Page 1
Rev. D, p. 1 of 12 KUBOTA B2650/3350 Hard Sided Cab p/n 1KB33AS Soft Sided Cab p/n 1KB33SS Installation Instructions The contents of this envelope are the property of the owner. Be sure to leave with the owner when installation is complete.
2 of 12 DESIGN CONCEPT Curtis cabs feature an assembly of parts designed for your vehicle which require adjustment and alignment of components to accommodate vehicle variations and provide proper weather protection. For accurate installation, proper operation, and years of satisfaction, please read and understand the installation instructions.
Page 3
p. 3 of 12 1. VEHICLE PREP 1.1 Per fig. 1.1, remove the following five (5) items from the tractor: the optional tool box and clamps from the roll bar (if equipped), both grab handles, and both turn signal lights from the fenders (identify the wires for easier re-connection later).
Page 4
p. 4 of 12 3. HARD REAR PANEL hard rear Note: this is a separately purchased option on soft sided cabs. panel It’s a standard included item on hard sided cabs. If installing on a SS cab, remove snaps from rear edge of roof. If not installing a hard rear panel, skip to step 4 below.
Page 5
p. 5 of 12 SIDE FRAME (cont’d.) 5.2 Per fig. 5.2, use the following hardware installed horizontally into the front of the side frame tubing (into factory installed threaded inserts): three 5/16 x 3/4” long button head bolts, three nylon washers, and three steel washers.
Page 6
p. 6 of 12 6. WINDSHIELD SUPPORT 6.1 See fig. 6.1. With assistance, install the windshield support to the top front corner of the side frames oriented as shown with the bent flanges on the bottom. In the low- leave empty for now er holes only, use the following hardware per side frame: one 5/16 x 1”...
Page 7
p. 7 of 12 8. ROOF Use a Phillips head screwdriver to punch a hole ref.: reflectors are back here through the headliner at any of the covered bolt hole lo- cations (8 places). Punch holes from the inside out to avoid having the headliner pull away from its glued sur- face.
Page 8
p. 8 of 12 10. REAR CURTAIN 2” wide inner surface If installing a hard rear panel, skip this step and continue of side frame rear with step 11 below. vertical tube 10.1 Assemble the six (6) snaps on the rear curtain to the six (6) snaps on the back side of the roof.
Page 9
p. 9 of 12 12. DOORS 12.1 Apply grease to the pin hinges. With assistance, re -install the doors onto the pin hinges. Work the doors back and forth until the hinges are completely seated. If necessary, specific adjustments can be made per the steps below.
Page 10
p. 10 of 12 13. TURN SIGNAL LIGHTS 13.1 Per fig. 13.1, re-install the turn signal light to the both washers and nut on this side welded bracket on the back side of the side frames. Use the supplied wires to connect to the existing wiring un- derneath the fender (see fig.
Page 11
11 of 12 KUBOTA B2650 HARD SIDED CAB PARTS LIST WINDSHIELD ROOF QTY. QTY. 8SV-CI02 ROLL BAR 8SV-KB2301A-O3 ORANGE MOUNTS QTY. REFLECTORS 8SV-KB3305-B4 RAVEN T1 SEAM BULB HINGES RUBBER TYPES: LOGO ARCH PSA 3/4" SIDE BULB (20') 2 PCS.,...
Page 12
12 of 12 KUBOTA B2650 SOFT SIDED CAB PARTS LIST WINDSHIELD ROOF QTY. QTY. 8SV-CI02 ROLL BAR 8SV-KB2301-O3 ORANGE MOUNTS QTY. REFLECTORS 8SV-KB3305-B4 RAVEN T1 SEAM BULB SNAPS (6) (INSIDE) HINGES RUBBER TYPES: LOGO ARCH PSA 5/8" SIDE BULB 2 PCS.,...