Toro Power TRX Commercial 1428 Service Manual
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Toro Power TRX Commercial 1428 Service Manual

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© 2020—The Toro® Company
8111 Lyndale Avenue South
Bloomington, MN 55420
POWER TRX™ HD Service
Manual
Published: November 2020
Form No. 3440-740 Rev A
Contact us at www.Toro.com.
Original Instructions (EN)
All Rights Reserved

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Summary of Contents for Toro Power TRX Commercial 1428

  • Page 1 Form No. 3440-740 Rev A POWER TRX™ HD Service Manual Published: November 2020 © 2020—The Toro® Company Original Instructions (EN) 8111 Lyndale Avenue South Contact us at www.Toro.com. Bloomington, MN 55420 All Rights Reserved...
  • Page 2 Revision History Revision History Page 2 POWER TRX™ HD Service Manual 3440-740 Rev A...
  • Page 3 The Toro Company RLC/SWS Customer Care Department 8111 Lyndale Avenue South Bloomington, MN 55420 The Toro Company reserves the right to change product specifications or make changes to this manual without notice. POWER TRX™ HD Service Manual Page 3 Preface...
  • Page 4 Service Procedure Icons The following icons appear throughout this Service Manual to bring attention to specific important details of a service procedure. Critical Process This icon is used to highlight: • Installing safety equipment (shields, guards, seat belts, brakes, and R.O.P.S. components) that may have been removed •...

  • Page 5: Table Of Contents

    Table of Contents Preface ........................ 3 Chapter 1: Safety .................... 1–1 Safety Instructions ..................1–2 Chapter 2: Specifications and Maintenance ............ 2–1 Specifications ....................2–2 Torque Specifications ................... 2–3 Chapter 3: Troubleshooting ................3–1 General Troubleshooting ................3–3 Chapter 4: Engine ................... 4–1 General Information ..................
  • Page 6 Preface Page 6 POWER TRX™ HD Service Manual 3440-740 Rev A...
  • Page 7 Chapter 1 Safety Table of Contents Safety Instructions ..........................1–2 Think Safety First ..........................1–2 POWER TRX™ HD Service Manual Page 1–1 Safety 3440-740 Rev A...

  • Page 8: Safety Instructions

    Safety Instructions DANGER This safety symbol means danger. When you see this symbol, carefully read the instructions that follow. Failure to obey the instructions could cause serious permanent injury, disability, or death. WARNING This safety symbol means warning. When you see this symbol, carefully read the instructions that follow.
  • Page 9 Think Safety First (continued) Battery acid is poisonous and can cause burns. Avoid contact with skin, eyes and clothing. Battery gases can explode. Keep cigarettes, sparks and flames away from the battery. Avoid injury due to inferior parts… Use only original equipment parts to ensure that important safety criteria are met. Avoid injury to bystanders…...
  • Page 10 Think Safety First (continued) The proper class of fire extinguisher should be used in case of fire. Class A extinguishers are for ordinary combustible materials such as paper, wood, cardboard, and most plastics. The numerical rating on these types of extinguishers indicates the amount of water it holds and the amount of fire it can extinguish.
  • Page 11 Chapter 2 Specifications and Maintenance Table of Contents Specifications ............................2–2 Torque Specifications ........................... 2–3 Equivalents and Conversions......................2–8 U.S. to Metric Conversions ........................ 2–9 POWER TRX™ HD Service Manual Page 2–1 Specifications and Maintenance 3440-740 Rev A...

  • Page 12: Specifications

    81 cm (32 inch) 71 cm (28 inch) 81 cm (32 inch) Snow Cut Depth 51 cm (20 inch) Engine 420cc Toro Premium OHV Engine Model LC190FDS LC190FDS-1 Oil Type & 0.95 L (32 oz) 10w 30 / 5w 30 Synthetic...

  • Page 13: Torque Specifications

    Torque Specifications The 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.
  • Page 14 Metric Bolts and Screws g272209 Figure 2 Class 8.8 Class 10.9 Specifications and Maintenance: Torque Specifications Page 2–4 POWER TRX™ HD Service Manual 3440-740 Rev A...
  • Page 15 Standard Torque for Dry, Zinc Plated, and Steel Fasteners (Inch Series) Thread Size Grade 1, SAE Grade 1 Bolts, Screws, SAE Grade 5 Bolts, Screws, SAE Grade 8 Bolts, Screws, 5, & 8 Studes & Sems with Studs & Sems with Regular Studs &...
  • Page 16 Standard Torque for Dry, Zinc Plated, and Steel Fasteners (Metric Series) Thread Size Class 8.8 Bolts, Screws, Studs with Regular Class 10.9 Bolts, Screws, Studs with Regular Height Nuts (Class 8 or Stronger Nuts) Height Nuts (Class 10 or stronger Nuts) in-lb N •...
  • Page 17 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 1/2 - 13 UNC 75 ±...
  • Page 18 Equivalents and Conversions Decimal and Millimeter Equivalents Fractions Decimals Fractions Decimals 1/64 0.015625 0.397 33/64 0.515625 13.097 1/32 0.03125 0.794 16/32 0.53125 13.484 3/64 0.046875 1.191 35/64 0.546875 13.891 1/16 0.0625 1.588 9/16 0.5625 14.288 5/64 0.078125 1.984 37/64 0.578125 14.684 3/32 0.9375...
  • Page 19 U.S. to Metric Conversions To Convert Into Multiply By Miles Kilometers 1.609 Yards Meters 0.9144 Feet Meters 0.3048 Linear Measurement Feet Centimeters 30.48 Inches Meters 0.0254 Inches Centimeters 2.54 Inches Millimeters 25.4 Square Miles Square Kilometers 2.59 Square Feet Square Meters 0.0929 Area Square Inches...
  • Page 20 Specifications and Maintenance: Torque Specifications Page 2–10 POWER TRX™ HD Service Manual 3440-740 Rev A...
  • Page 21 Chapter 3 Troubleshooting Table of Contents General Troubleshooting ........................3–3 POWER TRX™ HD Service Manual Page 3–1 Troubleshooting 3440-740 Rev A...
  • Page 22 GEARS The Systematic approach to defining, diagnosing and solving problems. Gather Information • Information reported by the customer • Information observed by you • Establish the what, where and when of the issue Evaluate Potential Causes • Consider possible causes of the problem to develop a hypothesis •...

  • Page 23: General Troubleshooting

    General Troubleshooting See Operator’s Manual for troubleshooting information. POWER TRX™ HD Service Manual Page 3–3 Troubleshooting: General Troubleshooting 3440-740 Rev A...
  • Page 24 Troubleshooting: General Troubleshooting Page 3–4 POWER TRX™ HD Service Manual 3440-740 Rev A...
  • Page 25 Chapter 4 Engine Table of Contents General Information ..........................4–2 Service and Repairs ..........................4–3 Engine Replacement.......................... 4–4 POWER TRX™ HD Service Manual Page 4–1 Engine 3440-740 Rev A...
  • Page 26 General Information Models 38890 and 38891 use Toro Engine LC190FDS and have 120v starters. Models 38870 and 38875 use Toro Engine LC190FDS-1 and have 230v starters. Engine: General Information Page 4–2 POWER TRX™ HD Service Manual 3440-740 Rev A...
  • Page 27 Service and Repairs Engine Assembly g332805 Figure 3 Engine Belt Guide LED Light Assembly Engine Plate Assembly Light Bracket Belt Cover POWER TRX™ HD Service Manual Page 4–3 Engine: Service and Repairs 3440-740 Rev A...
  • Page 28 Engine Replacement Engine Removal 1. Park the machine on a level surface. Stop the engine, wait for all moving parts to stop and remove the key. 2. Remove the traction belt. Traction Belt Removal (page 7–7) 3. Remove the 2 (1/4–20 x 1 inch) bolts securing the QUICK STICK® rod. Remove the QUICK STICK®...

  • Page 29: Chapter 4: Engine

    Engine Installation (continued) g263346 Figure 5 3. Install the QUICK STICK® rod into the gear face on the chute post. Secure with 2 (1/4–20 x 1 inch) bolts. CAUTION When installing the traction belt, make sure the belt is riding on top of the traction pulley sheaves to ensure the belt does not break.
  • Page 30 Engine: Service and Repairs Page 4–6 POWER TRX™ HD Service Manual 3440-740 Rev A...
  • Page 31 Chapter 5 Track Drive System Table of Contents General Information ..........................5–2 Service and Repairs ..........................5–3 Track Replacement ..........................5–5 Hydro Replacement ........................... 5–6 POWER TRX™ HD Service Manual Page 5–1 Track Drive System 3440-740 Rev A...

  • Page 32: General Information

    General Information The track drive system uses bypasses in the hydro to make the wheel clutch system work. Track Drive System: General Information Page 5–2 POWER TRX™ HD Service Manual 3440-740 Rev A...

  • Page 33: Service And Repairs

    Service and Repairs Track Drive Assembly g332803 Figure 6 Height Adjust Cable Bogey Yoke Adjuster Height Bracket Lynch Pin Welded Latch Assembly Drive Wheel Assembly Link Pivot Assembly Snow Track Flange Bushing Support Tube Welded Tensioner Front Brace Pivot Bar Axle Bushing Axle Bushing Support Bogey Wheel...
  • Page 34 Hydro Assembly g332808 Figure 7 Upper Hydro Bracket Rear Hydro Bracket Cable Hydro Bracket Hydro Track Drive System: Service and Repairs Page 5–4 POWER TRX™ HD Service Manual 3440-740 Rev A...

  • Page 35: Track Replacement

    Track Replacement Track Removal 1. Park the machine on a level surface. Stop the engine, wait for all moving parts to stop and remove the key. 2. Using a floor jack or overhead lifting device, raise the machine until the tracks are off the ground.

  • Page 36: Hydro Replacement

    Track Installation (continued) RH side of the machine. If a deflection of 9.5 mm (3/8 inch) is not achieved, see the Operator’s Manual for the deflection setting procedure. g332810 Figure 10 3. Torque the 2 (9/16 inch) nuts on the LH bogey yolk to 47.5 N• m (35 ft-lb). Repeat on the RH side of the machine.
  • Page 37 Hydro Removal (continued) 3. Remove the tracks from the machine. Track Removal (page 5–5) 4. Remove the 3 (1/4–20 x 5/8 inch) screws securing height adjust assembly and pivot bar to the frame. g332811 Figure 12 5. Remove the LH clutch cable from the LH clutch cable lever. Repeat on the RH side of the machine.
  • Page 38 Hydro Removal (continued) g332814 Figure 14 9. Remove the clutch cable springs from the hydro. Note: The clutch cable springs may have cable ties securing the springs to the hydro clutch arms. g332815 Figure 15 10. Remove the 2 (1/4–20 x 5/8) bolts securing they rear hydro bracket to the frame.
  • Page 39 Hydro Removal (continued) g335296 Figure 16 11. Remove the nut securing the rear hydro bracket to the hydro. Remove the rear hydro bracket. g335295 Figure 17 12. Remove the (3/8 inch) screw securing the hydro to the upper hydro bracket. POWER TRX™...
  • Page 40 Hydro Removal (continued) g332823 Figure 18 13. Remove the 4 (3/8 inch) screws securing the bottom cover to the traction frame. Remove the bottom cover. 14. Place a floor jack under the hydro and lower frame brace to support the hydro. g332817 Figure 19 15.
  • Page 41 Hydro Removal (continued) g332819 Figure 20 16. Remove the 2 (1/4–20 x 2 1/4 inch) screws and 2 (5/16–18 x 3/4 inch) nuts securing the LH lower frame brace to the LH traction frame. Repeat on the RH side of the machine. g332816 Figure 21 17.
  • Page 42 Hydro Removal (continued) g332818 Figure 22 18. Using a floor jack, slowly lower and remove the hydro from the machine. Hydro Installation 1. Using a floor jack, slowly raise the hydro and lower frame brace into the housing. 2. Install the 2 (1/4–20 x 2 1/4 inch) screws and 2 (5/16–18 x 3/4 inch) nuts securing the LH lower frame brace to the LH traction frame.
  • Page 43 Hydro Installation (continued) g332818 Figure 24 4. Install the hydro belt to the hydro. g332819 Figure 25 5. Remove the floor jack from under the hydro. 6. Install the bottom cover and secure with 4 (3/8 inch) screws. 7. Install the (3/8 inch) screw securing the hydro to the upper hydro bracket. POWER TRX™...
  • Page 44 Hydro Installation (continued) g332823 Figure 26 8. Install the rear hydro bracket to he frame and secure with 2 (1/4–20 x 5/8) bolts. Torque the 2 bolts to 6 N • m (50 in-lb). g335296 Figure 27 9. Install the nut securing the rear hydro bracket to the hydro. Track Drive System: Service and Repairs Page 5–14 POWER TRX™...
  • Page 45 Hydro Installation (continued) g335295 Figure 28 10. Install the clutch cable springs to the hydro. g332815 Figure 29 11. Clip the clutch cables into the rear cover. POWER TRX™ HD Service Manual Page 5–15 Track Drive System: Service and Repairs 3440-740 Rev A...
  • Page 46 Hydro Installation (continued) g332814 Figure 30 12. Install the rear cover to traction frame and secure with 4 (1/4–20 x 5/8 inch) bolts. 13. Install the traction cable to the underside of the control panel and secure with a (1/4–20 x 5/8 inch) screw. Torque the screw to 6 N • m (50 in-lb). Note: Once the speed control cable has been removed, it may need to be re-set to gain neutral position of the hydro by adjusting the jam nuts.
  • Page 47 Hydro Installation (continued) g332811 Figure 32 16. Install the tracks onto the machine. Track Installation (page 5–5) 17. Lower the machine to the ground and remove the overhead lifting device. POWER TRX™ HD Service Manual Page 5–17 Track Drive System: Service and Repairs 3440-740 Rev A...
  • Page 48 Track Drive System: Service and Repairs Page 5–18 POWER TRX™ HD Service Manual 3440-740 Rev A...
  • Page 49 Chapter 6 Controls Table of Contents General Information ..........................6–2 Service and Repairs ..........................6–3 QUICK STICK® Replacement ......................6–5 Control Interlock Replacement......................6–10 Control Replacement and Adjustment....................6–12 Shift Lever Adjustment ........................6–14 POWER TRX™ HD Service Manual Page 6–1 Controls 3440-740 Rev A...

  • Page 50: General Information

    General Information The POWER TRX™ models 38890, 38891, 38870, and 38875 are all commercial units and are built with commercial grade handles and controls. Controls: General Information Page 6–2 POWER TRX™ HD Service Manual 3440-740 Rev A...

  • Page 51: Service And Repairs

    Service and Repairs QUICK STICK® Assembly g263540 Figure 33 RH QUICK STICK® Globe Chute Control Lever Assembly Chute Rod LH QUICK STICK® Globe Lever Cap Chute Control Rod Latch Trigger Deflector Control Cable Latch Link POWER TRX™ HD Service Manual Page 6–3 Controls: Service and Repairs 3440-740 Rev A...
  • Page 52 Handle Bracket Assembly g332807 Figure 34 Track Adjustment Lever Upper Traction Cable Lever Bracket Push Pull Hydro Cable Speed Shift Gate HD Handle Assembly Metal Trim Cleanout Stick Bracket Light Clamp Clutch Cable Lower Handle Bracket Speed Cable Bracket Controls: Service and Repairs Page 6–4 POWER TRX™...

  • Page 53: Quick Stick® Replacement

    QUICK STICK® Replacement QUICK STICK ® Removal 1. Park the machine on a level surface. Stop the engine, wait for all moving parts to stop and remove the key. 2. Unhook the Z-bend and disconnect the deflector cable from the underside of the QUICK STICK®.
  • Page 54 QUICK STICK ® Removal (continued) g262303 Figure 37 5. Remove the 3 (1/4–20 x 1 inch) carriage bolts and nuts on the chute control rod and lift the QUICK STICK® out of the control panel. Note: Notice the location of the cable clamp for latch cable function. 6.
  • Page 55 QUICK STICK® Disassembly (continued) g262305 Figure 39 2. Remove the 2 Phillips head screws on the RH of the QUICK STICK® globe (the part that looks like a ball). Remove both halves and set aside. g262306 Figure 40 3. Remove the (9/16 inch) locknut from the shoulder bolt. Slide the chute control rod off and remove the friction washer.
  • Page 56 QUICK STICK® Disassembly (continued) g262318 Figure 41 5. Lift the metal latch pawl off the hex on the cable lever. Remove the latch trigger and spring. Note: Notice the orientation of the pawl to the lever for reassembly. g262319 Figure 42 6.
  • Page 57 QUICK STICK® Disassembly (continued) g262320 Figure 43 QUICK STICK®Reassembly 1. Place the latch spring over the boss. The straight end of the spring should be down with the hooked end facing up. g262321 Figure 44 2. Slide the latch trigger over the boss until it is fully seated, making sure that the stop on the trigger lever is above the stop on the quick lever.

  • Page 58: Control Interlock Replacement

    QUICK STICK® Installation Note: The cable clamp must be installed on the chute control rod or the cable latch will not function. 1. Install the QUICK STICK® onto the control panel. Secure with 3 (1/4–20 x 1 inch) carriage bolts and nuts on the chute control rod. 2.
  • Page 59 Control Interlock Removal (continued) g263047 Figure 46 4. To remove the lockout rod, go to the RH end. There are 2 roll pins on the LH side and 1 in the lockout cam on the RH side. g263046 Figure 47 5.

  • Page 60: Control Replacement And Adjustment

    Control Interlock Removal (continued) g263049 Figure 48 Control Interlock Installation Note: Notice the spring on the lockout latch. The end with the slight bend goes behind the lockout latch and the hooked end goes over the small tab. It is easier to install the latch mechanism first, then hook the end of the spring with a wire to pull into place.
  • Page 61 Deflector Cable Removal (continued) g263044 Figure 49 3. Remove the cable clamp and disconnect the cable end from the deflector. g263050 Figure 50 4. Remove the cable clamp on the traction housing. Deflector Cable Installation 1. Connect the cable end to the deflector. Secure with a cable clamp. 2.

  • Page 62: Shift Lever Adjustment

    Deflector Cable Adjustment Make sure the QUICK STICK® is in the maximum rear position and centered; ensure the deflector is in the full upward position. Draw the slack out of the cable and secure the clamp. g263051 Figure 51 Shift Lever Adjustment The shift lever on the control panel is connected to the friction wheel in the traction frame by a shift rod.
  • Page 63 Shift Rod Adjustment (continued) Note: The adjustment point is a trunnion on the upper end of the shift rod. g263053 Figure 53 2. Pull the shift rod and arm upward as far as they will go. With the shift lever in R2, adjust the trunnion to take the slack out and re-secure.
  • Page 64 Controls: Service and Repairs Page 6–16 POWER TRX™ HD Service Manual 3440-740 Rev A...

  • Page 65: Service And Repairs

    Chapter 7 Belts Table of Contents General Information ..........................7–2 Service and Repairs ..........................7–3 Auger Belt Replacement ........................7–4 Traction Belt Replacement ......................... 7–7 POWER TRX™ HD Service Manual Page 7–1 Belts 3440-740 Rev A...
  • Page 66 General Information The POWER TRX™ units use a double-V auger drive belt. Belts: General Information Page 7–2 POWER TRX™ HD Service Manual 3440-740 Rev A...
  • Page 67 Service and Repairs Auger Drive Components g338135 Figure 55 Traction Belt Traction Idler Arm Cable Bracket Square Key Traction Sheave Idler Pulley Cable Guide Cap Cable Anchor Extension Spring Traction Cable Cable Guide POWER TRX™ HD Service Manual Page 7–3 Belts: Service and Repairs 3440-740 Rev A...
  • Page 68 Auger Belt Replacement Auger Belt Removal 1. Park the machine on a level surface. Stop the engine, wait for all moving parts to stop and remove the key. 2. Drain the fuel into a suitable container. 3. Disconnect the light from the cover. g335258 Figure 56 4.
  • Page 69 Auger Belt Removal (continued) g263059 Figure 58 6. Remove the bolt securing the engine pulley to the crankshaft. If necessary, hold the hub between the engine pulley and engine to keep the crankshaft from turning. Remove the engine pulley and the auger belt from the crankshaft.
  • Page 70 Auger Belt Installation 1. Using the auger lever, release the brake. 2. Install the auger belt through the bottom of the machine. 3. Install the auger belt onto the impeller pulley. 4. Install the bottom cover to the traction frame and secure with 4 (1/4–20 x 5/8 inch) screws.
  • Page 71 Auger Belt Installation (continued) g335259 Figure 61 9. Connect the light to the cover. g335258 Figure 62 10. Refill the fuel. Traction Belt Replacement Traction Belt Removal 1. Park the machine on a level surface. Stop the engine, wait for all moving parts to stop and remove the key.
  • Page 72 Traction Belt Removal (continued) 5. Remove the traction belt from the crankshaft pulley. 6. Tip the unit forward and secure. 7. Remove the traction belt from the lower pulley. g263062 Figure 63 Traction Belt Installation 1. Install the traction belt to the lower pulley. 2.
  • Page 73 Chapter 8 Auger Housing Table of Contents General Information ..........................8–2 Service and Repairs ..........................8–3 Fixed Scraper............................. 8–5 Scraper Replacement ........................8–5 POWER TRX™ HD Service Manual Page 8–1 Auger Housing 3440-740 Rev A...

  • Page 74: General Information

    General Information The POWER TRX™ models utilize an all new gearcase featuring a horizontal parting line and heavy duty steel gears. Auger Housing: General Information Page 8–2 POWER TRX™ HD Service Manual 3440-740 Rev A...

  • Page 75: Service And Repairs

    Service and Repairs Main Frame and Auger Housing Assembly g263854 Figure 64 Traction Frame Ball Bearing Side Drift Breaker Bearing Retainer Auger Housing Scraper Blade Skid POWER TRX™ HD Service Manual Page 8–3 Auger Housing: Service and Repairs 3440-740 Rev A...
  • Page 76 Main Frame Assembly g332835 Figure 65 Traction Frame Neutral Lock Cover Lower Frame Brace Rear Cover Carrier Stop Auger Housing: Service and Repairs Page 8–4 POWER TRX™ HD Service Manual 3440-740 Rev A...

  • Page 77: Fixed Scraper

    Fixed Scraper The fixed scraper is bolted solidly to the auger housing, it is intended to be raised slightly off the ground to minimize catching on pavement cracks and solid objects. The amount that it should be raised depends on how rough the ground is.
  • Page 78 Auger Housing: Service and Repairs Page 8–6 POWER TRX™ HD Service Manual 3440-740 Rev A...
  • Page 79 Chapter 9 Auger Gearbox Table of Contents General Information ..........................9–2 Service and Repairs ..........................9–3 Auger and Traction Assemblies ......................9–4 Auger Gear Box Replacement ......................9–6 POWER TRX™ HD Service Manual Page 9–1 Auger Gearbox 3440-740 Rev A...

  • Page 80: General Information

    General Information The auger gearbox contains a worm gear and helical gear. It is driven by a clutching belt from the engine. Auger Gearbox: General Information Page 9–2 POWER TRX™ HD Service Manual 3440-740 Rev A...

  • Page 81: Service And Repairs

    Service and Repairs Gearbox, Auger and Impeller Assemlby g332836 Figure 67 RH Auger Impeller Auger Gearcase Assembly LH Auger POWER TRX™ HD Service Manual Page 9–3 Auger Gearbox: Service and Repairs 3440-740 Rev A...

  • Page 82: Auger And Traction Assemblies

    Auger and Traction Assemblies Separating the Auger and Traction Assemblies 1. Park the machine on a level surface. Stop the engine, wait for all moving parts to stop and remove the key. 2. Remove the 2 (1/4–20 x 5/8 inch) screws securing the belt cover to the traction frame.
  • Page 83 Separating the Auger and Traction Assemblies (continued) g263064 Figure 70 7. Remove the 2 (1/4–20 x 1 inch) carriage bolts on the chute control rod. g263045 Figure 71 8. Support the auger and traction housings with blocks of wood. 9. Remove the 3 (5/16–18 x 5/8 inch) cap screws on each side, connecting the auger to the traction assembly and separate the sections.

  • Page 84: Auger Gear Box Replacement

    Separating the Auger and Traction Assemblies (continued) g335260 Figure 72 10. Once separated, the auger pulley is in the open. 11. Remove the pulley from the input shaft. 12. Remove the 4 (5/16–18 x 5/8 inch) housing bolts on the outside of the auger housing.
  • Page 85 Chapter 10 Discharge Chute Table of Contents General Information ..........................10–2 Service and Repairs ........................... 10–3 Chute and Face Gear Cover Replacement ..................10–4 Chute Gear Replacement ........................ 10–5 POWER TRX™ HD Service Manual Page 10–1 Discharge Chute 3440-740 Rev A...

  • Page 86: General Information

    General Information The new POWER TRX™ snow blowers are all made with steel discharge chutes. Discharge Chute: General Information Page 10–2 POWER TRX™ HD Service Manual 3440-740 Rev A...

  • Page 87: Service And Repairs

    Service and Repairs Chute Assembly g264049 Figure 73 Face Gear Cover Deflector Link Face Gear Chute Gear Face Gear Mount Chute Latch Upper Deflector Assembly Lower Chute Assembly Deflector Gasket Chute Guide Middle Deflector Assembly Chute Post Assembly POWER TRX™ HD Service Manual Page 10–3 Discharge Chute: Service and Repairs 3440-740 Rev A...

  • Page 88: Chute And Face Gear Cover Replacement

    Chute and Face Gear Cover Replacement Chute and Face Gear Cover Removal 1. Park the machine on a level surface. Stop the engine, wait for all moving parts to stop and remove the key. 2. Remove the (1/4–20 x 5/8 inch) bolt securing the cable to the clamp and deflector link.

  • Page 89: Chute Gear Replacement

    Chute and Face Gear Cover Installation (continued) 2. Install the front of the cover into position. Secure with a screw. Chute Gear Replacement Chute Gear Removal 1. Park the machine on a level surface. Stop the engine, wait for all moving parts to stop and remove the key.
  • Page 90 Discharge Chute: Service and Repairs Page 10–6 POWER TRX™ HD Service Manual 3440-740 Rev A...
  • Page 91 Appendix A Foldout Drawings Table of Contents Electrical Drawing Abbreviations......................A–2 Electrical Schematic with Hand Warmers...................A–3 Electrical Schematic...........................A–4 POWER TRX™ HD Service Manual Page A–1 Foldout Drawings 3440-740 Rev A...

  • Page 92: Electrical Drawing Abbreviations

    Electrical Drawing Abbreviations The following abbreviations are used for wire harness colors on the electrical schematics and wire harness drawings in this chapter. Abbreviation Color Black BR or BM Brown Blue Green Gray Orange Pink R or RD Violet W or WH White Y or YE Yellow...

  • Page 93: Electrical Schematic With Hand Warmers

    Electrical Schematic with Hand Warmers g264089 , Drawing Rev A, Sheet 1 3440-740 Rev A Page A–3...

  • Page 94: Electrical Schematic

    Electrical Schematic g264090 Page A–4 3440-740 Rev A , Drawing Rev , Sheet...

This manual is also suitable for:

Power trx commercial 143238890388913887038875

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