TRX-20 Trencher. Model No G Serial No and Up * * A. Register at Original Instructions (EN)

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1 Form No Rev A TRX-20 Trencher Model No Serial No and Up Model No G Serial No and Up Register at Original Instructions (EN) * * A

2 Ordering Replacement Parts To order replacement parts, please supply the part number, the quantity, and the description of each part desired. Understanding Reference Numbers Each identified part in an illustration has a reference number. The reference number for a part also appears in the parts list, along with other information about the part. This catalog uses two special reference number formats, one to indicate parts in a service assembly and another to indicate the quantity of a given part in an illustration. Service Assembly Reference Numbers Parts in service assemblies have reference numbers in the form a:b. The a represents the reference number of the entire service assembly and the b represents a sequential number unique to each part within the service assembly. For example, a wheel assembly might be identified by reference number 6, the tire by 6:1, the valve by 6:2, and the wheel by 6:3. When you order the assembly identified by reference number 6, you receive all parts identified by reference numbers 6:1,6:2, and 6:3. However, you may also order any part individually. Reference numbers of this type appear in illustration and in parts lists. Reference Numbers Indicating Quantity In an illustration, if a reference number indicates more than one part, the reference number has the form nx y. The n represents the quantity of the part, the X is the multiplication symbol, and the y represents the reference number. For example, in an illustration, the reference number 2X 37 means that two of the parts identified by reference number 37 are indicated. List of Abbreviations AR: as required ASM: assembly BBC: blade brake control BHTF: button head thread forming CARR: carriage CCW: counter clockwise CW: clockwise DEG: degrees DPA: Dual Point Adjustment ECM: electronic control module EXT: external FH: flat head GA: gauge HD: heavy-duty HF: hex flange HH: hex head HHF: hex head flange HHFTF: hex head flange thread forming HJ: hex jam HLH: hex lag head HOC: height-of-cut HP: high pressure HSBH: hex socket button head HSFH: hex socket flat head HSH: hex socket head HWH: hex washer head HWHTF: hex washer head thread forming HYD: hydraulic LH: left hand LP: low pressure LPG: Liquefied Petroleum Gas NI: nylon insert NPTF: national pipe thread fine PFH: phillips flat head PPH: phillips pan head PPHTF: phillips pan head thread forming PRH: phillips round head PTH: phillips truss head PTO: power-take-off RH: right hand ROPS: roll-over protection system RRB: rear roller brush SFH: slotted fillister head SHH: slotted hex head SHWH: slotted hex washer head SPH: slotted pan head SQH: square head SRH: slotted round head STD: standard TAP: self tapping TTH: torx truss head 2

3 Contents Main Frame Assembly Track and Drive Assembly Hydraulic Pump Assembly No Hydraulic Pump Assembly No Hydraulic Motor Assembly No Engine Assembly Gear Pump Assembly No Parking Brake Assembly Control Assembly Trencher Assembly Control Tower Assembly Hydraulic Control Assembly Spool Valve Assembly No Oil Cooler Assembly Electrical Assembly Hydraulic Routing Assembly Cylinder and Crankcase Assembly Piston and Crankshaft Assembly Valve and Camshaft Assembly Lubrication Equipment Assembly Cooling Equipment Assembly Electric Equipment Assembly Control Equipment Assembly Carburetor Assembly Air Filter and Muffler Assembly Fuel Pump and Filter Assembly Starter Assembly Label Set Attachments and Accessories The Toro Company 8111 Lyndale Avenue South Bloomington, MN Contact us at Printed in the USA. All Rights Reserved

4 Main Frame Assembly A 4 02

5 Main Frame Assembly (continued) Main Frame ASM 1: Decal-Warning 1: Decal-Danger 1: Decal-Oil, HYD Sight Glass ASM 2: O-Ring Nut-Tinnerman Cover-Rear Plate-Cover, Front Fitting-HYD, 90 DEG 6: O-Ring Hose-Breather Breather Clamp-Hose Screw-HHF Screw-HH Nut-Flange Pin-Pivot Screw-HH Nut-Lock, NI Fitting-Grease In-Tank Filter ASM Bumper Nut-HF Bracket-Clamp Spacer Screw-HH Nut-HF Decal-Point, Lift Tie-Cable Nut-Push Screw-HHF A

6 Track and Drive Assembly A 6 03

7 Track and Drive Assembly (continued) Track-Rubber Frame-Track, LH Frame-Track, RH RH HYD Pump ASM LH HYD Pump ASM Wheel-Drive Wheel-Tensioner 7: Wheel-Track 7: Bearing-Ball Gasket-Bogie Screw-HH Cap-Wheel, Bearing Ring-Snap, Internal Tensioner-Track Screw-HH, TAP Nut-Lock Screw-HH Nut-Hex Screw-HHF Screw-HHF Nut-HHF Washer-Flat Nut-Lock, NI Bar-Thread HYD Wheel Motor ASM Sheave Fitting-HYD, Straight 26: O-Ring 26: O-Ring Fitting-HYD, Straight 27: O-Ring 27: O-Ring Tube-HYD Tube-HYD Tube-HYD Tube-HYD Bracket-Mount, Pump Key-Pump Bushing Washer Screw-HH Screw-HHF Nut-HF Hose-HYD Fitting-HYD, 90 DEG 45: O-Ring 45: O-Ring Fitting-Tee 46: O-Ring 46: O-Ring Spacer Adapter 49: O-Ring 49: O-Ring Tube-HYD Fitting-HYD, 90 DEG 51: O-Ring 51: O-Ring Hose Fitting-Barbed, 90 DEG 53: O-Ring Clamp-Hose A

8 Hydraulic Pump Assembly No Housing Kit Pin-Headless, Straight Bolt-HF O-Ring Charge Pump Kit Gerotor ASM O-Ring Capscrew Bypass Valve Kit Input Shaft Kit Bearing-Ball Seal-Lip Spacer Ring-Retaining Cylinder Block Kit Spring-Block Washer-Thrust Plate-Valve Swashplate-Variable Bearing-Thrust Arm-Trunnion, Tapered Square Guide-Slot Valve-Check (W/Poppet) Charge Relief Valve Kit Trunnion Seal Kit Plug-HSH Plug-HSH Seal Overhaul Kit Not illustrated A 8 03A1

9 Hydraulic Pump Assembly No Housing Kit Pin-Headless, Straight Bolt-HF O-Ring Charge Pump Kit Gerotor ASM O-Ring Capscrew Bypass Valve Kit Input Shaft Kit Bearing-Ball Seal-Lip Spacer Ring-Retaining Cylinder Block Kit Spring-Block Washer-Thrust Plate-Valve Swashplate-Variable Bearing-Thrust Arm-Trunnion, Tapered Square Guide-Slot Valve-Check (W/Poppet) Charge Relief Valve Kit Trunnion Seal Kit Plug-HSH Plug-HSH Seal Overhaul Kit Not illustrated 03A A

10 Hydraulic Motor Assembly No A 10 03A3

11 Hydraulic Motor Assembly No (continued) Seal Kit Key-Woodruff Shaft-Coupling Motor Housing ASM A

12 Engine Assembly A 12 05

13 Engine-Kawasaki, Fs600V Screw-HH Nut-HF Mount-Pump Gear Pump ASM Pulley-Engine Screw-Set, HSH Spider-Coupler Coupler-Flex 9: Screw-Set Belt-V Key-Square Pulley-Idler Arm-Idler Bushing-Lever, Lift Washer-Plain Screw-HH Washer-Flat Screw-HHF Fitting 19: O-Ring Hose-Suction Clamp Nut-HHF, Whiz Screw-HH Spring-Extension Hose-Vent Valve-Drain, Oil Hose-Fuel Clamp-Hose Screw-HH Adapter Clamp-R Screw-HH Valve-Fuel Hose-Fuel Engine Assembly (continued) Lever-Control Washer-Flat Screw Nut-Lock, NI Cable-Control Knob Screw-HH Nut-HF Bracket-Guard, Muffler Guard-Muffler Muffler Screw-HHF Clamp-Hose Manifold-Muffler Clamp-Muffler Key-Square Plate-Sheld, Heat Clamp Screw-Pan Nut-Hex Screw-HH Gasket-Exhaust Washer-Spring Nut-Hex Lever-Control Washer-Friction, Composite Nut-Flange, NI Spacer-Idler Bolt-Shoulder Spacer Nut-Lock, NI Washer-Thrust Washer-Wave 75 AU Protector-Hose, 4 Inch Tie-Cable Foil-Guard A

14 Gear Pump Assembly No Key-Square Seal Kit A 14 05A4

15 Bar-Brake Link-Mounting Handle-Brake Brake Rod ASM 4: Yoke-Linkage, Brake 4: Linkage-Handle, Brake 4: Nut-Hex Pin-Spring, Clevis Parking Brake Assembly Bolt-Shoulder Screw-Shoulder Nut-Lock, NI Spring-Idler Grip-Handle Decal-Parking Brake Screw-Shoulder, HH Nut-HF A

16 Bearing Screw-HH Control Support ASM 3: Bearing-Flange Nut-Lock, NI Rod-Drive Lever-Pivot Washer-Flat Washer-Spring, Wave Plate-Neutral Screw-HH Nut-Lock, NI Screw-HH Nut-Flange Handle-Control Screw-HHF Joint-Ball End, LH Rod-Control, LH Rod-Control, RH Nut-HJ Screw-HSH Control Assembly Spacer-Plate, Retaining Screw-Set Nut-Jam Link-Control, Adjustment Decal Decal-Traction Screw-HH Plate-Adapter, Control, RH Bushing-Flange Bolt-Shoulder Washer-Lock Nut-Lock, NI Nut-Lock, NI Plate-Base, RH Plate-Arm, Return Pivot-RH Bearing-Ball Washer-Thrust Screw-HH Spring-Extension Plate-Base, LH A 16 06

17 Plate-Arm, Return, LH Pivot-LH Nut-Lock, NI Washer-Belleville Screw-HSH Washer-Flat Screw-HSH Control Assembly (continued) Lock-Trunion Washer-Plain Lever-Return, RH Lever-Return, LH Ring-Retaining Screw-Shoulder Spring-Extension A

18 Trencher Head ASM 1: Decal-Danger Bearing-Ball Spacer Bearing-Ball Seal-Grease Shaft-Trencher HYD Motor ASM Lockwasher-Bearing Locknut-Bearing Collar-Splined Screw-HSH HYD Cylinder ASM Pin-Pivot Sprocket-Trencher Fitting-Grease Screw-HSH Auger-Trencher Screw-HH Trencher Assembly Nut-Lock, NI Screw-HH Nut-Lock, NI Shield-Dirt Bar-Clamp Bracket-Shield Screw-HSH Screw-HH Washer-Flat Nut-Lock, NI Spacer-Pivot Bolt-HH Nut-Lock, NI Screw-HH Plate-Strap, Shield Fitting-Lube Washer-Hardened Washer-Saddle Washer-Lock A 18 07

19 Tower Panel-Control 2: Decal-Console, RH 2: Decal-Console, LH Bar-Reference Tank-Fuel 4: Fitting-Fuel, Bulkhead Cap-Fuel, Ratcheting Bracket-Cover, Tank Switch-Plunger Screw-HH Nut-Lock, NI Spacer-Spring Spring-Torsion, LH Spring-Torsion, RH Plate-Reverse Plate-Switch Bolt-CARR Washer-Flat Nut-Keps Switch-Proximity Control Tower Assembly Screw-Taptite Cap-Housing Tube-Manual Clamp-R Rivet-Pop Decal Screw-CARR Washer-Flat Nut-Keps Pad-Foam Nut-Lock, NI Screw-HH Washer-Flat Bushing-Nyliner Screw-HHF Nut-Flange Decal-Side, LH Decal-Info Rod-Interlock Spring-Control Washer-Flat A

20 Pin-Cotter Screw-HH Nut-Jam Decal-Side, RH Control Tower Assembly (continued) Decal-Arrester, Spark Fitting-Elbow, 90 DEG Bushing Hose-Vent, Tank A 20 08

21 HYD Valve ASM Screw-HH Bearing-Wheel, Friction Spacer-Hiflo Spring-Torsion Lever-Auxiliary Grip-Rubber Bracket-Control Pin-Hair Screw-HH Knob Nut-Lock, NI Hydraulic Control Assembly Screw-HH Rod-Lever, Cylinder Screw-HHF Nut-Lock, NI Washer-Flat Washer-Flat Bearing-Rod End Screw Switch-Ball O-Ring Spacer A

22 2-Spool Valve Assembly No Seal-Valve Valve-Relief Spool-Valve Spool Lever Kit Spring Return Kit Switch Spring Return Kit Seal-Return Spacer-Square Spacer-Spring Return Gasket-Return A 22 09A5

23 Mount-Cooler Fan Screw-HH Spacer Exchanger-Heat Clamp-Cooler, Oil Nut-Lock, NI Screw-HWH Cover-Cooler Oil Cooler Assembly Nut-Lock, NI Screw-HH Hose-Return Clamp-Hose Tie-Cable Hose-Cooler Fitting 18: O-Ring A

24 Electrical Assembly A 24 13

25 Harness-Wire 1: Fuse-Blade, 30 Amp 1: Fuse-Blade, 25 Amp 1: Fuse-Blade, 15 Amp 1: Cap-Plug Relay Key-Ignition Key Switch ASM 4: Washer-Tooth, Internal 4: Nut-HH Tray-Battery Battery-Dry Plate-Hold Down, Battery Holdown-Battery Nut-Lock, NI Screw-HHF Nut-HHF Solenoid Screw-HH Electrical Assembly (continued) Washer-Lock Nut-Jam Wire-Solenoid/Starter Nut-Keps Cable-Battery, Red Washer-Flat Nut-Keps Screw-HH Cable-Battery, Black Hourmeter Screw Nut-Lock, NI Washer-Lock Screw-HWH Pad-Skid, Anti Screw-HH Washer-Lock Nut-Hex Clip-Mounting A

26 Hose-HYD Hose-HYD Hose-HYD Hose-HYD Hose-HYD Sleeve-Protective Sleeve-Protective Clamp-Hose Fitting-HYD, Straight 11: O-Ring 11: O-Ring Fitting-HYD, Straight 12: O-Ring 12: O-Ring Adapter ASM 13: O-Ring 13: O-Ring Adapter 14: O-Ring Adapter 15: O-Ring Hydraulic Routing Assembly 15: O-Ring Hose ASM Adapter 17: O-Ring 17: O-Ring Fitting-HYD, 90 18: O-Ring 18: O-Ring Fitting-HYD, Straight 19: O-Ring 19: O-Ring Valve-Check 20: O-Ring 20: O-Ring Fitting-HYD, 90 DEG 21: O-Ring Tie-Cable Nipple Fitting-HYD, Tee 24: O-Ring Cap-Dust A 26 11

27 Cylinder and Crankcase Assembly Bolt-Flanged (6X25) 130A Bolt-Flanged (8X70) Bolt-Stud (8X18) Screw-Pan (4X8) O-Ring (11Mm) Gasket-Head Cylinder Head No.1 ASM 11008A Cylinder Head No.2 ASM Case-Rocker (No.1) 11022A Case-Rocker (No.2) Gasket-Case, Rocker 11061A Gasket-Breather Plate-Breather Cover-Breather Valve-Breather Hook-Lift Pipe Pipe-Breather Cover-Crankcase Crankcase ASM Joint KW Pin Seal-Oil, Rv C2 (6X11X10.2) 92049A Seal-Oil, So (8X14X5) Hs 92049B Seal-Oil, Sd (35X48X8) R Hs 92049C Seal-Oil (38X62X8) Mtclv Plug 92066A Plug Gasket-Liquid (Tb1217H) Bolt (6X12) 92153A Bolt (8X50) A

28 Piston and Crankshaft Assembly Piston-Engine Pin-Piston Piston Ring Set Crankshaft ASM Connecting Rod ASM Ring-Snap Bolt (6X35) A 28 3

29 Bolt-Flanged (8X14) Nut-Hex (6Mm) Bracket Valve-Intake Valve-Exhaust Retainer-Spring, Valve Collet Arm-Rocker Tappet Guide-Govenor Rod-Push Plate Valve and Camshaft Assembly 13271A Plate-Governor Sleeve Spring-Valve, Engine (In) Camshaft ASM Ring-Snap Ball Spring Collar Bolt (6X29.5) Washer (8.1X18X0.5) 92200A Washer (16X42X0.91) 92200B Washer (16.3X30X2.28) A

30 Lubrication Equipment Assembly Pin-Spring (4X20) Discontinued Plate-Rotor Oil Gauge Cap ASM Rotor-Pump, Outer 16154A Rotor-Pump, Inner Filter-Oil 49065A Filter-Oil Tube-Filler, Oil Plug 92066A Plug Ball Spring Bolt 92153A Bolt (6X12) A 30 5

Cooling Equipment Assembly 14037 120-7486 1 Screen 49089 120-7420 1 Shroud-Engine 49089A 120-7421 1 Shroud-Engine 55020 120-7487 1

31 Cooling Equipment Assembly Screen Shroud-Engine 49089A Shroud-Engine Guard-Screen Fan Housing-Fan Screw Rivet-Guard Bolt A

32 Bolt-Flanged (6X20) 510 KW Key-Woodruff Regulator-Voltage Ignition Coil ASM Flywheel ASM Wire-Lead (L=95) Harness 26031A Harness Electric Equipment Assembly Coil-Charging Screw Plug Spark Plug Band Bolt (12X30) Screw (5X20) Washer (12.2X46X3) A 32 7

33 Screw-Pan (4X8) Nut-Hex (6Mm) Nut-Hex (5Mm) Washer-Plain (6Mm) Shaft Plate Link Spring-Governor Arm-Governor Control Equipment Assembly Control Panel ASM Spring 92145A Spring Bolt (5X18) Bolt (5X30) Bolt (6X35) 92153A Bolt (6X12) Clamp A

34 Bolt-Flanged (6X35) Bolt-Stud (6X95) Gasket-Insulator 11061A Gasket-Chamber 11061B Gasket-Screw 11061C Gasket-Manifold Shaft Carburetor ASM Screw-Air, Pilot Chamber-Float Valve-Throttle Valve-Float Float Shaft-Throttle, Carburetor 16041A Shaft-Carburetor, Choke Carburetor Assembly Insulator Choke Valve ASM Solenoid Limiter Nozzle-Main Manifold-Intake Screw 92009A Screw Jet-Main, No Spring Seal Spring 92145A Spring Washer (9.8X5.5X1.0) A 34 9

35 Washer-Spring (8Mm) Case-Filter, Air Element-Filter, Air 11013A Element-Filter, Air Gasket-Muffler Gasket-Cleaner, Air Pipe-Intake Nut O-Ring Air Filter and Muffler Assembly Plug Clamp Clamp 92173A Clamp 92173B Clamp Tube (12.6X18.6X118) 92192A Tube-A/C Nut (M8) 92210A Nut A

36 Fuel Pump and Filter Assembly Sleeve Filter-Fuel Pump-Fuel Screw Clamp Clamp Tube (6.35X12.7X185) 92192A Tube (6.4X12.7X150) 92192B Tube (6.35X12.7X360) A 36 11

37 Starter Assembly Bolt-Flanged (8X30) Cover ASM 16146A Cover ASM Armature Electric Starter ASM Hook Stopper Gear-Spur Seal Spring Bolt Nut 92210A Nut A

38 Label Set Label-Warning Label-Brand A 38 13

39 Attachments and Accessories For TRX-20 Trencher Product Name Model/Part Crumber Kit in Trencher Boom in Trencher Boom in Trencher Boom in X 4in Soil Chain in X 6in Soil Chain in X 4in Soil Chain in X 6in Soil Chain in X 4in Combination Chain in X 6in Combination Chain in X 4in Combination Chain in X 6in Combination Chain in X 4in Rock Tooth Chain in X 6in Rock Tooth Chain in X 4in Rock Tooth Chain in X 6in Rock Tooth Chain in x 4in Soil Chain in x 4in Combination Chain in x 6in Soil Chain in x 6in Combination Chain in X 4in Bullet Chain in X 6in Bullet Chain in X 4in Bullet Chain in X 6in Bullet Chain Bore Drive Attachment Backfill Blade in Chain Conversion Kit for 36in Soil Chain Spark Arrestor Screen

TRX-26 Trencher. Model No Serial No and Up * * B. Register at Original Instructions (EN)

TRX-26 Trencher. Model No Serial No and Up * * B. Register at Original Instructions (EN) Form No. 3414-278 Rev B TRX-26 Trencher Model No. 22974 Serial No. 400000000 and Up Register at www.toro.com. Original Instructions (EN) *3414-278* B Ordering Replacement Parts To order replacement parts,