MODEL GC31t-1 GRAIN CART ASSEMBLY READ MANUAL BEFORE BEGINNING ASSEMBLY Patented Single Auger Grain Carts J. & M. Mfg. Co., Inc. P.O. Box 547 Ft. Recovery, OH 45846 Ph: (419) 375-2376 Fax: (419) 375-2708 www.jm-inc.com (Rev.5.16.
GC31t-1 Grain Cart Assembly Through this assembly if the M10 x 25MM serrated flange hex bolts are not long enough in certain situations use the M10 x 35MM serrated flange hex bolts. STEP - 1 Tack Weld or Blue Sticker For stability set the axle weldment up on blocks using an overhead hoist and chain. The blue sticker or tack welds on the axle should face the front. For the axle and frame scale option installation instructions go to steps 3 & 4.
GC31t-1 Grain Cart Assembly STEP - 3 -Scale Option- Left Scale Bar Mount Weigh Bar (short side to the inside) 1”x 5” Bolt 1” Center Locking Nut 1”x 6” Bolt Axle Weldment 1”x 5” Bolt 1” Center Locking Nut Right Scale Bar Mount Set the axle weldment up on blocks. Insert four digistar weigh bars. Use 1” x 6” bolts to attach weigh bars to axle weldment. Make sure that the arrows on all of the weigh bars are pointing up. Attach the scale bar mounts to the weigh bars using 1” x 5” bolts.
GC31t-1 Grain Cart Assembly STEP - 5 M24 x 75 MM Bolt M24 Washer M24 Lock Nut Place the front leg onto the main frame using an overhead hoist. Use a drift pin to help line up the holes. Attach the front leg with (8) M24 x 75MM hex head bolts, M24 washers, and M24 nylon locking nuts. Note: Do not completely tighten. The legs will need to be able to slide for adjustment in a later step. STEP - 6 M24 x 75 MM Bolt M24 Lock Nut Place the rear leg onto the main frame using an overhead hoist.
GC31t-1 Grain Cart Assembly STEP - 7 3 Slots Attach the front rail. Use (8) M10 serrated flange bolts and (8) M10 serrated flange hex head nuts to attach the front rail to the front leg. STEP - 8 2 Slots Attach the rear rail. Use (8) M10 serrated flange bolts and (8) M10 serrated flange hex head nuts to attach the rear rail to the rear leg.
GC31t-1 Grain Cart Assembly STEP - 9 Attach opposite auger side rail (OAS). Use (4) M10 serrated flange nuts and (4) M10 serrated flange hex head nuts to attach the OAS to the front and rear rail. STEP - 10 Attach Auger Side (AS) Rail. Use (4) M10 serrated flange nuts and (4) M10 serrated flange hex head nuts to attach the AS rail to the front and rear rails.
GC31t-1 Grain Cart Assembly STEP - 11 Measure- Measure from corner to corner on the rails. Reposition the front leg to get the measurements to be within 1/8” - 1-4” (3mm-6mm) of each other. Once completed, tighten all bolts to ensure that the structure remains square. (Do not tighten bolts on the front leg.) STEP - 12 Attach front rail cross brace. Use (29) M10 serrated flange hex head bolts and (29) M10 serrated hex flange nuts.
GC31t-1 Grain Cart Assembly STEP - 13 Attach rear rail cross brace. Use (21) M10 serrated flange hex head bolts and (21) M10 serrated hex flange nuts. Do NOT insert bolts into holes that are surrounded by squares in the figure above. STEP - 14 Attach the two AS Slope Gussets and two OAS Slope Gussets using (12) 8.8 M10 x 25 MM serrated flange hex head bolt and M10 serrated flange hex head nuts. !STOP! It is important to have all bolts and nuts tightened at this point.
GC31t-1 Grain Cart Assembly STEP - 15 Attach the front lower panel to the front leg as shown. Use (2) temporary M10 serrated flange bolts to hold the front lower panel in place. Insert bolts into the two holes that are circled. STEP - 16 Attach the rear bottom panel to the rear leg as shown. Use (2) temporary M10 serrated flange bolts to hold the rear bottom panel into place.
GC31t-1 Grain Cart Assembly STEP - 17 Attach the OAS lower middle panel. Use (5) 8.8 M10 x 25 MM serrated flange hex head bolts and (5) M10 serrated flange hex head nuts to attach the OAS lower middle panel. Only insert hardware into the holes that are inside the outlined area in the figure above. STEP - 18 Attach the AS lower middle panel. Remove the 2 temporary bolts and use (10) 8.8 M10 x 25 MM serrated flange hex head bolts and (10)M10 serrated flange hex head nuts to attach the AS lower middle panel.
GC31t-1 Grain Cart Assembly STEP - 19 Attach the front AS lower middle panel. Use (6) 8.8 M10 x 25 MM serrated flange hex head bolts and (6) M10 serrated flange hex head nuts. Only insert hardware into the holes that are inside the outlined area in the figure above. For the scale option leave out hardware that is inside of the circle. STEP - 20 Attach the front OAS lower middle panel. Remove the two temporary bolts and use (11) 8.
GC31t-1 Grain Cart Assembly STEP - 21 Attach the OAS bottom panel. Use (1) 8.8 M10 x 25 MM serrated flange hex head bolts and (1)M10 serrated flange hex head nuts to attach the OAS bottom panel. Insert the hardware into the hole that is highlighted in the outlined area in the above figure. STEP - 22 Attach the OAS bottom panel. Use (1) 8.8 M10 x 25 MM serrated flange hex head bolt and (1) M10 serrated flange hex head nut to attach the OAS bottom panel.
GC31t-1 Grain Cart Assembly STEP - 23 Attach the Front and Rear Tank Reinforcements. Use (26) M10 x 25 MM serrated flange hex head bolts and (26) M10 serrated flange hex head nuts to attach the Front and Rear Tank Reinforcements. Do not insert bolts that are highlighted in the outlined area. STEP - 24 Attach the Bottom Panel Corners. Use (12) 8.8 M10 x 25 MM serrated flange hex head bolts and (12) M10 serrated flange hex head nuts to install the Bottom Panel Corners.
GC31t-1 Grain Cart Assembly STEP - 25 Attach the Wheel Well Corners. Use (4) 8.8 M10 x 25 MM serrated flange hex head bolts and (4) M10 serrated flange hex head nuts. Do not insert hardware into the holes that are inside of the outlines in the figure above. STEP - 26 Attach the AS and OAS Wheel Wells. For the OAS Wheel Well use (16) 8.8 M10 x 25 MM serrated flange hex head bolts and (16)M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area.
GC31t-1 Grain Cart Assembly STEP - 27 Attach the OAS Front Lower Middle Panel. Use (24) 8.8 M10 x 25 MM serrated flange hex head bolts and (24) M10 serrated flange hex head nuts for installation. Do not insert hardware into the holes that are inside of the outlined area in the figure above. STEP - 28 Attach the AS Front Lower Middle Panel. Use (23) 8.8 M10 x 25 MM serrated flange hex head bolts and (23) M10 serrated flange hex head nuts for installation.
GC31t-1 Grain Cart Assembly STEP - 29 Attach the Rear AS Lower Middle Panel. Use (17) 8.8 M10 x 25 MM serrated flange hex head bolts and (17) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above. STEP - 30 Attach the Rear OAS Lower Middle Panel. Use (17) 8.8 M10 x 25 MM serrated flange hex head bolts and (17) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above.
GC31t-1 Grain Cart Assembly STEP - 31 Attach the Front AS Upper Middle Panel. Use (18) 8.8 M10 x 25 MM serrated flange hex head bolts and (18) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above. STEP - 32 Attach the Front OAS Upper Middle Panel. Use (18) 8.8 M10 x 25 MM serrated flange hex head bolts and (18) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above.
GC31t-1 Grain Cart Assembly STEP - 33 Attach the AS Front Upper Middle Panel. Use (25) 8.8 M10 x 25 MM serrated flange hex head bolts and (25) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above. STEP - 34 Attach the Rear OAS Upper Middle Panel. Use (21) 8.8 M10 x 25 MM serrated flange hex head bolts and (21) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above.
GC31t-1 Grain Cart Assembly STEP - 35 Attach the AS Rear Upper Middle Panel. Use (27) 8.8 M10 x 25 MM serrated flange hex head bolts and (27) M10 serrated flange hex head huts for installation. Do not insert hardware into the outlined area in the figure above. STEP - 36 Attach the OAS Front Upper Middle Panel. Use (23) 8.8 M10 x 25 MM serrated flange hex head bolts and (23) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above.
GC31t-1 Grain Cart Assembly STEP - 37 Attach the OAS Center Upper Middle Panel. Use (23) 8.8 M10 x 25 MM Serrated flange hex head bolts and (23) M10 Serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above. STEP - 38 Attach the OAS Rear Upper Middle Panel. Use (27) 8.8 M10 x 25 MM Serrated flange hex head bolts and (27) M10 Serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure below.
GC31t-1 Grain Cart Assembly STEP - 39 Attach the Rear Sheddar Panels. Use (34) 8.8 M10 x 25 MM serrated flange hex head bolts and (34) M10 serrated flange hex head nuts for installation. STEP - 40 Attach the clean out door mount using (2) M10 x 25MM serrated flange hex head bolts and (2) M10 serrated flange hex nuts.
GC31t-1 Grain Cart Assembly STEP - 41 Attach the junction box and display screen mounts. Use (4)M10 x 25 MM bolts to mount them both. Attach the battery box walls with (2) M10 x 25 serrated hex head bolts and (2) M10 nylon locking Nuts. Next attach the battery box strap with (2) M10 x 50MM hex bolts and (2) nylon insert locknuts. Now Attach the scale monitor bracket with (2) M6 x 20MM hex head bolts and (2) M6 nylon locking nuts.
GC31t-1 Grain Cart Assembly STEP - 43 Using an overhead hoist, lift the bottom tube assembly using the lifting hook hole. This should help set the appropriate angle for laying the assembly into the tank. STEP - 44 Using an overhead hoist, lift the bottom tube assembly into the front left corner of the grain cart. Lower the bottom tube assembly until the two corners that are circled in the figure to the right to go below the tank assembly.
GC31t-1 Grain Cart Assembly STEP - 45 Attach the gearbox top plate. Use (12) M10 x 25MM serrated hex head bolts and (12) M10 serrated hex flange nuts to attach the gearbox top plate to the shell assembly. STEP - 46 1 3 2 Attach the {1} rear slope splice plate & the {2} side slope splice plate. Use (14) M10 x 25MM serrated hex head bolts and (14) M10 serrated hex flange nuts to attach them to the gearbox assembly. Attach the {3}inside sheddar panel splice plate.
GC31t-1 Grain Cart Assembly STEP - 47 Attach the Shedder Panel/ Gearbox Splice Plate. Use (14) 8.8 M10 x 25 MM serrated hex head bolts and (14) M10 serrated hex nuts. (M10 x 35 SF may be needed for some of the holes.) STEP - 48 Attach the AS Front Top Panel. Use (14) 8.8 M10 x 25 MM serrated flange hex head bolts and (14) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above.
GC31t-1 Grain Cart Assembly STEP - 49 Attach the AS Center Top Panel. Use (19) 8.8 M10 x 25 MM serrated flange hex head bolts and (19) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above. STEP - 50 Attach the AS Rear Top Panel. Use (8) 8.8 M10 x 25 MM serrated flange hex head bolts and (8) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above.
GC31t-1 Grain Cart Assembly STEP - 51 Attach the OAS Front Top Panel. Use (14) 8.8 M10 x 25 MM serrated flange hex head bolts and (14) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above. STEP - 52 Attach the OAS Center Top Panel. Use (19) 8.8 M10 x 25 MM serrated flange hex head bolts and (19) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above.
GC31t-1 Grain Cart Assembly STEP - 53 Attach the OAS Rear Top Panel. Use (8) 8.8 M10 x 25 MM serrated flange hex head bolts and (8) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above. STEP - 54 Attach the Front AS Top Panel. Use (9) 8.8 M10 x 25 MM serrated flange hex head bolts and (9) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area -28in the figure above.
GC31t-1 Grain Cart Assembly STEP - 55 Attach the Front OAS Top Panel. Use (10) 8.8 M10 x 25 MM serrated flange hex head bolts and (10) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above. STEP - 56 Attach the Rear AS Top Panel. Use (24) 8.8 M10 x 25 MM serrated flange hex head bolts and (24) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above.
GC31t-1 Grain Cart Assembly STEP - 57 Install the Rear OAS Top Panel. Use (26) 8.8 M10 x 25 MM serrated flange hex head bolts and (26) M10 serrated flange hex head nuts for installation. Do not insert hardware into the outlined area in the figure above. STEP - 58 Install the clean out door. Use (4) M10 x 25MM serrated hex head bolts and (4) M10 serrated hex flange nuts to attach the clean out door to the shell assembly.
GC31t-1 Grain Cart Assembly STEP - 59 4 Install the following items: 1. (3) Side Gussets 2. Fender Well Wall Support Brace 3. OAS Slope Brace 4. Rear Slope Brace. Use (56) 8.8 M10 x 25 MM serrated hex head bolts and (56) M10 serrated hex nuts. Use (1) M12 hex head bolt and (1) M12 serrated hex nut in the outlined area. 1 2 3 STEP - 60 5 3 Install the following items: 1. (3)Side Gussets 2. Tank Screen Support Brace 3. Front Side Gussets 4. AS Front Slope Brace 5. Front Slope Brace Use (52) 8.
GC31t-1 Grain Cart Assembly STEP - 61 Install the Tank Screen. For the tank screen cross braces use (4) M12 x 25 MM serrated hex head bolts and (4) M12 serrated hex flange nuts. To assemble the short tank screen towards the rear of the cart use (6) 8.8 M10 x 25 MM serrated hex head bolts and (6) M10 serrated hex nuts. STEP - 62 Install all three cross braces. Use (15) 8.8 M12 x 25 MM serrated hex head bolts and (15) M12 serrated hex nuts.
GC31t-1 Grain Cart Assembly STEP - 63 Install front to back cross brace. Use (4) M12 x 25MM serrated flange hex head bolts and (4) serrated hex head nuts to attach the front to back cross brace. Use (4) more to attach the side supports for the cross brace. Where the two front and back cross braces connect them with an M12 x 300 MM all thread bolt and (4) M12 hex head locking nuts. STEP - 64 Install the AS Small Front Panel and the Front Top Panel. Use (10) 8.
GC31t-1 Grain Cart Assembly STEP - 65 Install the High Front Sideboard. Use (14) 8.8 M10 x 25 MM serrated hex head bolts and (14) M10 serrated hex nuts STEP - 66 Install the High Rear Sideboard. Use (11) 8.
GC31t-1 Grain Cart Assembly STEP - 67 Install the Rear End board. Use (16) 8.8 M10 x 25 MM serrated hex head bolts and (16) M10 serrated hex nuts STEP - 68 Install the Low Rear Sideboard. Use (11) 8.8 M10 x 25 MM serrated hex head bolts and (11) M10 serrated hex nuts.
GC31t-1 Grain Cart Assembly STEP - 69 Install the Low Front Sideboard. Use (11) 8.8 M10 x 25 MM serrated hex head bolts and (11) M10 serrated hex nuts. STEP - 70 Install the Front End board. Use (20) 8.8 M10 x 25 MM serrated hex head bolts and (20) M10 serrated hex nuts.
GC31t-1 Grain Cart Assembly STEP - 71 50.5 cm 67.6 cm Install all of the Sideboard Corners. Use (34) 8.8 M10 x 25 MM serrated hex head bolts and (34) M10 serrated hex nuts. 20.3 cm 99.7 cm STEP - 72 Install the ear mount pads. Use (8) M16 x 45 MM bolts and (8) M16 locking nuts to attach the ear mount pads to the front leg.
GC31t-1 Grain Cart Assembly STEP - 73 Install front leg support braces. Use (12) M16 x 45 hex head bolts, (12) M16 washers, and (12) M16 nylon locking nuts. Use (2) M30 x 120MM bolts and (2) M30 Nuts to attach the front leg support brace to the front leg. STEP - 74 Install the driveshaft assembly with (16) M16 x 45 MM bolts and locknuts without flanges. Only use washers on bolts and nuts for end of plates that bolt onto the main frame weldment.
GC31t-1 Grain Cart Assembly STEP - 75 Install the ladder assembly. First attach the ladder brackets to the front panels. Use (2) M10 x 25MM serrated hex head bolts and (2) M10 locking nuts. Now install the ladder. Attach the top of the ladder to the brackets using (2) M10 x 25MM serrated hex head bolts and (2) M10 locking nuts. Use the same hardware to attach the ladder to the bottom brackets which are welded to the frame. Right Ladder Bracket STEP - 76 Install drive line shield.
GC31t-1 Grain Cart Assembly STEP - 77 Install all three windows. The top window assembly consists of the window and window seal. The front and rear lower windows take (4) M10 x 25MM serrated hex head bolts and (4) M10 locking nuts, window, window seal, (2) inner brackets, and (2) outer brackets. Start by inserting the window seal into the opening followed by the window. Then attach both the inner and outer brackets with their hardware.
GC31t-1 Grain Cart Assembly STEP - 79 Install the Sideboard Brace. Use (12) M10 serrated hex head bolts and (12) serrated hex nuts to attach the sideboard brace gussets. To install the brace use (4) M12 serrated hex head bolts and (4) serrated Hex nuts. STEP - 80 Adjustable Auger Rest Pad Adjustable Auger Rest Install the adjustable auger rest pad. Use (4) M10 x 25 MM serrated hex head bolts and (2) M10 serrated hex flange nuts. Next attach the adjustable auger rest.
GC31t-1 Grain Cart Assembly STEP - 81 Install the auger top tube assembly and pivot pin with M16 x 45 MM hex bolts and nylon lock nuts extra large washers and lock washers. Be sure to match numbers that are welded on the hinge plates of both the bottom and top tub assemblies (if top tube has a 7 it goes with the bottom tube that has a 7). Now set the adjustable auger rest. Once it is set drill through the remaining four holes and use (4) M10 x 40 MM hex head bolts, (4) washers, and (4) nylon lock nuts.
GC31t-1 Grain Cart Assembly STEP - 83 M12 x 50 MM bolt goes on the top and bottom of the flow control spout Use an overhead hoist and lift strap to install the flow control spout assembly. Use (2) M12 x 50MM bolts and hex locknuts. Do not overtighten. The flow control spout assembly needs to be able to pivot freely. STEP - 84 Install the hydraulic hose holder tank bracket. Use (2) M10 x 25MM serrated hex head bolts and (2) M10 serrated hex flange nuts to attach the hose holder to the tank assembly.
GC31t-1 Grain Cart Assembly STEP - 85 Install the PTO slip clutch assembly. The PTO shaft will need to be shortened depending on the distance between the tractor PTO shaft and the cart drive line shaft. STEP - 86 Install the hubs and spindles with 1” x 8” hex head bolt and center lock nuts.
GC31t-1 Grain Cart Assembly STEP - 87 Install the wheels and tires with 3/4” lug nuts. Be sure to tighten and monitor lug nuts to make sure that they stay tight. STEP - 88 Install the jack and the black manual holder. The manual holder is to be attached on the auger side of the pto guard. If there are not holes there already, drill as needed. Use the manual holder to mark your holes. Drill through holes for an M6 bolt.
GC31t-1 Grain Cart Assembly STEP - 89 4 5 Ground (White Wire) Field Light (Black Wire) Amber Flashing & Turn Signal (Yellow Wire) Tail Light (Brown Wire) Amber Flashing & Turn Signal (Green Wire) # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Main Wiring Harness with 7-Prong Connector End Light Enhancer Wiring Harness for Rear Lights (Each) Extendable Amber Light Assembly (Right Side) Extendable Amber Light Assembly (Left Side) Rear Red Light, Right Side Rear Red Light , Left Side Mercury Switch Fie
GC31t-1 Grain Cart Assembly STEP - 90 -Non-Scale Option1” x 4-1/2” Hex Bolt 2-1/2” Spindle Collar 2-1/2” Hitch Spindle 2-1/2” Sleeve 1” Centerlock Hex Nut Hitch Plate Weldment 3/4” x 3” Hex Bolt 1” x 7-1/2” Hex Bolt Hitch Weldment Assemble the Hitch Spindle Sleeve and Hitch Weldment. Use a 1.0” x 7-1/2” Hex Bolt and a 1” Centerlock Hex Nut to fasten the two together. Next attach the Hitch plate Weldment to the grain cart’s A - frame. Use (8) 3/4”-16 x 3.
GC31t-1 Grain Cart Assembly STEP - 91 -Scale Option- 1” x 6” Grd 5 Bolt *Right & Left determined by facing the rear of cart. Feed the Weigh Bar wire through the left side of the A-frame, exiting out the grommet hole directly behind the front leg weldment. Use 3/4” x 3” Gr 5 bolts to attach the Weigh Bar Weldment to the A-frame. Swivel Hitch 1”x 4 1/2” Grd 5 Bolt Weigh Bar Weldment Weigh Bar Carefully slide the Weigh Bar into the Weigh Bar Weldment and attach it with 1” x 4 1/2” Gr 5 Bolt and locknut.
GC31t-1 Grain Cart Assembly STEP - 92 -Scale OptionLeft Rear Right Front Left Front Left Front Indicator Right Rear Right Front Indicator Hitch Left Rear Hitch Right Rear Insert all of the wires into the Junction Box according to the diagram above. Connect the wires to the terminal of the Junction Box by matching the colored wires.
GC31t-1 Grain Cart Assembly STEP - 93 Attach two 1/4” x 29” (736.6mm) hydraulic hoses from the shut off gate cylinder to the tank bulkhead couplings. Attach two 1/4” x 160” (4,064mm) hydraulic hoses from the tank bulkhead couplings to the tractor.. STEP - 94 Install the 1/4” x 206” hose to the bottom (closest) end of cylinder. Install the 1/4” x 222” hose to the top (farthest) end of cylinder.
GC31t-1 Grain Cart Assembly STEP - 95 -Slider Option# 1 2 3 3 4 5 Description 1/2” X 1 1/2” Clevis pin w/ cotter pin 1/4” St.
GC31t-1 Grain Cart Assembly STEP - 97 -Slider Option- # 1 2 3 4 5 6 Length 14” (355,6m) 53.50” (1358,9m) 9.75” (247,6m) 13” (330,2m) 73” (1854,2) 50.50” (1282,7m) 3 2 1 4 5 6 Attach all of the hoses for the slider option. Attach hose’s accordingly to the image above. STEP - 98 -Slider Option- For the slider option the diverter valve will need to be installed. Bolt the diverter valve in place using (2) M10 serrated hex bolt and (2) M10 serrated hex head nuts.
GC31t-1 Grain Cart Assembly STEP - 99 Decal Location -53-
GC31t-1 Grain Cart Assembly STEP - 99 Decal Location -54-
GC31t-1 Grain Cart Assembly STEP - 99 Decal Location STEP - 2 (Top Side of Top Tube) -55-
