A-12142 HEATER KIT With Diesel Engine Connection Fittings Figure 1 (General Layout and Parts I.D.) Page 1 of 6
Read these instructions and identify all components. Please retain these instructions for future reference and parts ordering information. Refer to kit components and Figure 1 for general layout. Note: Cab kit A-11858 must be installed prior to installing this kit! Kit Components: ITEM QTY P/N DESCRIPTION 1 1 3-17100 PUSH/PULL CABLE 2 8 3-16629 NYLON TIE 3 2 3-19594 NYLON TIE WITH 1/4" RETAINER 4 3 3-17517 NYLON TIE MOUNT PSA BACK 5 1 3-18819 PULL FOR HEAT DECAL 9 1 4-15815 HEATER ASSEMBLY 10 1 3-20137 Y-FITTING, 1.125" 11 1 3-11220 VALVE, SHUT-OFF 12 2 3-13442 HOSE CLAMP, LARGE, #16 13 1 1-49570 HOSE, ELBOW, 5/8" X 16" LG 14 1 3-12119 FITTING, BRASS, 3/8" NPT TO 5/8" HOSE BARB 15 1 3-20284 FITTING, ALUMINUM 16 4 3-10858 HOSE CLAMP, #10 17 4 3-16217 WASHER, RUBBER, GLASS 18 4 3-18187 WASHER, FENDER, 5/16" 19 4 3-19335 BOLT, 5/16"x1.00" LONG, TORX BUTTON HEAD 20 1 3-18259 NUT, JAM M16-1.5 21 2 3-16823 O-RING 22 1 3-16057 FUSE, BLADE TYPE, 10 AMP 23 1 3-20500 WINDOW, FRONT RH ACRYLIC 24 3 3-11255 P-CLAMP, DUAL HOSE 25 3 3-19338 BOLT, 5/16"x1/2" LONG, TORX BUTTON HEAD 26 3 3-20329 NUT, NYLOCK FLANGE, 5/16" 27 1 3-10704 DUCT, PLASTIC LOOM,.350 ID X 76" LONG 28 1 3-10364 WIRE, RED 14 GA, 76" LONG 29 2 3-10670 TERMINAL CONNECTOR, 14 GA X 1/4" BLADE FM 30 1 3-10345 WIRE, BLACK 14 GA, 76" LONG Preparation of Tractor; 1. Park tractor on level surface and turn ignition key off. 2. Allow engine to cool. Drain coolant from radiator. Mounting the heater unit; 3. Remove lower RH front window from cab and remove seals from window. 4. Install seals onto new acrylic window (23) (Figure 2). 5. Apply pull for heat decal (5) onto acrylic window (23) 7/16 hole location (Figure 2). 6. Install push/pull cable (1) into acrylic window (23) 7/16 hole and secure to window using hardware supplied with push/pull cable (Figure 2). 7. Secure heater assembly (9) onto the inside surface of the acrylic window (23) using (Figure 2); (4) 5/16 x 1.00 button torx head bolts (19) (4) 5/16 rubber washers (17) (4) 5/16 fender washers (18) 8. Install new window with seals and heater unit onto lower RH front cab location. Page 2 of 6
STEP 6 BUBBLE SIDE STEP 5 STEP 4 STEP 7 ITEM 23 Figure 2 STEP 11 STEPS 12 & 16 STEPS 13 &15 STEP 10 STEPS 14 & 17 Figure 3 Figure 4 Supply connection from engine to heater unit; 9. Locate temperate sensor near engine s thermostat area. Remove temperature sensor with washer. 10. Thread M16 jam nut (20) onto M16 male thread on aluminum fitting (15), to the fitting shoulder (Figure 3). 11. Thread 4-way O-ring washer (21) onto M16 male thread on aluminum fitting (15) (Figure 3). 12. Disconnect engine temperature sensor wire and remove engine temperature sensor (Figure 4). 13. Install aluminum fitting with O-ring and nut, into sensor port until O-ring makes contact (Figure 4) Thread tape may be used. 14. Orientate fitting so that the brass fitting (14) for the heater hose can be easily installed (Figure 4). 15. Using the M16 jam nut, unscrew the nut until the nut makes contact with the O-ring and becomes tight, preventing the aluminum fitting from rotating (Figures 4 & 5). Page 3 of 6
INSTALLATION INSTRUCTIONS 16. Re-install temperature sensor with remaining rubber O-ring, into the end of aluminum fitting (15) (Figures 4 & 5). Thread tape may be used. 17. Install brass fitting (14) into aluminum fitting side using thread seal tape (Figures 4 & 5). 18. Connect 5/8 x 17.00 long heater hose elbow (13) to brass fitting (14) and secure using a small hose clamp (16). 19. Connect shut-off valve (11) to remaining end of 5/8 x 17 long heater hose elbow (13) and secure using a small hose clamp (16) as show in Figure 5. Connect valve as shown. 20. Select one of the two 5/8 heater hose from heater assembly (6) to remaining end of shut-off valve (8) and secure using a small hose clamp (13). 21. Connect push/pull cable (1) loop end to shut-off valve (11) and secure using hardware supplied with valve. To heater STEP 16 (INSTALL SENSOR) STEP 21 STEP 17 STEP 19 STEP 18 STEP 20 FLOW FROM ENGINE PORT Figure 5 Return connection from heater unit to engine (Figure 6); 22. Locate lower radiator hose. Cut hose and install the Y-fitting (10) as shown in Figure 6. 23. Secure using large hose clamps (11). 24. Connect remaining end of 5/8 heater hose from heater assembly (9) to 5/8 nipple on Y-fitting (10) and secure using small hose clamp (11). STEP 24 From heater STEPS 22 & 23 To engine STEPS 22 & 23 From radiator Figure 6 Connecting power; 25. Using a wire crimping tool, extend heater unit to wires harness using both red (28) and black (30) wires supplied with kit. Route wires upward to overhead switch panel. 26. Remove (4) over head switch panel bolts and lower switch panel. Page 4 of 6
INSTALLATION INSTRUCTIONS 27. Select an empty fuse block location and connect red wire (28) using a ¼ female terminal connector (29) to selected location. 28. Connect black wire (30) to ground terminal located on fuse block ground bar using a ¼ female terminal connector (29). 29. Install protective wire loom (27) over wires. 30. Install 10 amp fuse (22) into selected location from step 27. Completing Installation; 31. Refill radiator. 32. Start tractor and turn heater switch on and off to check blower operation. 33. Pull and push cable several times to activate valve and allow coolant to circulate through the heater. 34. Shut engine off and check coolant. This may take several attempts to purge all the air from the system. Securing heater hoses; 35. Measure 4 inches from front window and secure heater hoses together using (Figure 5); (1) Double P-clamp (24) (1) 5/16 x 1/2 long bolt (25) (1) 5/16 hex flange nylock nut (26) 36. Secure remaining locations of heater hoses together and to frame use existing holes already in the frame. Secure to frame using (Figure 6); (2) Double P-clamp (24) (2) 5/16 x 1/2 long bolt (25) (2) 5/16 hex flange nylock nut (26) STEP 36 STEP 35 Figure 7 Figure 8 37. Secure loose wires and hoses using nylon ties supplied with kit. Do not secure wires or hoses to high pressure fuel lines, hot surfaces or moving components. Note: Shut-off valve should be in the OFF position when heat is not needed. If overhead panel is wired correctly, the heater fan should turn off when ignition key is turned off. MODEL FUEL HP BRAND TRANS ALTERNATOR SOURCE RETURN CONNECTION AMPS CONNECTION 2520 DIESEL 26.4 YANMAR 4WD 40 M16 SENSOR PORT LOWER RADIATOR HOSE Y 2025R DIESEL 24.2 YANMAR 4WD 20 M16 SENSOR PORT LOWER RADIATOR HOSE Y 2720 DIESEL 31.4 YANMAR 4WD 40 M16 SENSOR PORT LOWER RADIATOR HOSE Y 2032R DIESEL 31.7 YANMAR 4WD 40 M16 SENSOR PORT LOWER RADIATOR HOSE Y Installation is now complete. If you have any questions or comments, contact; Revised instructions 10-10-14 by CAD; Added jam nut (20) & aluminum fitting (15) was 3-17262. Revised instructions 12-16-14 by CAD; Added (1) additional O-ring, 3-16823. Page 5 of 6
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