Kubota ROPS Cab F 80 Series User manual

Kubota Fx80 Series ROPS Cab
** Shown with optional equipment
Kubota Fx80 Series ROPS Cab
This ROPS cab is designed and built to fit the Kubota F2880, F3080, and F3680.
Designed and Built by:
Tektite Manufacturing Inc:
427 Buffalo Street
P.O. Box 639
Winkler, MB
R6W 4A8
Canada
PH: 204-331-3463
Fax: [phone]
[email protected]
www.tektite.ca
One year standard product warranty provided by Tektite.
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

DO NOT PROCEED FURTHER UNTIL YOU HAVE READ THE INFORMATION BELOW
1) Always wear personal protective equipment
2) A minimum of two people is necessary to safely install the cab
3) This ROPS cab is heavy. A lift assist device such as an overhead
hoist or high lift forklift is required.
4) Ensure your work area is well ventilated. The installation
requires the starting of the tractor which will produce
dangerous carbon monoxide fumes.
5) Read through the entire installation manual first.
6) Follow the installation instructions in order.
7) Reading the operators manual prior to using the ROPS cab.

Tektite Manufacturing Incorporated thanks you for purchasing a Kubota Fx80 series ROPS cab!
Tektite has worked very hard to design and build this ROPS product and we hope that it
provides you with many years of ROPS protection.
Tektite’s ROPS products are designed to provide safe and dependable service during operation
when they are properly maintained according to the instructions. Please read this installation
manual carefully before installing and using this ROPS product.
The photos/illustrations provided in this manual may not provide all the detail needed, and are
for reference only.
All directions provided are from the reference point of the tractor seat facing the steering
wheel. All left and right references are from this view point.
For reference, please fill in the information below. This will assist your dealer in providing
service for this ROPS. It is advisable that this information be provided to your insurance
company as well in the event that the tractor is lost or damaged.
Vehicle Model: _________________________________________________________
ROPS Serial Number: ___________________________________________________
Date of Purchase: _______________________________________________________
Dealer Name: ___________________________________________________________
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

Parts List Standard Cab:
Description
Qty
Bolt, Flange, ½” x 1 ½”, Gr. 8, Yellow
4
Nut, Flange, Serrated, ½”, Gr. 8, Yellow
4
Under seat upholstery
1
Floor mat, operator platform
L&R
Push button fasteners
12
Bolt, Hex, ½” x 4 1/2”, Gr. 8
2
Cab Lift Brackets
2
Weather-stripping, 180° (pre-installed on cab)
19 LF
Weather-stripping, 180°
7”
Weather-stripping, 180°
5 5/8”
Weather-stripping, 180°
6 ¼”
Weather-stripping, 180°
3”
Weather-stripping, 180°
8 ½”
Weather-stripping, 180°
Two –4 ½”
Weather-stripping, 180°
Two –3 ½”
Weather-stripping, 180°
Two –4”
Floormat, 3" x 5"
1
Wire Loop, 1/4”, Yellow
2
Zip Ties, Standard
2
Parts List Optional Components:
Heater
Description
Qty
Elbow fitting, 3/8NPT x 3/8” barb (with A/C option only)
1
Straight fitting, 3/8NPT x 3/8” barb (with heater option only)
1
1/2”ID heater hose (3” long)
1
1/2” to 3/8” reducer
1
HS-10 hose clamps
2
HS-6 hose clamps
2
3/8” ID heater hose
25’ Long
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

Air Conditioning
Description
Qty
Bolt, Flange, 3/8” x 1 ½”, Gr. 8, Yellow
2
Nut, Flange, Serrated, 3/8”, Gr. 8, Yellow
5
Bolt, Hex, 3/8” x 2”, Gr. 8, Yellow
2
Bolt, Hex, 3/8” x 3 ½”, Gr. 8, Yellow
1
5/16” x 23” V-belt (25-7228)
1
7/16” x 42 5/8”V-belt (25-7420)
1
Nut, Flange, ¼”
2
Bolt, Flange, ¼” x ½”
2
Overflow Bottle Mount
1
Compressor Mount Bracket
1
Compressor Stabilizer Bracket
1
Alternator Stiffener Bracket
1
Bullet Connector, Female
1
Compressor, Top Port
1
Wire, 10GA, Red
8"
Wire, 16GA, White
8"
Wire, 16GA, Orange
8"
Shrinkwrap for wire, 1" long
6
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

Installation Instructions:
1. Remove two-post ROPS from machine. Save fasteners to re-use later. Remove the tractor
seat.
2. Remove the left and right floor skid pads at the front of the operator platform.
3. On the left side, centre punch and drill out the two fasteners that are there to a ½” diameter
hole. These will be the front left bracket mounting holes.
3a. Remove the two bolts shown below in the photo on both the left and right side.
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

October 2019©
Kubota Fx80 Series ROPS Cab Installation Manual
4. On the right side, centre punch and drill out the two fasteners that are there to a ½”
diameter hole. These will be the front right bracket mounting holes.
5. Take the 3” piece of 180°weather stripping for the brake lock pedal. Slide the o-rubber onto
the outside edge of sheet metal in the slot. This will provide a better seal for this pedal.
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

6. Take the 6 ¼” piece of 180° weather stripping for the differential lock pedal. Slide the o-
rubber onto the inside edge of sheet metal in the slot. This will provide a better seal for this
pedal.
7. On the right side of the machine, remove the handle end caps on all of the controls. Then
remove the plastic black shroud around the controls.
Use the next photo as reference for the next five weather stripping installs.
8. For the front left slot, take the 7” and 5 5/8” pieces of 180° weather stripping. Place the 7”
piece on the left side of the slot and the 5 5/8” piece on the right side of the slot.
9. For the front middle slot, take the 8 ½” piece of 180° weather stripping. Slide the bulb onto
the left side of the sheet metal.
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

10 For the front right slot, take the two 4 ½” pieces of 180° weather stripping. Slide the o-
rubber onto each side of the slot.
11. For the rear left slot, take the two 3 ½” pieces of 180° weather stripping. Slide the o-rubber
pieces onto each side of the slot.
12. For the rear right slot, take the two 4” pieces of 180° weather stripping. Slide the o-rubber
pieces onto each side of the slot.
13. Re-install the black plastic shroud.
14. Take the platform upholstery install onto the platform. Using high strength aerosol glue,
fasten into place, 3M High Strength 90 is recommended.
15. Remove the left and right cab doors. To remove the gas shock on the left cab door, slide a
flat screwdriver underneath the small clip on the end cap that must be pulled UP order to pop
the shock off of the ball stud. The shock will release very easily when this is accomplished. Lift
the door assembly straight up and off of the cab and put aside for now.. Install the lift brackets
through the ½” x 4 1/2” hex bolts into the lift weld nuts that are located at the top and rear of
the door openings.
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

16. Using a lift strap or chains, connect the two lift bolts to an over head hoist or forklift and lift
the cab off of the shipping pallet a couple feet.
17.Loosen the front and rear cab mounting brackets so that the brackets could move a little
prior to installation.
18.Lift the cab over the tractor.
19. Slowly lower down until the mounting brackets are sitting onto the operator platform. The
rear bracket will line up with the four mounting holes in the 2-post ROPS. The left and right
front brackets will align with the holes drilled in steps 3 and 4.
20. Re-use the 2-post fasteners and get the rear bracket fasteners started. Do not tighten, only
start the fasteners. The front brackets use ½” x 1 ½” flange bolts and nuts. Take the LEFT
platform support and position underneath the platform with the 1/2” bolts through the top.
The factory bolts removed earlier will go through the other holes in the support bracket onto
the chassis. Repeat for the right side.
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

21. Once all fasteners have been started, torque the rear bracket bolts to 102 ft-lbs. The ½”
fasteners can be torqued to 102 ft-lbs. The cab isolator fasteners can be torqued to 240 ft-lbs.
22. Remove the chain or lifting strap from the lifting bolts and remove the cab lift bolts.
23. Re-install the tractor seat.
24. Re-install the left and right cab doors.
25. Route the electrical harness into the hood area. Tie down as necessary to prevent
interference with moving components.
26. Connect the black 10GA wire to the tractor ground with the provided 1/4" loop connector.
Shorten wire if necessary, then solder connector directly onto wire.
27. Connect the red 10GA wire to a 12V power source on the starter with the provided 1/4"
loop connector. Shorten wire if necessary, then solder connector to wire.
28. Connect the orange wire to a switched 12V source on the alternator. Verify with test light,
then solder wire directly to the tractor wire. This wire powers a relay which when activated will
provide power to the cab.
29. Take the floor mat provided and place it into the operator platform. With the push buttons
provided, snap the floor mat into place. Left side shown only. Repeat for right side.
Power
Ground
Switched Source
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

Proceed with the following steps if the cab is equipped with a heater.
30. Drain the engine antifreeze.
31. NOTE: On the cab, the heater hose located against the glass is the pressure hose, and the
hose furthest away is the return hose.
32. The pressure fitting is located on the left side of the thermostat housing. Remove the plug.
Use water sealant material around the threads of the fitting to prevent water leaks. If cab is
equipped with air conditioner option, use the 3/8NPT x 3/8” barb elbow fitting and screw it
into the port. This is the pressure fitting. If cab is equipped with heater only option, use the
3/8NPT x 3/8” barb straight fitting and screw it into the port.
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

33. On the right side of the water pump there is a cap. Remove the cap. Slide the ½” ID heater
hose onto the steel pipe and attach with a hose clamp provided. Insert the 1/2-3/8 reducer at
the end of the hose. This is the suction fitting.
34. Locate the hoses on the left rear of the cab. Route the pressure hose towards the pressure
fitting. Ensure that the hose does not interfere with any moving parts. Cut the hose and then
connect it to the pressure fitting. Use zip ties to tidy up the hose. Use the provided HS-6 hose
clamps to secure the hose to the fitting. Route the other hose to the return fitting, ensuring
that it does not interfere with any moving parts. Cut any excess length, and connect to the
suction fitting with the provided HS-6 hose clamps.
35. Make sure all fitting connections are tight and the hoses are properly secured to the
machine. Re-fill the engine antifreeze. Go to the cab, and turn the heater control switch to the
maximum heat side. Start the engine and turn the cab fan to the highest speed setting. Take
the radiator cap off the engine and place a funnel into the radiator. Fill the funnel with
antifreeze. The engine will need to run for a few minutes and the thermostat open a few times
in order for all air to be purged from the heater system. The air at the cab louvers should be
very hot when that occurs. NOTE: ensure adequate fresh air ventilation in the work space you
are in, carbon monoxide from the engine exhaust is deadly.
36. To ensure a better seal of all weather stripping and floor mat pieces, it is recommended that
you use a black silicone seal to seal the cab parts to the tractor.
If cab is equipped with air conditioning, proceed with the following steps.
37. Remove the alternator and tensioner bracket from the engine, saving the fasteners to re-
use later.
38. Remove the engine lift ear at the front of the engine. Remove the over-flow bottle.
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

39. Disconnect the engine drive shaft, three bolts in order to remove the factory drive belt.
40. Replace the factory drive belt with the longer belt provided in the kit.
41. Take the compressor mounting bracket and position it where the alternator and tensioner
were located. Use the existing alternator tensioner fasteners to bolt the bracket into place.
Use the provided 3/8” x 3 ½” hex bolt at the former alternator bolt position and then take the
rear compressor support bracket with spacer welded to one end, and slide it onto the back of
this bolt with the welded spacer facing the front to ensure proper spacing for the compressor
when installed. Start the nut, but do not tighten. Note spacer is on the mower front side!!
Critical!!
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

42. Take the compressor and position it onto the mounting bracket. Using one 3/8” x 1 ½”
flange bolt and nut for the rear ear fastener, sliding the bolt in, in the direction shown below
through the rear compressor stiffener. Then use a 3/8" x 2" hex bolt and flange nut for the
front ear with the compressor bracket stiffener located on this ear fastener. loosely fasten the
two bottom ears onto the mounting bracket and rear compressor support bracket.
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

43. Slip the short v-belt onto the rear groove of the compressor. Slip the long belt onto the
front groove of the compressor.
44. Take a 3/8” x 1 ½” flange bolt and nut and start the tensioner fastener on the compressor.
Firmly fasten the two compressor ear pivot bolts first. Then, apply tension to the compressor in
order to properly tension the main engine drive belt and tighten the tensioner bolt.
45. Take the alternator and slide it into the alternator opening on the compressor bracket.
Slide the short belt onto the alternator before positioning as it will be very difficult afterwards.
For the alternator pin, use the provided 3/8” x 2” hex bolt and nut. Slide the bolt through the
pin, and then slide the alternator support bracket onto the back of the bolt and then loosely
fasten.
.
46. Re-using the alternator tensioner fastener for the tensioner position on the new bracket.
Tighten the pin fastener first, and then apply tension for the alternator and tighten fastener.
47. Loosen the engine wire harness tie down in order to re-connect the alternator to the engine
harness. It may be necessary to lengthen the sending unit wire in the harness if it is not long
enough. Wire and shrink-wrap are provided for lengthening the three wires going to the
alternator if necessary. Proceed with extending one wire at a time using the red 12 GA wire for
the heavy power wire in the harness, white wire for the white wire, and the orange wire for the
remaining wire. SOLDER and shrink wrap both ends of the wires.
48. Route the hoses along with the compressor clutch wire on the right side of the cab under
the hood and air intake filter. Install the hoses onto the compressor. Zip tie the hoses so that
they do not interfere with any moving parts on the engine.
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

49. Connect the white compressor clutch wire to the compressor.
50. Re-install the engine drive shaft.
51. On the right side of the engine, note the location of the fuse mount on the outside of the
radiator shroud. In-line with the top bolt hole, mark and drill a 5/16" hole, 3/4" from the bend.
Drill a second 5/16" hole, 1 1/8" below the first hole.
52 . Take the overflow bracket and slide the overflow bottle onto it. Position it on the inside of
the radiator shroud directly where the holes were previously driller. Use the provided ¼” x ½” x
flange bolts and nuts and fasten overflow bracket to engine sheet-metal.
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

53. Take the hoses going to the overflow bottle and re-route as shown in the photo above. The
bottom hose will hang below.
NOTE: At this stage, the air conditioning system is ready for pressurization. A licensed air
conditioner installer must perform the install. The air conditioning system is designed to use 2
lbs of R134a coolant.
June 2021© Kubota Fx80 Series ROPS Cab Installation Manual

Kubota Fx80 Series Cab
** Shown with optional equipment
June 2021© Kubota Fx80 Series ROPS Cab Operator Manual
Kubota Fx80 Series Cab
This ROPS cab is designed and built to fit the Kubota F2880, F3080, and F3680.
Designed and Built by:
Tektite Manufacturing Inc:
427 Buffalo Street
P.O. Box 639
Winkler, MB
R6W 4A8
Canada
PH: 204-331-3463
Fax: [phone]
[email protected]
www.tektite.ca
One year standard product warranty provided by Tektite.