Smithco Sweep Star 48H Parts & Service
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Smithco Sweep Star 48H Parts & Service

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Parts & Service
Sweep Star 48H
48-500-A
SN: GH5288
April 2020
Product Support:
Hwy SS & Poplar Ave; Cameron WI 54822
1-800-891-9435
productsupport@smithco.com

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  • Page 1 Parts & Service Sweep Star 48H 48-500-A SN: GH5288 April 2020 Product Support: Hwy SS & Poplar Ave; Cameron WI 54822 1-800-891-9435 productsupport@smithco.com...

  • Page 2: Table Of Contents

    Reel Height Adjustment ................10 Diagrams ....................11-15 Wiring Diagram ..................12-13 Hydraulic Diagram High Lift ...............14-15 Parts ......................16-90 Smithco Engineered Roll Over Protection .........16-17 Nose Cone ..................18-19 Steering ....................20-21 Front Fork ..................22-23 Foot Pedal Linkage ................24-25 Seat and Console ................26-27 Fuel and Oil Tank ................28-29...

  • Page 3: Introduction

    Thank you for purchasing a Smithco product. Read this manual and all other manuals pertaining to the Sweep Star 48H carefully as they have safety, op- erating, assembly and maintenance instructions. Failure to do so could result in personal injury or equipment damage.

  • Page 4: Safe Practices

    19. Stop engine before making repairs/adjustments or checking/adding oil to the crankcase. 20. Use parts and materials supplied by Smithco only. Do not modify any function or part. These machines are intended for professional maintenance on golf courses, sports turf, and any other area maintained turf and related trails, paths and lots.

  • Page 5: Specification

    SPECIFICATIONS FOR SWEEP STAR 48H WEIGHTS AND DIMENSIONS HIGH LIFT Length 121" (307 cm) Width 60" (153 cm) Height with Hopper Down 63" (160 cm) Height with Hopper Up 126" (320 cm) Wheel Base 70" (179 cm) Weight 1900 lb (862 kg)

  • Page 6: Maintenance

    Follow all procedures and ONLY use parts prescribed by the manufacturer. Read the engine manual before maintenance. LUBRICATION Use No. 2 General Purpose Lithium Base Grease and lubricate every 100 hours. The Sweep Star 48H has fifteen grease fittings. A. One on the top of each tower.
  • Page 7 MAINTENANCE HYDRAULIC OIL 1. Use SAE 10W-40 API Service SG motor oil. 2. For proper warranty, change oil every 500 hours or annually, which ever is first and change the filter after the first 50 hours, then every 250 hours thereafter. 3.
  • Page 8 MAINTENANCE TIRE PRESSURE Caution must be used when inflating a low tire to recommended pressure. Over inflating can cause tires to ex- plode. Front and rear tires and caster wheel should be 20 psi (1.4bar) maximum. Improper inflation will reduce tire life considerably.
  • Page 9 TOWING When it is necessary to move the Sweep Star 48H without engine running, the bypass valve built into hydro- static pump must be “open” by turning it turn. An “open” valve allows fluid to pass through the wheels free- ly.

  • Page 10: Service Chart

    SERVICE CHART Before servicing or making adjustments to the machine, stop engine, set park break, block wheels and remove key from ignition. Follow all procedures and ONLY use parts prescribed by the manufacturer. Read the engine manual before maintenance. The suggested maintenance checklist is not offered as a replacement for the manufacturer’s engine manual but as a supplement.
  • Page 11 MAINTENANCE CHART Duplicate this page for routine use. Maintenance Check Item For the week of: Tues. Wed. Thurs. Fri. Sat. Sun. Check the Safety Seat Switch Check Steering Operation Check the fuel level Check the engine oil level. Clean the air filter Clean the engine cooling fins.

  • Page 12: Adjustments

    ADJUSTMENTS PARK BRAKE ADJUSTMENT By turning knob on end of park brake lever you can tighten or loosen brake a small amount. To tighten turn the knob clockwise. To loosen turn counter clockwise. If this is not enough turn clevis on the rear of the brake cable to adjust length of cable.

  • Page 13: Reel Height Adjustment

    REEL HEIGHT ADJUSTMENT Below are the various ways that the Sweep Star 48H caster wheels can be adjusted to accommodate for the finger/brush reel height. By changing the two spacers around on the caster wheel fork you can experience a range of ground clearances on the finger/brush reel.

  • Page 14: Wiring Diagram

    WIRING DIAGRAM Color Code Chart Blue Brown Yellow Green Orange Black Purple...
  • Page 15 WIRING DIAGRAM PARTS LIST REF# PART# DESCRIPTION QUANTITY 76-337 Electric Clutch 15-725 Mount Panel End 15-726 Lighted Switch, On-None-Off 15-732 Rocker Switch, Green 12-804 Hour Meter 13-488 Key Switch with Hardware 50-359 Warning Indicator Light 17-271 Pigtail 8975 Circuit Breaker, 30 amp 8977 Circuit Breaker Boot 48-268...
  • Page 16 HYDRAULIC DIAGRAM 48-267 Hydrostatic Pump Displacement Variable to 1.44 in /R (23.6 cm 22.44 gpm (84.94 lpm) at 3600 rpm Max Operating Speed 3600 rpm Rated Pressure 3000 psi (206.8 bar) Max Pressure 5000 psi (344.7 bar) Max Inlet Vacuum 6 in Hg (.203 bar) Max Inlet Temperature 225°F (107°C)
  • Page 17 HYDRAULIC DIAGRAM PARTS LIST REF# PART# DESCRIPTION QUANTITY 76-627 Hydraulic Cylinder 76-242-01 Seal Kit 48-012 Hydraulic Hose, 80" 48-013 Hydraulic Hose, 60" 76-238 Wheel Motor 34-057 48-244 Hydraulic Tube 8832-12.5 Suction Hose, ID x 12.5" 18-040 Hose Clamp 48-257 Hydraulic Hose, 77" 48-267 Hydrostatic Pump 8832-42.5...
  • Page 18 SMITHCO ENGINEERED ROLL OVER DRAWING...
  • Page 19 SMITHCO ENGINEERED ROLL OVER PARTS LIST REF# PART# DESCRIPTION QUANTITY HB-38-16-100 Hex Bolt, - 16 x 1 HWL-38 Lock Washer, - 16 48-295 Left Support Bar HB-12-13-300 Hex Bolt, -13 x 3 HNTL-12-13 Nylon Lock Nut, HB-38-16-100 Hex Bolt, - 16 x 1...

  • Page 20: Nose Cone

    NOSE CONE DRAWING...
  • Page 21 Warning Indicator Light 76-362 Mini Tilt Steering 76-364 Tilt Steering Boot HNJ-58-18 Jam Nut, - 18 13-726 Center Cap 27-077 Decal, Smithco 13-718 15" Steering Wheel HWK-316-075 Woodruff Key, 15-725 Mount Panel End 15-730 Mount Panel Plug 15-725 Mount Panel End...
  • Page 22 STEERING DRAWING...

  • Page 23: Front Fork

    STEERING PARTS LIST REF# PART# DESCRIPTION QUANTITY 13-726 Steering Wheel Cap 13-718 Steering Wheel HNJ-58-18 Jam Nut, - 18 76-364 Tilt Steering Boot (comes with 76-362) 76-362 Tilt Steering Mechanism HWK-316-075 Woodruff Key, HB-516-18-100 Hex Bolt, - 18 x 1 HNFL-516-18 Flange Whiz-loc Nut, - 18...
  • Page 24 FRONT FORK DRAWING...
  • Page 25 FRONT FORK PARTS LIST REF# PART# DESCRIPTION QUANTITY HW-38 Flat Washer, (as Req'd) HB-38-16-200 Hex Bolt, - 16 x 2 HNTL-38-16 Nylon Lock Nut, - 16 HB-38-16-250 Hex Bolt, - 16 x 2 HNTL-38-16 Nylon Lock Nut, - 16 75-715 Shock Absorber 75-864 Bushing...
  • Page 26 LINKAGE DRAWING...
  • Page 27 LINKAGE PARTS LIST REF# PART# DESCRIPTION QUANTITY 48-312 Reverse Pedal Pad 48-315 Foot Pedal Rod HN-516-24 Hex Nut, - 24 21-462 Ball Joint, - 24 HWL-516 Lock Washer, HN-516-24 Hex Nut, - 24 16-062 Pedal Pad Plate 15-015 Pedal Pad 48-275 Engine Plate HP-18-200...

  • Page 28: Seat And Console

    SEAT AND CONSOLE DRAWING...
  • Page 29 SEAT AND CONSOLE PARTS LIST REF# PART# DESCRIPTION QUANTITY HB-38-16-100 Hex Bolt, - 16 x 1 HW-38 Flat Washer, HNFL-38-16 Flange Whiz-loc Nut, - 16 27-055 Flush Hinge HSMFCS-10-32-050 Machine Screw, #10 - 32 x HSMFCS-10-32-100 Machine Screw, #10 - 32 x HNFL-10-32 Flange Whiz-loc Nut, #10 -32 45-382...

  • Page 30: Fuel And Oil Tank

    FUEL AND OIL TANK DRAWING Not Illustrated 8800-26 " Fuel Line 18-186 Hose Clamp 9025-32 " Fuel Line 18-186 Hose Clamp...
  • Page 31 FUEL AND OIL TANK PARTS LIST REF# PART# DESCRIPTION QUANTITY 8-688 Mount Bracket 8-738 Carbon Canister Top Draw 8800-50 " Fuel Hose (tank to engine) 8983-44 Fire Sleeve 50-403 In-line Fuel Filter (replacement parts) 18-116 Hose Clamp 18-118 Pipe Plug, (part of tank) 18-093 Street Tee...

  • Page 32: Hopper Lift Cylinder

    HOPPER LIFT CYLINDER REEL LIFT CYLINDER TAILGATE CYLINDER...
  • Page 33 HOPPER LIFT CYLINDER REF# PART# DESCRIPTION QUANTITY 48-129 Spacer (inside of clevis to outside of machine) HMB-100-10 Machine Bushing 1 x 10GA (inside clevis; inside machine) HCP-100-325 Clevis Pin, 1 x 3¼ HHP-.177 Bridge Pin 76-627 Hydraulic Cylinder 76-242-01 Seal Kit 1 per 23-167 Elbow...

  • Page 34: Engine And Exhaust

    ENGINE AND EXHAUST DRAWING...
  • Page 35 ENGINE AND EXHAUST PARTS LIST REF# PART# DESCRIPTION QUANTITY 18-133 Hose Barb 23-130 90° Straight Elbow 23-136 Female Adapter HB-38-16-125 Hex Bolt, -16 x 1 HNFL-38-16 Flange Whiz-loc Nut, - 16 48-266 Gear Pump 18-331 Straight Thread Connector 23-145 O-ring 48-267 Hydro Pump 18-204...
  • Page 36 ENGINE AND EXHAUST DRAWING...
  • Page 37 ENGINE AND EXHAUST PARTS LIST REF# PART# DESCRIPTION QUANTITY 48-279 Guard Strap 15-020 Hand Grip 8959-28 Flex Hose, 28" 48-275 Engine Plate HB-516-18-175 Hex Bolt, - 18 x 1 HNTL-516-18 Nylon Lock Nut, - 18 48-270 Stub Shaft HMB-100-10 Machine Bushing, 1 x 10GA HB-38-16-200 Hex Bolt, - 16 x 2...
  • Page 38 ELECTRIC CLUTCH DRIVEN BELT DRIVE & MUFFLER DRAWING...
  • Page 39 ELECTRIC CLUTCH DRIVEN BELT DRIVE & MUFFLER PARTS LIST REF# PART# DESCRIPTION QUANTITY 48-275 Engine Plate 48-300 Main Frame 43-024 Engine, Briggs & Stratton 18HP HMB-100-10 Machine Bushing 1 x 10GA 76-337 Electric Clutch 17-271 Lead Wire for Clutch HB-38-16-125 Hex Bolt, - 16 x 1 HWL-38...

  • Page 40: Finger / Brush Reel

    FINGER / BRUSH REEL DRAWING...
  • Page 41 FINGER / BRUSH REEL PARTS LIST REF# PART# DESCRIPTION QUANTITY HB-34-10-550 Hex Bolt, - 10 x 5 33-435 Tire and Wheel 33-435-02 Wheel with Roller Bearing 33-435-03 Roller Bearing 33-435-04 Bushing HNTL-34-10 - 10 48-046 Castor Fork 29-585 Spacer Height Adjustment 1" 18-223 Bushing (part of 77-171)

  • Page 42: Rear Axle

    REAR AXLE DRAWING...
  • Page 43 REAR AXLE PARTS LIST REF# PART# DESCRIPTION QUANTITY HB-516-18-125 Hex Bolt, - 18 x 1 HWL-516 Lock Washer, 13-099 Clamp 48-305 Rear Baffle HB-38-16-350 Hex Bolt, - 16 x 3 HW-38 Flat Washer, HNTL-38-16 Nylon Lock Nut, - 16 HB-12-13-400 Hex Bolt, - 13 x 4 HW-716...

  • Page 44: Hopper And Tailgate

    HOPPER AND TAILGATE DRAWING 48-501 Hopper Dust Shield 48-326 Hopper Filter 20" x 45" 48-325 Tailgate Filter 17" x 46"...
  • Page 45 HOPPER AND TAILGATE PARTS LIST REF# PART# DESCRIPTION QUANTITY HP-18-200 Cotter Pin, HNA-114-12 Axle Nut, 1 - 12 48-297 Pivot Arm HB-34-10-500 Hex Bolt, - 10 x 5 HNTL-34-10 Nylon Lock Nut, - 10 48-009 LH Tower 48-296 Hose Guard HSSHS -516-18-075 Socket Head Set Screws, - 18 x...

  • Page 46: 48-267 Hydrostatic Pump

    48-267 HYDROSTATIC PUMP DRAWING...
  • Page 47 48-267 HYDROSTATIC PUMP PARTS LIST REF# PART# DESCRIPTION QUANTITY 76-398-01 Drive Shaft (splined) 60-343-08 Needle Bearing (with housing) 77-239-01 Housing 77-239-02 O-Ring 77-239-03 Thrust Bearing 77-239-04 Trunnion Cover 77-239-05 Pan Head Screw 77-239-06 Washer 77-239-07 Cone Bearing 77-239-08 Cam Plate 77-239-09 Swash Plate Insert 60-343-21...
  • Page 48 48-267 REPAIR DISASSEMBLY INSTRUCTIONS Model 70160 Repair Information - Disassembly The same charge pressure relief valve spring retainer is used Disassembly with either the standard or high The following disassembly procedure applies to a single pump pressure (see Figure 6). with or without gear pump The Figure 6 repair procedure for tandem...
  • Page 49 48-267 REPAIR DISASSEMBLY INSTRUCTIONS Model 70160 Repair Information - Disassembly 21 Remove the valve plate from the piston block assembly. 13 When the needle bearing Numbered End Flange Note: This valve plate may have stuck to the backplate assembly is replaced, the assembly that was previously removed.
  • Page 50 48-267 REPAIR DISASSEMBLY INSTRUCTIONS Model 70160 Repair Information - Disassembly 28 With the retaining ring Figure 25 Figure 31 removed, use a small press to press the shaft seal and input shaft assembly from the housing assembly. Figure 32 29 With the input shaft assembly removed, disassemble the 34 Use an o-ring pick or similar tool to remove the o-ring assembly for inspection by...
  • Page 51 48-267 REPAIR ASSEMBLY INSTRUCTIONS Model 70160 Repair Information - Reassembly Reassembly Lubricate and install the o-ring seal into counter-bore of housing Before reassembling the pump, replace all worn and (see Figure 41). damaged parts, assemblies, seals and o-rings. Lubricate the seals and o-rings with petroleum jelly to help retain them 10 Install the trunnion cover over during reassembly and to provide lubrication to the input and...
  • Page 52 48-267 REPAIR ASSEMBLY INSTRUCTIONS Model 70160 Repair Information - Reassembly 18 Lubricate and install the 25 Align the spline of the Figure 47 Figure 53 thrustplate over the input shaft gerotor’s inner ring, then lubricate assembly and into the camplate. and install the inner ring and outer The thrustplate must rest firmly in ring over the input shaft and onto...
  • Page 53 48-267 TROUBLESHOOTING Model 70160 Fault - Logic Troubleshooting Explanatory This fault - logic troubleshooting guide is a Diagram diagnostic aid in locating transmission problems. Symptom: Match the transmission symptoms with the problem Action statements and follow the action steps shown in the Step box diagrams.
  • Page 54 48-267 TROUBLESHOOTING Model 70160 Fault - Logic Troubleshooting Symptom: System Will Not Operate In Either Direction Check Check External Inspect Pump Check Oil Level in Control Bypass Valve Charge (If used) Reservoir Linkage Pressure Below Level Defective Defective Fill to Repair Repair Proper...
  • Page 55 48-267 TROUBLESHOOTING...
  • Page 56 48-267 START-UP PROCEDURE Model 70160 Start-up Procedure When starting a new or rebuilt transmission system, it is 6 After the system starts to show signs of fill, slowly move extremely important to follow the start-up procedure. It pump camplate to a slight cam angle. Continue to operate prevents the chance of damaging the unit which might occur if system slowly with no load on motors until system the system was not properly purged of air before start-up.

  • Page 57: 48-266 Gear Pump

    48-266 GEAR PUMP REF# PART# DESCRIPTION QUANTITY Body 76-197-01 Front Plate Washer 76-197-06 Cap Screw 76-197-07 Retaining Ring Shaft Seal 33-061-15 Washer O-Ring Backup Gasket Seal Wear Plate 76-197-04 Shaft (comes with Idler Gear) 76-197-02 Back Plate Plug 76-197-08 Seal Kit...
  • Page 58 48-266 REPAIR DISASSEMBLY INSTRUCTIONS...
  • Page 59 48-266 REPAIR DISASSEMBLY INSTRUCTIONS Series 26 - Model 26000 Multiple Gear Pump Disassembly 8 To separate the third pump body from adapter plate use a 11 Remove wear plate and o-ring seal , noting position of soft faced hammer and tap to loosen and then lift straight up. open or closed side of wear plate.
  • Page 60 48-266 REPAIR DISASSEMBLY INSTRUCTIONS Series 26 - Model 26000 Multiple Gear Pump 15 Remove second or middle pump body from second set of 20 Tap front adapter plate with a soft faced hammer to loosen gears. and remove adapter plate. After removing adapter, turn it over and remove the second o-ring seal .
  • Page 61 48-266 REPAIR DISASSEMBLY INSTRUCTIONS...
  • Page 62 48-266 REPAIR INSPECTION Series 26 - Model 26000 Multiple Gear Pump Inspection Inspect Parts for Wear Front plate and Backplate Inspection General 1 Oil groove in bushings in front plate should be in line with dowel pin holes and 180° apart. The oil grooves in the 1 Clean and dry all parts.
  • Page 63 48-266 REPAIR REASSEMBLY INSTRUCTIONS Series 26 - Model 26000 Multiple Gear Pump Reassembly General Information 4 Install new seal and new backup gasket into all wear plates. It is important that the relationship of the backplate, bodies, Note in the middle of the backup gasket a flat section or adapters, wear plates, and front plate is correct.
  • Page 64 48-266 REPAIR REASSEMBLY INSTRUCTIONS Series 26 - Model 26000 Multiple Gear Pump Reassembly 7 Install new o-ring in groove of adapter plate (side with 11 Aligning the previously scribed line of body and adapter, bushings below surface). install the second pump body onto the adapter plate. Align the scribed lines of the first body and front adapter, install adapter plate onto the drive shaft and body.
  • Page 65 Series 26 - Model 26000 Multiple Gear Pump 48-266 REPAIR REASSEMBLY INSTRUCTIONS 15 Lubricate and install the new o-ring seal onto the rear 20 Lubricate and install the third drive gear onto the shaft and adapter plate. into the pump body aligning key with slot in gear. 21 Lubricate and install the third idler gear assembly into body and adapter.
  • Page 66 Series 26 - Model 26000 Multiple Gear Pump 48-266 REPAIR REASSEMBLY INSTRUCTIONS 25 Place washer over drive shaft into housing. Liberally oil shaft seal and install over drive shaft, carefully so that rubber sealing lips are not cut. 26 Place 1-5/16 in. O.D. sleeve over shaft and press in shaft seal until its below the surface of the front plate 6.1mm [.24 in].Install retaining ring if required optional feature is used.
  • Page 67 48-266 TROUBLESHOOTING Series 26 - Model 26000 Multiple Gear Pump Placing Series 26 Gear Pump Back into Operation When test stand is available . Start Pump Mount Pump Connect Run For Test Stand Fluid Supply 3 Minutes Each Load Load Load Zero Intermittently...
  • Page 68 48-266 TROUBLE SHOOTING Series 26 - Model 26000 Multiple Gear Pump Trouble Shooting Problem Possible Cause Correction Cavitation a. Oil too heavy. a. Change to proper viscosity b. Oil filter plugged. b. Clean filter. c. Suction line plugged or too small. c.

  • Page 69: 76-238 Rear Wheel Motor

    76-238 REAR WHEEL MOTOR (14.5 CI) REF# PART# DESCRIPTION QUANTITY Water & Dirt Seal 2† 13-615-05 Service Housing Assembly Inner Seal 4† 13-032-27 Thrust Bearing 5† 13-032-28 Inner Bearing 13-032-29 Thrust Bearing 76-238-03 Drive Link Ring Seal 13-032-31 Manifold 13-032-32 Commulator Assembly (matched set) 13-032-33...
  • Page 70 76-238 TROUBLESHOOTING CHECKLIST Torqmotor™ Service Procedure HY13-1527-M1/US Troubleshooting Checklist TF, TG, TH and TL Series Trouble Cause Remedy Oil Leakage 1. Hose fittings loose, worn or Check & replace damaged damaged. fittings or “O” Rings. Torque to manufacturers specifications. 2. Oil seal rings (4) deteriorated by Replace oil seal rings by disassembling excess heat.
  • Page 71 76-238 SERVICING TOOL LIST Torqmotor™ Service Procedure HY13-1527-M1/US TF, TG, TH and TL Series Tools and Materials Required for Servicing • Clean, petroleum-based solvent • Emery paper • Vise with soft jaws • Air pressure source Torqmotor™ Service Procedure • Arbor press HY13-1527-M1/US Technical Information TF, TG, TH and TL Series...
  • Page 72 Torqmotor™ Service Procedure HY13-1527-M1/US 76-238 ASSEMBLY REFERENCE DRAWING Torqmotor™ Exploded View TF, TG, TH and TL Series Typical Assembly Item Description Wear Plate 18. Housing Special Bolts (5, 6, or 7) 10. Drive Link 18a. O-Ring (2) 1a. Special Bolts (7) 11.
  • Page 73 76-238 DISASSEMBLY AND INSPECTION Torqmotor™ Service Procedure HY13-1527-M1/US Disassembly and Inspection TF, TG, TH and TL Series Preparation Before Disassembly • Before you disassemble the Torqmotor™ unit or any of its components read this entire manual. It provides important information on parts and procedures you will need to know to service the Torqmotor™. •...
  • Page 74 76-238 DISASSEMBLY INSTRUCTIONS Torqmotor™ Service Procedure HY13-1527-M1/US Disassembly and Inspection TF, TG, TH and TL Series Reference Exploded Assembly View Place 1. Place the Torqmotor™ in a soft jawed vise, with coupling shaft (12) pointed down and Torqmotor the vise jaws clamping firmly on the sides in a vise of the housing (18) mounting flange or port bosses.
  • Page 75 76-238 DISASSEMBLY INSTRUCTIONS Torqmotor™ Service Procedure HY13-1527-M1/US Disassembly and Inspection TF, TG, TH and TL Series Remove end 4. Remove end cover assembly (2) and seal cover & ring (4). Discard seal ring. SEE FIGURE 6. inspect bolts NOTE NOTE: Refer to the appropriate “alternate cover construction”...
  • Page 76 Torqmotor™ Service Procedure HY13-1527-M1/US 76-238 DISASSEMBLY INSTRUCTIONS Disassembly and Inspection TF, TG, TH and TL Series Remove & 8. Remove commutator (5) and seal ring (3) inspect Remove seal ring from commutator, using commutator an air hose to blow air into ring groove until seal ring is lifted out and discard seal ring.
  • Page 77 76-238 DISASSEMBLY INSTRUCTIONS Torqmotor™ Service Procedure HY13-1527-M1/US Disassembly and Inspection TF, TG, TH and TL Series NOTE NOTE: Series TG or TH may have a rotor set with two stator halves (8B & 8D) with a seal ring (4) between them and two sets of seven vanes (8C &...
  • Page 78 76-238 DISASSEMBLY INSTRUCTIONS Torqmotor™ Service Procedure HY13-1527-M1/US Disassembly and Inspection TF, TG, TH and TL Series Check coupling 14. Check exposed portion of coupling shaft shaft for rust or (12) to be sure you have removed all signs corrosion of rust and corrosion which might prevent its withdrawal through the seal and bearing.
  • Page 79 76-238 DISASSEMBLY INSTRUCTIONS Torqmotor™ Service Procedure HY13-1527-M1/US Disassembly and Inspection TF, TG, TH and TL Series Remove shaft 17. Remove shaft seal (16), backup ring (17), seal, backup and backup washer (25) from housing washer & backup by working them around unseated thrust ring washers (14) and thrust bearing (15) and out of the housing.
  • Page 80 76-238 DISASSEMBLY INSTRUCTIONS Torqmotor™ Service Procedure HY13-1527-M1/US Disassembly and Inspection TF, TG, TH and TL Series Inspect housing 20. If the housing (18) assembly has passed bearing inspection to this point, inspect the housing bearings (19) and (13) and if they are captured in the housing cavity the two thrust washers (14) and thrust bearing (15).
  • Page 81 Torqmotor™ Service Procedure 76-238 ASSEMBLY INSTRUCTIONS HY13-1527-M1/US Torqmotor™ Assembly TF, TG, TH and TL Series • Replace all seals and seal rings with new ones each time you reassemble the Torqmotor™ unit. Lubricate all seals and seal rings with SAE 10W40 oil or clean grease before assembly. •...
  • Page 82 Torqmotor™ Service Procedure 76-238 ASSEMBLY INSTRUCTIONS HY13-1527-M1/US Torqmotor™ Assembly TF, TG, TH and TL Series NOTE NOTE: Bearing mandrel must be pressed against the lettered end of bearing shell. Take care that the housing bore is square with the press base and the bearing is not cocked when pressing a bearing into the housing.
  • Page 83 Torqmotor™ Service Procedure HY13-1527-M1/US 76-238 ASSEMBLY INSTRUCTIONS Torqmotor™ Assembly TF, TG, TH and TL Series Place housing 4. Invert housing (18) assembly into a soft assembly into jawed vise with the coupling shaft bore vise down, clamping against the mounting flange.
  • Page 84 Torqmotor™ Service Procedure 76-238 ASSEMBLY INSTRUCTIONS HY13-1527-M1/US Torqmotor™ Assembly TF, TG, TH and TL Series Assemble backup 6. A housing (18) that did not require washer & seal replacement of the bearing package will require that the two “captured” thrust washers (14) and thrust bearing (15) be unseated and vertical to the counterbore and the new backup ring (17), new backup...
  • Page 85 Torqmotor™ Service Procedure 76-238 ASSEMBLY INSTRUCTIONS HY13-1527-M1/US Torqmotor™ Assembly TF, TG, TH and TL Series Install coupling 8. Be sure that a generous amount of clean shaft corrosion resistant grease has been applied to the lower (outer) housing bearing (19). Install the coupling shaft (12) into housing (18), seating it against the second thrust washer (14).
  • Page 86 76-238 ASSEMBLY INSTRUCTIONS Torqmotor™ Service Procedure HY13-1527-M1/US Torqmotor™ Assembly TF, TG, TH and TL Series Install drive link 11. Install drive link (10) the long splined end down into the coupling shaft (12) and engage the drive link splines into mesh with the coupling shaft splines.
  • Page 87 76-238 ASSEMBLY INSTRUCTIONS Torqmotor™ Service Procedure HY13-1527-M1/US Torqmotor™ Assembly TF, TG, TH and TL Series Apply clean grease to a new seal ring (4) and assemble it in the seal ring groove in the rotor set contact side of manifold (7). SEE FIGURE 46.
  • Page 88 76-238 ASSEMBLY INSTRUCTIONS Torqmotor™ Service Procedure HY13-1527-M1/US Torqmotor™ Assembly TF, TG, TH and TL Series Assemble seal & 16. Assemble a new seal ring (3) flat side commutator up, into commutator (5) and assemble commutator over the end of drive link (10) onto manifold (7) with seal ring side up.
  • Page 89 76-238 ASSEMBLY INSTRUCTIONS Torqmotor™ Service Procedure HY13-1527-M1/US Torqmotor™ Assembly TF, TG, TH and TL Series Assemble seal 19. Assemble a new seal ring (4) into end ring & end cover cover (2) and assemble end cover onto the commutator set. SEE FIGURES 54 and 55. Figure 54 NOTE NOTE: If the end cover has a valve (24),...
  • Page 90 76-238 ASSEMBLY INSTRUCTIONS Torqmotor™ Service Procedure HY13-1527-M1/US Torqmotor™ Assembly TF, TG, TH and TL Series NOTE NOTE: The special bolts required for use with the relief or shuttle valve (24) end cover assembly (2) are longer than the bolts required with standard and cover assembly.
  • Page 91 76-238 ASSEMBLY FINAL CHECKS Torqmotor™ Service Procedure HY13-1527-M1/US Final Checks TF, TG, TH and TL Series Final Checks • Pressurize the Torqmotor™ with 100 p.s.i. dry air or nitrogen and submerge in solvent to check for external leaks. • Check Torqmotor™ for rotation. Torque required to rotate coupling shaft should not be more than 50 ft.

  • Page 92: 48-258 3-Bank Hydraulic Valve

    48-258 3 -BANK HYDRAULIC VALVE REF# PART# DESCRIPTION QUANTITY 78-415-13 - 16 SAE 8 Screw Plug 78-415-12 Check Valve Assembly HDM12 78-415-03 O-Ring Seal 78-415-04 Flanged Washer HDM10 78-415-02 Spool HDM10 78-415-09 Lever Group HDS11 78-415-10 Metric Socket Screw M5 x .8 x 45 78-418 Bent Handle Tapered Knob...
  • Page 93 48-501 HOPPER DUST SHIELD REF# PART# DESCRIPTION QUANTITY 48-320 Hopper Dust Cover HSTP-516-18-075 Phillips Machine Screw, - 18 x HNFL-516-18 Flange Whiz-loc Nut , - 18...
  • Page 94 NOTES...

  • Page 95: Decal List

    25-320 Decal, Max Weight Front Hopper Sides 25-358 Decal, Smithco 12" Tailgate 25-362 Decal, Danger Fire Tank Cover Panel 25-372 Decal, Smithco Star 4" Belt Guard 27-077 Decal, Smithco Round Steering Cap 27-093 Decal, Hydraulic Oil Tank Cover Panel 34-147 Decal, Smithco Star...

  • Page 96: Quick Reference Replacement Parts

    QUICK REFERENCE REPLACEMENT PARTS REPLACEMENT FILTERS 20-576-01 Hydraulic Oil Filter 13-531 Engine Oil Filter 15-165-01 Air Filter Element with Pre-Cleaner 42-076-03 Remote Air Filter Element 42-834-03 Remote Safety Filter 50-403 Fuel Filter 18-462 Oil Drain Valve Briggs & Stratton 25 755 14-S REPLACEMENT BELTS 48-259 Finger Reel Belt...
  • Page 97 30 days from discovery of the condition. If you need help locating an Authorized Smithco Distributor, or if you have questions regarding your warranty rights or responsibilities, you may contact us at: Smithco Product Support Department 200 West Poplar Ave.
  • Page 98 This warranty does not apply to normal “wear and tear” items. Normal “Wear and Tear” includes, but is not limited to, damage to seats due to wear or abrasion, worn painted surfaces, scratched decals or windows, etc. Smithco may require the return of failed parts or components in order to determine the validity of any warranty claim.

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48-500-aSweepstar 48h

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