LifeTrac II Part Sourcing

Video of Tractor and Frame assembly in William's second month Dedicated Project Visits report:

Cut List

Square tube:

• 4 × 7'8"×4"×4" tubes for base
• 3 × 5'×4"×4" under base tubes
• 2 × 52"×4"×4" vertical chassis centre tubes
• 2 × 55"×4"×4" vertical chassis tubes for front corners
• 2 × 59"×4"×4" vertical chassis tubes for rear corners (PC mounting area)
• 2 × 84"×4"×4" top chassis tubes
• 3 × 44"×4"×4" top chassis tubes

Rounds:

• 4 × 28"×1-7/8" axle shafts
• 4 × 54"1-7/8" loader shafts
• 2 × 100"×6"×2" front loader arm tubes
• 2 × 84"×6"×2" rear loader arm tubes
• 12 × 8" dom to mount loader shafts to loader arms.
• 1-7/8"bore bushing tubing to mount loader arm shafts to frame
• 1"bore tubing for 8 bushings to connect h/cylinders to loaders
• plate to mount bushings to loader arms

Plate:

• 12 × 10"×8"×0.5" steel plates to mount flange bearings and hydraulic motors to
• 2 × 12"×12"×1/2" plate to mount h/cylinders to base
• 4 × 32"diameter × 9" wheels
• 1/2"plate & 1-15/16"tubing to make wheel mounts

Other

• [16] thrust bearings - in the form of large washers with 1-7/8" hole.
• [8] double-split shaft collars, 1-7/8"

Bolts

Functionality list:

• [40] 3/4x5-1/2", with [40] washers for one side and [40] metal lock nuts for the other side. For wheel plates & cylinder plates.
• [42] 3/4"x9" bolts, [80] washers, and [40] metal lock nuts. This is for the assembly of the main frame.
• [16] 1/2"x2" bolts + [16] nylon lock nuts + [16] lock washers to suit. Motor attachment to motor interface plate. These could be 2" studs, as these are welded to the motor interface plate.
• [8] 3/4"x2" bolts for motor; [8] nuts to weld; [8] lock washers. Attachment of motor interface plate to frame.
• [32] 5/8"x2"bolts + [32] metal lock nuts, [32] lock washers to suit. Mounting of bearings to frame.
• [32] 9/16"x2" fine thread bolts, [32] washers, [32] nylon lock nuts. Attachment of wheel to wheel hub. Includes studs, nuts, and washers.
• [4] 3/4"x4.5" bolts; [8] nuts; [4] nylon lock nuts. Mounting of wheel bushings to wheel shafts.

TOTALS:

• [40] 3/4"x5.5" bolts
• [42] 3/4"x9" bolts
• [4] 3/4"x4.5" bolts
• [8] 3/4"x2" bolts
• [120] 3/4" washers
• [80] 3/4" metal lock nuts
• [16] 3/4" nuts
• [4] 3/4" nylon lock nuts
• [8] 3/4" lock washers

• [16] 1/2"x2" bolts
• [16] 1/2" nylon lock nuts
• [16] 1/2" lock washers

• [32] 5/8"x2" bolts
• [32] 5/8" metal lock nuts
• [32] 5/8" lock washers

• [32] 9/16"x2" bolts
• [32] 9/16" washers
• [32] 9/16" nylon lock nuts

Hydraulics

Parts from Surplus Center:

Wheel bearings

Front loader cylinder

Front loader cylinder fittings

Rear loader cylinder

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Rear loader cylinder fittings

Quick attach plate cylinder

Wheel motors

Wheel motor fittings

File:Lt2wheelmotorcdfittings.jpg

Wheel motor case drain fittings

Spline coupler, female part

Spline shaft, male

Wheel motor shaft coupler

Shaft collars, 3 per wheel

2 spool motor valve, 25 gpm

5 spool valve, 20 gpm

Cushion valve for front and rear loaders

1/2 inch NPT swivel

1/2 inch NPT nip

Half inch tee

Pressure relief valve for Power Cube

Spline shaft, male

Functionality list:

• [8] flange Bearings - [1]
• [2] Front Loader cylinders - 36" - $174 - 48 5/8" retracted length - [2]
• [4] 3/8 NPTM x 1/2 NPTF 90 SWIVEL [3] for Front Loader Cylinders
  • 4.9 square inch area at 2500 PSI implies 12000 lb of force for each cylinder
• [0] Rear loader cylinders - [4]
• [0] SAE 8M x 1/2 NPTF 90 SWIVEL [5] for Rear Loader Cylinders
• [6] 4 Quick Attach (QA) plate & 2 Rear Loader hydraulic cylinders [6]
• [12] 3/8 NPTM x 1/2 NPTF 90 SWIVEL [7] for QA Plate Cylinder
• [4] Motors - [8] + [8] SAE M 10 to NPT M 1/2" [9]
• [4] 1-1/4" shaft couplers - [10]
• [1] 1-3/8" 6T fully splined shafting - [11]
• [2] Female 1-3/8" 6T spline coupling - [12], $30 each
• [12] 1.875" double split shaft collars - [13]

Valves:

• [0] 4 SPOOL SV VALVE OPEN CENTER (configured) - [14]
  • Good idea, but only 12 gpm rated
• [0] 4-1/2 spool control valve with one motor spool - [15], $300
  • [0?] single handle kits [16]
    • Check if this works, plus get correct fittings. [17] may work to connect one valve directly to other.
• [1] 3-spool motor valve, 25 gpm - [18], $288
• [2] 3/4"-1/2" reducer bushing - [19] for motor valve inlet and outlet.
• [?] 1/2" NPT M to NPT M 90deg Elbow for all working port valves [20]
• [0] Two spool Prince Control Valves [21]
• [0] Power Beyond kit [???] Power Beyond Sleeves [22]
• [2] 1/2 NPT 30 GPM 1500-3000 PSI HYD CUSHION VALVES - [23]

More:

• [4] 1/2 NPTM x 1/2 NPTF SWIVEL [24] for cushion valve
• [4] 1/2" nip - [25], $1.35 for ???
• [8] NPTF Tee [26]- 4 for loaders, 4 for QA plates
• [1] Pressure relief for power cube bypass- [27]
• [1] - tee for bypass
• Quick Couplers & Tips (need to select Q.C. to Swivel ratio);
  • [2] for Power Cube (PC) ?1/2"? [28]
  • [8] 1/2" for Motors [29]
  • [4] 1/4" for motors [30] or [31]
  • [13?] 1/2" for valves [32]
  • [4] 3/4" quick couplers for valve inlets and outlets [33]
• hoses [34]
• [1] Tractor Seat [35]

• (what have i missed?)