SPECIFICATIONS. General Specifications. Dimensions

Transcription

1 General s Engine RPM Setting Spark Plug TX Ser # / CH20S Ser # / CH20S Ser # / CH20S Ser # / CH20S Kohler Command Pro Series Model CH20, 2 cylinder, 20 horsepower, 12 VDC solenoid shift starter, 15 amp alternator No-load Speed 3600 rpm ± 75 rpm Low idle Speed 1200rpm ± 200 rpm Champion Premium Gold 2071 or Champion RC12YC or equivalent Air Gap: (0.76mm) Oil Capacity 2 quarts (1.9 liters) 2 quarts (1.9 liters) Fuel Tank 6 gallons (22.7 liters) 6 gallons (22.7 liters) TX Ser # / CH25S Ser # / CH730S-0072 Ser # / CH730S-0132 Ser # / CH730S-0162 Kohler Pro Command Pro Series Model CH730, 2 cylinder, 25 horsepower, 12 VDC solenoid shift starter, 15 amp alternator No-load Speed 3600 rpm ± 150 rpm Low idle Speed 1400 rpm ± 200 rpm Champion Premium Gold 2072 or Champion RC12YC or equivalent Air Gap: (0.76mm) Dimensions TX 420 TX 425 Overall Length, without Bucket 70.7 (179.6cm) 70.7 (179.6cm) Overall Length, with Bucket 92 (233.7cm) 92 (233.7cm) Overall Width 33.7 (85.6cm) 41 (104.1cm) Overall Height 46.1 (117.1cm) 46.1 (117.1cm) Overall Operating Height, Fully Raised 90.1 (228.9cm) 90.1 (228.9cm) Reach, Fully Raised 21.8 (55.4cm) 21.8 (55.4cm) Reach Maximum 37 (94cm) 37 (94cm) Dump Angle 38º 38º Dump Height 46.1 (117.1cm) 46.1 (117.1cm) Bucket Rollback, Ground Position 23º 23º Bucket Rollback, Carry Position 23º 23º Bucket Rollback, Fully Raised 85º 85º Wheel Base 31.1 (79cm) 31.1 (79cm) Ground Clearance Maximum 4.6 (11.7cm) 4.6 (11.7cm) Dingo TX420, TX425 Series Service Manual Rev

2 Periodic Maintenance s Maintenance Interval Grease General purpose grease 8 operating hours Hydraulic Oil TX420 serial # hours* Mobil 424 or equivalent / 10w-30-15w-40 TX420 & TX425 serial # w-30 or 15w-40 API service CH4 or higher diesel engine oil Hydraulic Filter Toro OEM filter 8 hours initial, 200 hours thereafter Engine Oil Kohler OEM filter 50 hours initial & 100 hours thereafter* Engine Air Filter Kohler OEM filter 25 hours clean & 100 hours replace* Note: Refer to Section X and the TX420, TX425 and engine operator manuals for additional information. * More often in dusty, dirty conditions. Performance TX420 Tip Capacity 1480 lbs. (671.3kg) (per SAE J732) Operating Capacity 500 lbs. (226.8kg) (35% of tip per SAE J818) Speed Weight mph (0-7.2km/hr) forward 0-2 mph (0-3.2km/hr) reverse 1880 lbs. (852.8kg) (traction unit only) 2006 lbs. (909.9kg) (w/dingo standard bucket) Performance TX425 Tip Capacity 1427 lbs. (647.3kg) (per SAE J732) Operating Capacity 500 lbs. (226.8kg) (35% of tip per SAE J818) Speed Weight mph (0-7.2km/hr) forward 0-2 mph (0-3.2km/hr) reverse 2060 lbs. (934.4kg) (traction unit only) 2186 lbs. (991.5kg) (w/dingo TX bucket) 2-2 Rev. 000 Dingo TX420, TX425 Series Service Manual

3 Hydraulic System TX420 Gear Pump Loader Valve Auxiliary Valve Hydrostatic Pumps Wheel Motors Lift Cylinders Dump Cylinder A two-section tandem gear pump powers the loader and auxiliary hydraulic systems. Section 1 (Auxiliary): rpm (42.4 liter/min) Section 2 (Loader): rpm (20.8 liter/min) A two-spool monoblock valve controls loader functions via a single lever joystick. Main Relief Setting: 2400 psi (165.5 bar) Loader Spool: a 4-position spool with closed, raise, lower, and float positions controls loader functions. Tilt Spool: A 3-position spool with 3000 psi (206.8 bar) work port reliefs controls the dump/curl cylinder functions. A single spool valve controls the auxiliary flow to the Dingo TX attachments. The valve is actuated by single-step motion lever for forward and reverse-detent positions. Main Relief Setting: 3000 psi (206.8 bar) The traction circuit is powered by dual hydrostatic pumps in a closed loop system. The hydrostatic pumps are belt driven off of the auxiliary drive shaft on the front of the engine. The circuit charge pressure is supplied by a 5 psi (.34 bar) check valve in the loader pump return circuit. The pumps have service bypass valves for towing and have shock valves to limit circuit pressure spikes. The pumps are mechanically actuated by the Dingo TX traction control system. Pump Displacement: 1.28 in 3 /rev (3.25cm 3 /rev) Pump Speed: 3050 rpm through pulley 3600 engine rpm Shafts:.669 (1.7cm) diameter tapered shaft with 7/16 (1.1cm) threaded end Pulleys: Cast ductile iron 3V pulleys TX420 & TX425 serial # & lower do not have a shock valve relief TX420 & TX425 serial # Shock Valve Relief: 3000 psi (206.8 bar) Two LSHT motors directly drive the track drive wheels. Displacement: 32.3 in 3 /rev (82cm 3 /rev) Mounting: Standard wheel mounting TX420 (22306) serial # Shaft: 1 1/4 (3.17cm) tapered shaft with 1.0 (2.54cm) threaded end TX420 (22306) serial # Shaft: 1 3/8 (3.5cm) tapered shaft with (2.9cm) threaded end The lift circuit has 2 hydraulic cylinders that control loader height. Bore Size: 1.75 (4.4cm) Rod Size: 1.0 (2.5cm) Stroke: 18.4 (46.7cm) Working Pressure: 3000 psi (206.8 bar) The Quick-Attach angle is controlled by a single hydraulic cylinder. Bore Size: 2.75 (7cm) Rod Size: 1.25 (3.2cm) Stroke: 7.75 (19.7cm) Working Pressure: 3000 psi (206.8 bar) Dingo TX420, TX425 Series Service Manual Rev

4 Hydraulic System TX420 cont. Tank Filter The hydraulic tank is a fabricated weldment integrated into the main frame. The tank has a cleanout access, stainless screens at the fill and suction ports and a remote breather connected via hose. Capacity: 10.5 gallons (39.7 liters) Model serial # uses a nylon molded replaceable hydraulic tank. This tank does not have a drain. The oil needs to be drawn out using suction. The tank has stainless steel screens at the fill and suction ports and is vented through the cap. Capacity: 8 gallons (30.27 liters) In addition to the in-tank screens, the loader circuit passes through a 10 micron spin-on filter prior to returning to tank. Electrical System TX420 Battery Gauges Fuel Shut Off Ignition Fuses 12 volt, BCI group 55 battery with 585 CCA The control panel contains a combo hour meter/tachometer and a fuel gauge. Model serial # utilized an hour meter only. Carburetor solenoid The ignition switch is panel mounted with STOP-RUN-START positions. The machine has a fuse block with 4 separate fuses, 10, 15, 25 and 30 amp. Track System TX420 Track Drive Wheel Road Wheels The tracks are Kevlar reinforced, endless rubber rings with 28 internal drive lugs. The outer tread on the tracks is a turf-friendly S-shaped pattern with pitched crosscuts. Track Width: 5.88 (14.9cm) Track Pitch: 3.45 (8.8cm) The drive wheels are single-piece, austempered ductile iron, squirrel cage castings. The wheels are mounted directly onto the tapered shafts of the wheel motors. Wheel Diameter: (29.5cm) No. of Teeth:eter 11 Constant track ground pressure is maintained by 20 ductile iron road wheels. The road wheels each have a sealed bearing that are protected by a secondary dirt seal on the inside and a gasketed steel cap on the outside. 2-4 Rev. 000 Dingo TX420, TX425 Series Service Manual

5 Hydraulic System TX425 Gear Pump Loader Valve Auxiliary Valve Hydrostatic Pumps Wheel Motors Lift Cylinders Dump Cylinder A two-section tandem gear pump powers the loader and auxiliary hydraulic systems. Section 1 (Auxiliary): rpm (42.4 liter/min) Section 2 (Loader): rpm (20.8 liter/min) A two-spool monoblock valve controls loader functions via a single lever joystick. Main Relief Setting: 2400 psi (165.5 bar) Loader Spool: A 4-position spool with closed, raise, lower, and float positions controls loader functions. Tilt Spool: A 3-position spool with 3000 psi (206.8 bar) work port reliefs controls the dump/curl cylinder functions. A single spool valve controls the auxiliary flow to the Dingo TX attachments. The valve is actuated by single-step motion lever for forward and reverse-detent positions. Main Relief Setting: 3000 psi (206.8 bar) The traction circuit is powered by dual hydrostatic pumps in a closed loop system. The hydrostatic pumps are belt driven off of the auxiliary drive shaft on the front of the engine. The circuit charge pressure is supplied by a 5 psi (.34 bar) check valve in the loader pump return circuit. The pumps have service bypass valves for towing and have shock valves to limit circuit pressure spikes. The pumps are mechanically actuated by the Dingo TX traction control system. Pump Displacement: 1.28 in 3 /rev (3.25cm 3 /rev) Pump Speed: 3050 rpm through pulley 3600 engine rpm Shafts:.669 (1.7cm) diameter tapered shaft with 7/16 (1.1cm) threaded end Pulleys: Cast ductile iron 3V pulleys TX420 & TX425 serial # & lower do not have a shock valve relief TX420 & TX425 serial # Shock Valve Relief: 3000 psi (206.8 bar) Two LSHT motors directly drive the track drive wheels. Displacement: 32.3 in 3 /rev (82cm 3 /rev) Mounting: Standard wheel mounting TX425 (22307) serial # Shaft: 1 1/4 (3.17cm) tapered shaft with 1.0 (2.54cm) threaded end TX425 (22307) serial # Shaft: 1 3/8 (3.5cm) tapered shaft with (2.9cm) threaded end The lift circuit has 2 hydraulic cylinders that control loader height. Bore Size: 1.75 (4.4cm) Rod Size: 1.0 (2.5cm) Stroke: 18.4 (46.7cm) Working Pressure: 3000 psi (206.8 bar) The Quick-Attach angle is controlled by a single hydraulic cylinder. Bore Size: 2.75 (7cm) Rod Size: 1.25 (3.2cm) Stroke: 7.75 (19.7cm) Working Pressure: 3000 psi (206.8 bar) Dingo TX420, TX425 Series Service Manual Rev

6 Hydraulic System TX425 cont. Tank Filter The hydraulic tank is a fabricated weldment integrated into the main frame. The tank has a cleanout access, stainless screens at the fill and suction ports and a remote breather connected via hose. Capacity: 10.5 gallon (39.7 liters) In addition to the in-tank screens, the loader circuit passes through a 10 micron spin-on filter prior to returning to tank. Electrical System TX425 Battery Gauges Fuel Shut Off Ignition Fuses 12 volt, BCI group 55 battery with 585 CCA The control panel contains a combo hour meter/tachometer and a fuel gauge. Carburetor solenoid The ignition switch is panel mounted with STOP-RUN-START positions. The machine has a fuse block with 4 separate fuses, 10, 15, 25 and 30 amp. Track System TX425 Track Drive Wheel Road Wheels The tracks are Kevlar reinforced, endless rubber rings with 28 internal drive lugs. The outer tread on the tracks is a turf-friendly S-shaped pattern with pitched crosscuts. Track Width: 9.5 (24cm) Track Pitch: 3.45 (8.8cm) The drive wheels are single-piece, austempered ductile iron, squirrel cage castings. The wheels are mounted directly onto the tapered shafts of the wheel motors. Wheel Diameter: (29.5cm) No. of Teeth:eter 11 Constant track ground pressure is maintained by 20 ductile iron road wheels. The road wheels each have a sealed bearing that are protected by a secondary dirt seal on the inside and a gasketed steel cap on the outside. 2-6 Rev. 000 Dingo TX420, TX425 Series Service Manual

7 Torque Torque s s Fastener Identification Recommended fastener torque values are listed in the following tables. For critical applications, as determined by Toro, either the recommended torque or a torque that is unique to the application is clearly identified and specified in the service manual. 2 These torque specifications for the installation and tightening of fasteners shall apply to all fasteners which do not have a specific requirement identified in the service manual. The following factors shall be considered when applying torque: cleanliness of the fastener, use of a thread sealant (Loctite), degree of lubrication on the fastener, presence of a prevailing torque feature, hardness of the surface underneath of the fastener s head, or similar condition which affects the installation. As noted in the following tables, torque values should be reduced by 25% for lubricated fasteners to achieve the similar stress as a dry fastener. Torque values may also have to be reduced when the fastener is threaded into aluminum or brass. The specific torque value should be determined based on the aluminum or brass material strength, fastener size, length of thread engagement, etc. (A) Grade 1 (B) Grade 5 Figure 1 Inch Series Bolts and Screws (C) Grade 8 The standard method of verifying torque shall be performed by marking a line on the fastener (head or nut) and mating part, then back off fastener 1/4 of a turn. Measure the torque required to tighten the fastener until the lines match up. Figure 2 Metric Bolts and Screws (A) Class 8.8 (B) Class 10.9 Dingo TX420, TX425 Series Service Manual Rev

8 Standard Torque for Dry, Zinc Plated, and Steel Fasteners (Inch Series) Thread Size Grade 1, 5, & 8 with Thin Height Nuts SAE Grade 1 Bolts, Screws, Studs, & Sems with Regular Height Nuts (SAE J995 Grade 2 or Stronger Nuts) SAE Grade 5 Bolts, Screws, Studs, & Sems with Regular Height Nuts (SAE J995 Grade 2 or Stronger Nuts) SAE Grade 8 Bolts, Screws, Studs, & Sems with Regular Height Nuts (SAE J995 Grade 2 or Stronger Nuts) In-lb In-lb N-cm In-lb N-cm In-lb N-cm # 6-32 UNC 15 ± ± ± ± ± 2 13 ± ± 23 # 6-40 UNF 17 ± ± ± ± 20 # 8-32 UNC 29 ± ± ± ± ± 2 25 ± ± 30 # 8-36 UNF 31 ± ± ± 4 31 ± 3 # UNC 42 ± ± ± ± ± 2 30 ± ± 56 #10-32 UNF 48 ± ± ± ± 70 1/4-20 UNC 48 ± 7 53 ± ± ± ± ± ± 170 1/4-28 UNF 53 ± 7 65 ± ± ± ± ± ± 170 5/16-18 UNC 115 ± ± ± ± ± ± ± 340 5/16-24 UNF 138 ± ± ± ± ± ± ± 340 ft-lb ft-lb N-m ft-lb N-m ft-lb N-m 3/8-16 UNC 16 ± 2 16 ± 2 22 ± 3 30 ± 3 41 ± 4 43 ± 4 58 ± 5 3/8-24 UNF 17 ± 2 18 ± 2 24 ± 3 35 ± 3 47 ± 4 50 ± 4 68 ± 5 7/16-14 UNC 27 ± 3 27 ± 3 37 ± 4 50 ± 5 68 ± 7 70 ± 7 68 ± 9 7/16-20 UNF 29 ± 3 29 ± 3 39 ± 4 55 ± 5 75 ± 7 77 ± ± 9 1/2-13 UNC 30 ± 3 48 ± 7 65 ± 9 75 ± ± ± ± 14 1/2-20 UNF 32 ± 3 53 ± 7 72 ± 9 85 ± ± ± ± 14 5/8-11 UNC 65 ± ± ± ± ± ± ± 27 5/8-18 UNF 75 ± ± ± ± ± ± ± 27 3/4-10 UNC 93 ± ± ± ± ± ± ± 47 3/4-16 UNF 115 ± ± ± ± ± ± ± 47 7/8-9 UNC 140 ± ± ± ± ± ± ± 81 7/8-14 UNF 155 ± ± ± ± ± ± ± 81 Note: Reduce torque values listed in the table above by 25% for lubricated fasteners. Lubricated fasteners are defined as threads coated with a lubricant such as oil, graphite, or thread sealant such as Loctite. Note: Torque values may have to be reduced when installing fasteners into threaded aluminum or brass. The specific torque value should be determined based on the fastener size, the aluminum or base material strength, length of thread engagement, etc. Note: The nominal torque values listed above for Grade 5 and 8 fasteners are based on 75% of the minimum proof load specified in SAE J429. The tolerance is approximately ± 10% of the nominal torque value. Thin height nuts include jam nuts. 2-8 Rev. 000 Dingo TX420, TX425 Series Service Manual

9 Standard Torque for Dry, Zinc and Steel Fasteners (Metric Series) Standard Torque for Dry, Zinc, and Steel Fasteners (Metric Fasteners) Thread Size Class 8.8 Bolts, Screws, and Studs with Regular Height Nuts (Class 8 or Strong Nuts) Class 10.9 Bolts, Screws, and Studs with Regular Height Nuts ( Class 10 or Strong Nuts) M5 X ± 5 in-lb 640 ± 60 N-cm 78 ± 7 in-lb 885 ± 80 N-cm M6 X ± 9 in-lb 1018 ± 100 N-cm 133 ± 13 in-lb 1500 ± 150 N-cm M8 X ± 2 ft-lb 26 ± 3 N-m 27 ± 2 ft-lb 36 ± 3 N-m M10 X ± 4 ft-lb 52 ± 5 N-m 53 ± 5 ft-lb 72 ± 7 N-m M12 X ± 7 ft-lb 90 ± 10 N-m 92 ± 9 ft-lb 125 ± 12 N-m M16 X ± 15 ft-lb 225 ± 20 N-m 229 ± 22 ft-lb 310 ± 30 N-m M20 X ± 33 ft-lb 440 ± 45 N-m 450 ± 37 ft-lb 610 ± 50 N-m Note: Reduce torque values listed in the table above by 25% for lubricated fasteners. Lubricated fasteners are defined as threads coated with a lubricant such as oil, graphite, or thread sealant such as Loctite. Note: The nominal torque values listed above are based on 75% of the minimum proof load specified in SAE J1199. The tolerance is approximately ± 10% of the nominal torque value. Thin height nuts include jam nuts. Note: Torque values may have to be reduced when installing fasteners into threaded aluminum or brass. The specific torque value should be determined based on the fastener size, the aluminum or base material strength, length of thread engagement, etc. Dingo TX420, TX425 Series Service Manual Rev

10 Other Torque s SAE Grade 8 Steel Set Screws Recommended Torque Thread Size Square Head Hex Socket 1/4-20 UNC 140 ± 20 in-lb 73 ± 12 in-lb 5/16-18 UNC 215 ± 35 in-lb 145 ± 20 in-lb 3/8-16 UNC 35 ± 10 ft-lb 18 ± 3 ft-lb 1/2-13 UNC 75 ± 15 ft-lb 50 ± 10 ft-lb Thread Size 7/16-20 UNF Grade 5 1/2-20 UNF Grade 5 M12 X 1.25 Class 8.8 M12 X 1.5 Class 8.8 Wheel Bolts and Lug Nuts Recommended Torque** 65 ± 10 ft-lb 88 ± 14 N-m 80 ± 10 ft-lb 108 ± 14 N-m 80 ± 10 ft-lb 108 ± 14 N-m 80 ± 10 ft-lb 108 ± 14 N-m ** For steel wheels and non-lubricated fasteners. Thread Cutting Screws (Zinc Plated Steel) Thread Cutting Screws (Zinc Plated Steel) Thread Size Type 1, Type 23, or Type F Baseline Torque* Thread Size Threads per Inch Type A Type B Baseline Torque* No UNC No UNC No UNC 20 ± 5 in-lb 30 ± 5 in-lb 38 ± 7 in-lb No ± 5 in-lb No ± 5 in-lb No ± 7 in-lb 1/4-20 UNC 85 ± 15 in-lb 5/16-18 UNC 110 ± 20 in-lb 3/8-16 UNC 200 ± 100 in-lb No ± 15 in-lb * Hole size, material strength, material thickness and finish must be considered when determining specific torque values. All torque values are based on nonlubricated fasteners. Conversion Factors in-lb X N-cm ft-lb X = N-m N-cm X = in-lb N-cm X ft-lb 2-10 Rev. 000 Dingo TX420, TX425 Series Service Manual

11 Equivalents and Conversions Decimal and Millimeter Equivalents Fractions Decimals mm Fractions Decimals mm 1/ / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / mm = in in. = mm Dingo TX420, TX425 Series Service Manual Rev

12 Linear Measurement Area Volume Weight U.S. to Metric Conversions To Convert Into Multiply By Miles Yards Feet Feet Inches Inches Inches Square Miles Square Feet Square Inches Acre Cubic Yards Cubic Feet Cubic Inches Tons (Short) Pounds Ounces Kilometers Meters Meters Centimeters Meters Centimeters Millimeters Square Kilometers Square Meters Square Centimeters Hectare Cubic Meters Cubic Meters Cubic Centimeters Metric Tons Kilograms Grams Pressure Pounds/Sq. In. Kilopascal Work Liquid Volume Foot-pounds Foot-pounds Inch-pounds Quarts Gallons Newton-Meters Kilogram-Meters Kilogram-Centimeters Liters Liters Liquid Flows Gallons/Minute Liters/Minute Temperature U.S. to Metric Conversions Fahrenheit Celsius 1. Subtract Multiply by 5/ Rev. 000 Dingo TX420, TX425 Series Service Manual