output Cap
14. Lockwasher
15. Bolt
16. Cotter Pin
17. Flanged Nut
18. Output Oilseal
19. Output Cap Gasket (0.10)
20. Output Cap Gasket (0.25)
21. Output Shaft
22. Bearing Assembly
23. 15 Tooth Gear
24. Bearing Adjusting Nut
25. Cotter Pin
26. Bearing Assembly
27. Drain Plug
28. Sealing Washer
29. Spacer
30. 24 Tooth Gear
31. Dip Stick
32. Output Seal Protector
RIGHT ANGLE GEARBOX (OUTBOARD) ASSEMBLY & DISASSEMBLY PROCEDURES
GEARBOX SERVICING (Model 272)
8. Slide Hammer Puller
9. Locktite #5900
10. Punch - Long Drift
11. Needle Nose Pliers
12. Screw Driver
13. External Snap Ring Pliers
14. Socket Wrench
15. 9/16 Socket
16. Ball Pin Hammer
17. Pry Bar
1. 1 Casing
2. 1 Crown Wheel
3. 2 Bearing
4. 1 Oil Seal
5. 1 Shaft
6. 2 Internal Clip
7. 2 Shim
8. 1 External Clip
9. 1 Nut
10. 1 Shim
11. 1 Protective Shield
12. 1 Oil Seal
13. 2 Bearing
14. 1 Shaft
15. 1 Bevel Pinion
16. 1 Cotter Pin
17. 1 Shim
18. 1 Plug
19. 1 Cap
20. 4 Hex Bolt
21. 1 Breather Dipstick
22. 1 Cover
23. 1 Shim
24. 1 Nut, Output Shaft
25. 1 Washer, Output Shaft
26. 1 Cotter Pin
260, 272, 284
ROTARY MOWER
RHINO
LIMITED WARRANTY
1. LIMITED WARRANTIES
1.01. Rhino warrants for one year from the purchase date to the original non-commercial, governmental, or municipal purchaser (“Purchaser”) and warrants for six months to the original commercial or industrial purchaser (“Purchaser”) that the ...
1.02. Manufacturer will replace for the Purchaser any part or parts found, upon examination at one of its factories, to be defective under normal use and service due to defects in material or workmanship.
1.03. This limited warranty does not apply to any part of the goods which has been subjected to improper or abnormal use, negligence, alteration, modification, or accident, damaged due to lack of maintenance or use of wrong fuel, oil, or lubricants, ...
1.04. Except as provided herein, no employee, agent, Dealer, or other person is authorized to give any warranties of any nature on behalf of Manufacturer.
2. REMEDIES AND PROCEDURES.
2.01. This limited warranty is not effective unless the Purchaser returns the Registration and Warranty Form to Manufacturer within 30 days of purchase.
2.02. Purchaser claims must be made in writing to the Authorized Dealer (“Dealer”) from whom Purchaser purchased the goods or an approved Authorized Dealer (“Dealer”) within 30 days after Purchaser learns of the facts on which the claim is based
2.03. Purchaser is responsible for returning the goods in question to the Dealer.
2.04. If after examining the goods and/or parts in question, Manufacturer finds them to be defective under normal use and service due to defects in material or workmanship, Manufacturer will:
(a) Repair or replace the defective goods or part(s) or
(b) Reimburse Purchaser for the cost of the part(s) and reasonable labor charges (as determined by Manufacturer) if Purchaser paid for the repair and/or replacement prior to the final determination of applicability of the warranty by Manufacturer.
2.05. Purchaser is responsible for any labor charges exceeding a reasonable amount as determined by Manufacturer and for returning the goods to the Dealer, whether or not the claim is approved. Purchaser is responsible for the transportation cost for...
3. LIMITATION OF LIABILITY.
3.01. MANUFACTURER DISCLAIMS ANY EXPRESS (EXCEPT AS SET FORTH HEREIN) AND IMPLIED WARRANTIES WITH RESPECT TO THE GOODS INCLUDING, BUT NOT LIMITED TO, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
3.02. MANUFACTURER MAKES NO WARRANTY AS TO THE DESIGN, CAPABILITY, CAPACITY, OR SUITABILITY FOR USE OF THE GOODS.
3.03. EXCEPT AS PROVIDED HEREIN, MANUFACTURER SHALL HAVE NO LIABILITY OR RESPONSIBILITY TO PURCHASER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY LIABILITY, LOSS, OR DAMAGE CAUSED OR ALLEGED TO BE CAUSED DIRECTLY OR INDIRECTLY BY THE GOODS INCLU...
3.04. NO ACTION ARISING OUT OF ANY CLAIMED BREACH OF THIS WARRANTY OR TRANSACTIONS UNDER THIS WARRANTY MAY BE BROUGHT MORE THAN TWO (2) YEARS AFTER THE CAUSE OF ACTION HAS OCCURRED.
4. MISCELLANEOUS.
4.01. Proper Venue for any lawsuits arising from or related to this limited warranty shall be only in Guadalupe County, Texas.
4.02. Manufacturer may waive compliance with any of the terms of this limited warranty, but no waiver of any terms shall be deemed to be a waiver of any other term.
4.03. If any provision of this limited warranty shall violate any applicable law and is held to be unenforceable, then the invalidity of such provision shall not invalidate any other provisions herein.
4.04. Applicable law may provide rights and benefits to purchaser in addition to those provided herein.
