Toro Sand Pro 5020 User Manual

PART NO. 98957SL, Rev. B Service Manual Sand ProR 2020/3020/5020 Preface The purpose of this publication is to provide the service technician with inf

Safety and Instruction Decals The following safety and instruction decals are installed on the Sand Pro 5020. If any become damaged or illegible, repl

Shaft Seal Removal NOTE: The hydrostat uses lip seals on the main, con-trol, and trunnion shafts. Replacement of these seals re-quires no disassembly

Acceleration Valve Removal (Fig. 43) 1. Remove plugs and O–rings from both sides of the end cap. 2. Slide acceleration valve and spring out of one s

Traction Pump Disassembly 1. Remove charge pump from variable housing (see Charge Pump Disassembly). 2. Remove lip seals from shaft and trunnion sha

Traction Pump Inspection 1. Inspect end cap (Fig. 45). A. Bearing needles must remain in the cage, roll freely, and not be bent or damaged. Remove an

11 Traction Pump Assembly 1. Make sure all parts are cleaned thoroughly and free of dirt and debris. 2. Secure ball bearing onto shaft with retainin

NOTE: When properly installed, a light spring compres-sion can be felt when pushing the cylinder block assem-bly into the variable housing. 9. Posit

Front Wheel Motor 15 12 11 8 18 2116 20 14 22 1 4 6 9 5 10 7 17 23 19 FRONT RIGHT 45 to 55 ft–lb 6.2 to 7.6 kg–m 200 to 400 ft–lb 27.7 to 55.3 kg–m Fi

8. Remove both socket head screws and lock nuts se-curing the hydraulic motor the fork. WARNING Before jacking up the machine, review and follow Jack

Sand Pro 2020/3020/5020Hydraulic System (Rev. A) Page 4 – 58Rear Wheel Motors (SP 2020/3020)1. Lug nut2. Drive stud3. Wheel4. Wheel hub5. Lock nut6.

Removal (Fig. 57 or 55) 1. Before removing any parts from the hydraulic sys-tem, park the machine on a level surface, lower attach-ment, and stop the

Chapter 2 Product Records and Maintenance Table of Contents PRODUCT RECORDS . . . . . . . . . . . . . . . . . . . . . . . . . 1 EQUIVALENTS AND CONVE

Sand Pro 2020/3020/5020Hydraulic System (Rev. A) Page 4 – 60Rear Wheel Motors (SP 5020)1. O–ring2. O–ring3. O–ring4. O–ring5. Woodruff key6. Brake lev

Removal (Fig. 57 or 58) 1. Before removing any parts from the hydraulic sys-tem, park the machine on a level surface, lower attach-ment, and stop the

Sand Pro 2020/3020/5020Hydraulic System (Rev. A) Page 4 – 62Wheel Motor Service1. Dirt & water seal2. Bearing3. Housing4. Back–up washer5. Seal r

Disassembly (Fig. 60) it could dislodge during service and cause in-WARNING If the wheel motor is not held firmly in the vise, jury. 1. Place wheel m

9. Remove seal ring (5) that is between the rotor set and wearplate (18). 10. Remove drive link (13) from the coupling shaft (11) if it was not remo

6. Inspect manifold (22) for cracks, surface scoring, peening, chipping. Replace manifold if any of these conditions exist. A polished pattern on the

14. If the housing (3) has passed inspection to this point, inspect outer bearing (2), inner bearing (10), thrust washers (8), and thrust bearing (9).

6. Apply masking tape around splines or keyway on coupling shaft (11) to prevent damage to seal. IMPORTANT: The outer bearing (2) is not lubricated

NOTE: The rotor set consists of the rotor (19), vanes (20), and stator (21). Rotor set components may be-come disassembled during service procedures.

E. Grasp the output end of coupling shaft (11) with 23. Torque both plugs from 9 to 12 ft–lb (1.2 to 1.7 locking pliers or other appropriate turning

Equivalents and Conversions Product Records and Maintenance Page 2 – 2 Sand Pro 2020/3020/5020

Sand Pro 2020/3020/5020Hydraulic System (Rev. A) Page 4 – 70Hydraulic Tank (SP 2020/3020)1. Oil cap2. Shoulder screw3. Worm clamp4. Hydraulic tank5. 4

Removal (Fig. 86) 1. Before removing any parts from the hydraulic sys-tem, park machine on a level surface, set brake, lower attachment, and stop eng

Sand Pro 2020/3020/5020Hydraulic System (Rev. A) Page 4 – 72Hydraulic Oil Cooler (SP 2020/3020)1. Hood2. Oil cooler3. Rubber clamp4. T–nut5. 90o hydra

Removal (Fig. 87) 1. Before removing any parts from the hydraulic sys-tem, park machine on a level surface, set brake, lower attachment, and stop eng

Sand Pro 2020/3020/5020Hydraulic System (Rev. A) Page 4 – 74Hydraulic Tank and Oil Cooler (SP 5020)1. Tether retainer2. Tether3. Tank cap4. Filler scr

2 CAUTION drostat from the frame. One person should operate the chain fall or jack while the other person guides the engine and hy-3. Plug both ends

Oil Cooler Installation (Fig. 88) 1. Make sure both hydraulic openings to the oil cooler are clean. Remove plugs from the cooler openings. 2. Reinst

Chapter 5 Electrical Systems Table of Contents ELECTRICAL SCHEMATICS AND DIAGRAMS . . . 2 ELECTRICAL SYSTEM QUICK CHECKS . . . . . . . . 9 Sand Pr

BLACK Sand Pro 2020/3020/5020Page 5 – 2Electrical Systems OPTIONALLIGHTSBLUE/WHITE BLACKBLACK BLACK BLACK RED/WHITE BLUE BLUE GREEN RED BLACK –+NEUTRA

HOUR START METERSOLENOIDGROUND FUSE ENGINE J3 J4 J5 J6 J7 J8P1 P3 P4 J111 1 1 1 1 1 A B 1 1 1 W8W10W2 W3 W14 W13 W5 W6 W5 W7 W10 W1

Product Recordsand Maintenance Sand Pro 2020/3020/5020 Page 2 – 3 Product Records and Maintenance Torque Specifications

OPTIONAL (–)(+)HR SP SPLICEFUSIBLE LINKFL ENGINE FUELREG. SP FL FUSE10 A S L B A M G FLSP (–) (+) FRAME FRAME NEUTRAL(CLOSED IN NEUTRAL) OFFRUNG+M+AB

ENGINEMETER SOLENOID GROUND ALT FUEL MAGNETO HOUR START FRAME FUSE J3 J4 J6 J5 J7 J8 P1 P3 P4 J11 WIRE IDENTIFICATION LABEL COLOR AWG

Special Tools Order special tools from the TORO SPECIAL TOOLS Some tools may also be available from a local supplier. AND APPLICATIONS GUIDE (COMMERCI

Troubleshooting CAUTION Remove all especially rings and watches, before doing any electrical trouble-cables unless the test requires battery voltage.

Starting Problems (continued) Problem Possible Causes Engine cranks, but does not start. Wiring to start circuitry (see Wiring Schematics) is loose,

Electrical System Quick Checks Battery Test (Open Circuit Test) Use a multimeter to measure the voltage between the battery terminals. Set multimeter

Component Testing For accurate resistance and/or continuity checks, elec-trically disconnect the component being tested from the circuit (e.g. unplug

Hour Meter IMPORTANT: Make sure to observe polarity on the meter label when testing. Damage to the meter may result from an improper connection. 1. C

Starter Solenoid NOTE: Prior to taking small resistance readings with a digital multimeter, short the test leads together. The me-ter will display a

Service and Repairs NOTE: For more component repair information, see the Briggs and Stratton Vanguard Service and Repair Manual for 4–Cycle, V–Twin C

Sand Pro 2020/3020/5020Page 2 – 4Product Records and MaintenanceLubricationCAUTIONBefore servicing or making adjustments to themachine, stop engine, s

Sand Pro 2020/3020/5020Page 5 – 14Electrical SystemsBattery ServiceThe battery is the heart of the electrical system. Withregular and proper service,

Inspection, Maintenance, and Testing (Fig. 12) 1. Perform following inspections and maintenance: A. Check for cracks caused by overly tight hold– dow

E. Connect a battery load tester to the battery ter-minals following the manufacturer’s instruc-tions. Connect a digital multimeter to the battery t

2. Determine the charging time and rate using the manufacturer’s battery charger instructions or the following table. Battery Battery Charge Level Re

Optional Lights After market lighting kits are available for the SP 2020/3020 and SP 5020. These kits can be electrically connected to the machine’s e

Chapter 6Wheels, Brakes, and Miscellaneous Table of Contents SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ADJUSTMENTS .

Specifications Item Description Front tire pressure 4 to 6 PSI, (0.28 to 0.41 bar) Rear tire pressure 4 to 6 PSI, (0.28 to 0.41 bar) Wheel lug nut

Sand Pro 2020/3020/5020 Page 6 – 3 Wheels, Brakes,and MiscellaneousAdjustmentsAdjust Steering ChainNOTE: Since the chain and sprocket are subjected t

Adjust Brake (SP 2020/3020) CAUTION check the brakes in a wide open area that is flat and free of other persons and obstructions. Before and after adj

Service and Repairs Seat (SP 2020/3020) 1 5 3 4 2 9 10 11 2 4 6 12 7 8 6 13 14 15 16 Figure 5 1. Seat 7. Cap screw 12. Angle bracket 2. Cap screw 8. S

Sand Pro 2020/3020/5020Page 2 – 5Product Records and MaintenanceFigure 5Figure 6Product Recordsand Maintenance

Front Wheel (SP 2020) 10 6 2 1 11 5 5 4 7 13 5 7 6 3 12 5 9 4 8 2 1 FRONT RIGHT 14 3 Figure 6 1. Hex nut 6. Bearing 11. Lug nut 2. Lock washer 7. Loc

Installation (Fig. 6) 4. Secure bearing flanges to the front fork with car-1. Position front axle and drive studs through the wheel rim. Secure axle

Front Wheel (SP 3020 and SP 5020) FRONT RIGHT 9 12 8 7 4 15 16 13 2 5 1 6 3 14 10 11 17 Figure 7 1. Set screw 7. Bearing tab 13. Spindle 2. Locking co

9. If the wheel hub needs replacing, remove hydraulic motor from hydraulic lines, and remove hub from motor (see Front Wheel Removal in Chapter 4 – H

Sand Pro 2020/3020/5020Page 6 – 10Wheels, Brakes, and MiscellaneousRear Wheels and Brakes1. Lug nut2. Drive stud3. Wheel4. Hub5. Lock nut6. Motor sha

NOTE: The brake lever, backing plate, retaining clip, return springs, brake shoes, and cam shaft can be re-moved as a complete brake assembly. 7. If

Brake Linkages (SP 2020/3020) 5 7 12 11 10 15 13 14 16 7 17 4 3 7 2 1 9 18 8 2019 6 8 9 21 RIGHT FRONT Figure 101. Cap screw 8. Clevis 15. Side flange

Brake Linkages (SP 5020) 30 29 31 2826 27 1 2 3 4 5 6 7 8 9 10 16 17 18 19 20 21 22 23 24 13 1415 20 21 17 4 25 32 11/12 RIGHT FRONT Figure 12 1. Curv

Sand Pro 2020/3020/5020Page 6 – 14Wheels, Brakes, and MiscellaneousFront Fork and Steering (SP 2020 and Older SP 3020 Models)1. Steering wheel2. Roll

Sand Pro 2020/3020/5020 Page 6 – 15 Wheels, Brakes,and MiscellaneousFront Fork and Steering (Newer SP 3020 Models)1. Steering wheel2. Roll pin3. Uppe

Product Records and Maintenance Page 2 – 6 Sand Pro 2020/3020/5020

Upper Steering Disassembly (Fig. 13 and 14) NOTE: The front fork and steering assemblies on the SP 2020 and SP 3020 are almost identical. However, th

Lower Steering Disassembly (Fig. 13 and 14) NOTE: If disassembly of the steering mechanism be-low the steering knuckle is required, proceed as follow

4. Position fork shaft up through frame. Install bearing cone and bearing washer onto the shaft. If bearing con-es were damaged, install new bearing

Sand Pro 2020/3020/5020 Page 6 – 19 Wheels, Brakes,and MiscellaneousSeat (SP 5020)1. R–clamp2. Lock washer3. Cap screw4. Manual tube5. Seat adjust pl

Sand Pro 2020/3020/5020Page 6 – 20Wheels, Brakes, and MiscellaneousSteering (SP 5020)1. Steering wheel2. Roll pin3. Cap screw4. Handle5. Steering adj

Upper Steering Disassembly (Fig. 19) NOTE: If disassembly above the steering knuckle is re-quired, use the following procedure. 1. Park machine on a

Front Fork (SP 5020) Removal (Fig. 20) NOTE: If disassembly of the front fork and its bearings is required, proceed as follows: WARNING Before jackin

Hood and Dash Panel (SP 2020/3020) Removal 1. Park machine on a level surface, lower attachment, stop engine, engage parking brake, and remove key fr

Fenders (SP 5020) Left Fender(Seat Base )Removal (Fig. 44) 1. Park machine on a level surface, lower attachment, stop engine, engage parking brake, a

_________________________ _________________________ _________________________ _________________________ _________________________ EQUIPMENT OPERATION

Commercial Products E The Toro Company – 1998

Sand Pro R 2020/3020/5020 Maintenance Schedule Minimum Recommended Maintenance Intervals: Check Battery Fluid Level Check Battery Cable Connections

Sand Pro R 2020/3020/5020 Daily Maintenance Checklist Daily Maintenance: (duplicate this page for routine use) Maintenance Check Item b Daily Mainte

Sand Pro 2020/3020/5020

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Chapter 3 Engine Table of Contents INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SPECIFICATIONS . . . . . . . . . . . .

Introduction This Chapter gives information about specifications, maintenance, troubleshooting, testing, and repair of the gasoline engines used in th

Specifications Item Description Make / Designation Briggs and Stratton Vanguard, 4–Cycle, V–Twin Cylinder, OHV, Air Cooled, Gasoline Engine Horse Po

General Information Check Engine Oil CAUTION Before servicing or making adjustments to the machine, make sure of the following: stop en-gine, engage p

Fuel Shutoff Valve This valve should be shut when removing the engine or placing the unit in long term storage. On the SP 2020/3020, the shutoff valve

Fill Fuel Tank IMPORTANT: The Toro Company strongly recom-mends using fresh, clean, unleaded regular grade gasoline in Toro gasoline powered products.

Adjustments Adjust Throttle Control Proper throttle operation is dependent upon the proper adjustment of the throttle control. Before adjusting the ca

Sand Pro 2020/3020/5020Page 3 – 8EngineService and RepairsChange Engine Oil and FilterChange oil initially after the first 8 hours of operation.Therea

Service Remote Air Cleaner Inspect air cleaner filter element every 100 hours of op-eration. Replace every 400 hours or when dirty or dam-aged 1. Che

Table Of Contents Chapter 1 – Safety Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 1 – 1 Jacking Instructions. . . . . . . .

Throttle and Choke Controls 1 9 3 7 2 8 1 1 4 44 6 5 2 2 Figure 10 1. Knob 4. Cap screw 7. Hex nut 2. Throttle control 5. Dash Panel (SP 2020/3020

Throttle Control Installation 1. Secure throttle control to the dash panel or right fender with both cap screws and lock nuts. Install throttle contr

Choke Control Installation 1. On the SP 2020/3020 insert choke cable and control through the dash panel. Secure choke control to the panel with lock

Remote Air Cleaner (SP 2020/3020) Remote Air Cleaner Removal 1. Park machine on a level surface, lower attachment, stop the engine, engage parking br

Remote Air Cleaner (SP 5020) Remote Air Cleaner Removal 1. Park machine on a level surface, lower attachment, stop the engine, engage parking brake,

Muffler (SP 5020) Muffler Removal 1. Park machine on a level surface, lower attachment, stop the engine, engage parking brake, and remove the key fro

Muffler (SP 2020/3020) Muffler Removal 1. Park machine on a level surface, lower attachment, stop the engine, engage parking brake, and remove the ke

Muffler Installation 1. Position muffler through the bottom of the machine to the muffler bracket. Insert cap screw with flat washer through the muff

Sand Pro 2020/3020/5020Page 3 – 18EngineFuel Tank (SP 2020/3020)Figure 321. Fuel cap2. Fuel tank3. Grommet4. Fuel tank base5. Lock nut6. Philips pan

Fuel Tank Removal (Fig. 32) 1. Park machine on a level surface, lower attachment, stop the engine, engage parking brake, and remove the key from the

Sand Pro 2020/3020/5020

Sand Pro 2020/3020/5020Page 3 – 20EngineFuel Tank (SP 5020)Figure 341. Fuel tank2. Fuel cap3. Steering boot4. Boot retainer5. R–clamp6. Self tapping

3. Remove adjustment lever from tilt lock pin by first re-moving cap screw (Fig. 36). 4. Drain fuel tank as follows: A. Close fuel shutoff valve. B

Sand Pro 2020/3020/5020Page 3 – 22EngineEngine (SP 2020/3020)Figure 371. Muffler2. Cap screw3. Flat washer4. Muffler clamp5. Hex nut6. Screen7. Muffle

Engine Removal (Fig. 37) 1. Park machine on a level surface, lower attachment, stop engine, engage parking brake, and remove key from the ignition sw

Engine Installation (Fig. 37) CAUTION One person should operate the chain fall or hoist while the other person guides the engine into the frame. 1. I

Replace Spark Plugs Replace spark plugs after every 800 operating hours or yearly, which ever occurs first. Recommended air gap is 0.030 inch (0.762 m

Sand Pro 2020/3020/5020Page 3 – 26EngineEngine (SP 5020)Figure 431. Air cleaner knob2. Air cleaner cover3. Cover seal4. Air cleaner knob5. Not used

Engine Removal (Fig. 43) 1. Park machine on a level surface, lower attachment, stop engine, engage, and remove key from the ignition switch. 2. Choc

10. Disconnect red positive cable cable (solenoid) from the starter (Fig. 47). 11. Remove lock nut and cap screw securing black ground wire and black

3. Tighten both set screws on the engine hub to secure 6. Install seat base with seat attached to the frame as hub to the engine shaft (Fig. 46). fo

Chapter 1 Safety Table of Contents GENERAL SAFETY INSTRUCTIONS . . . . . . . . . . . . 1 Before Operating . . . . . . . . . . . . . . . . . . . . . .

Clean Cylinder Head Fins Avoid overheating and possible damage to the engine. Keep cooling fins on cylinder heads clean. 1. Park machine on a level s

Chapter 4 Hydraulic Systems Table of Contents SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 GENERAL INFORMATION . . . .

Rev. BSand Pro 2020/3020/5020Hydraulic System Page 4 – 2SpecificationsItem DescriptionHydrostatic Tra

General Information Hydraulic Hoses Hydraulic hoses are subject to extreme conditions such as pressure differentials during operation and exposure to

SAE Straight Thread O–Ring Port – Non–adjustable 1. Make sure both threads and sealing surfaces are free of burrs, nicks, scratches, or any foreign m

Towing Traction Unit In case of emergency, the Sand Pro can be towed for a short distance. However, Toro does not recommend this as a standard procedu

Rev. BSand Pro 2020/3020/5020Hydraulic System Page 4 – 6Hydraulic SchematicsLIFT CYLINDERLIFT VALVEOI

LIFT VALVE Sand Pro 5020Hydraulic SchematicLIFT CYLINDER Sand Pro 2020/3020/5020 Page 4 – 7 M3 M2 RIGHT BA A WITH BLEED OFFFRONT LEFT M1 P1 B P2 R2R1

Hydraulic Flow Diagrams Traction Forward The traction circuit of the hydraulic system consists of a hydrostat connected in a closed loop circuit to th

Sand Pro 2020/3020/5020 Page 4 – 9 M2 RIGHT AB A WITH BLEED OFFLEFT M1 P1 B P2 R2R1 M3FRONT High Pressure Low Pressure (Charge) Return or Suction

While Operating 11. Exhaust fumes are hazardous and could be deadly, so do not run the engine in a confined area without ade-quate ventilation. 12. S

Traction Reverse The traction circuit operates essentially the same in re-verse as it does in forward. However, there are a few dif-ferences in operat

Sand Pro 2020/3020/5020 M2 RIGHT AB A WITH BLEED OFFLEFT M1 P1 B P2 R2R1 M3FRONT REVERSE High Pressure Low Pressure (Charge) Return or Suction Flo

Retract and Extend Lift Cylinder The hydraulic lift circuits for the SP 2020/3020 and SP 5020 function identically. Each machine has identical charge

Sand Pro 2020/3020/5020 Page 4 – 13 M2 RIGHT AB A WITH BLEED OFFLEFT M1 P1 B P2 R2R1 M3FRONT Extend and Retract lift CylinderHigh Pressure Low Pres

Special Tools Order these tools from the TORO SPECIAL TOOLS Some tools may also be available from a local supplier. AND APPLICATIONS GUIDE (COMMERCIA

Hydraulic Test Fitting Kit – TOR4079 This kit includes a variety of O–ring Face seal fittings to enable you to connect test gauges into the system. Th

Rev. BSand Pro 2020/3020/5020Hydraulic System (Rev. A) Page 4 – 16TroubleshootingThe table that follows contains information to assist introubleshooti

Sand Pro 2020/3020/5020 Hydraulic System (Rev. A)Page 4 -- 17Troubleshooting (cont.)Problem Possible CauseSystem operates in a jerky mannerwhen starti

Rev. BSand Pro 2020/3020/5020Hydraulic System (Rev. A) Page 4 – 18Troubleshooting (cont.)Problem Possible CauseAttachment raises, but will not stayup.

Testing The most effective method for isolating problems in the hydraulic system is by using hydraulic test equipment such as pressure gauges and flow

Maintenance and Service 20. Before servicing or making adjustments to the ma-chine, stop engine, remove key from the ignition, and pull the spark plug

TEST NO. 1: Traction Pump Flow (P1) A P1 B P2 R2 R1 IMPLEMENT RELIEF CHARGE RELIEF CHARGE CHECK CHARGE CHECK CHARGE PUMP TRACTION PUMP TO WHEEL FROM W

Procedure for Traction Pump Flow (P1) (Fig.12): 1. Make sure hydraulic oil is at normal operating tem-perature by operating the machine for approxima

TEST NO. 2: Charge Relief Valve (R2) and Implement Relief Valve (R1) Pressure A P1 B P2 R2 R1 IMPLEMENT RELIEF CHARGE RELIEF CHARGE CHECK CHARGE CHEC

Rev. BSand Pro 2020/3020/5020 Hydraulic System (Rev. A)Page 4 – 23Procedure for Charge Relief Valve (R2) and Imple-ment Relief Valve (R1) Pressure:1.

TEST NO. 3: Charge Pump (P2) Flow A P1 B P2 R2 R1 IMPLEMENT RELIEF CHARGE RELIEF CHARGE CHECK CHARGE CHECK CHARGE PUMP TRACTION PUMP TO WHEEL FROM WH

Procedure for Charge Pump (P2) Flow: 1. Make sure hydraulic oil is at normal operating tem-perature by operating the machine for approximately 10 min

TEST NO. 4: Wheel Motor Efficiency 3 1 2 M3 M2 RIGHT B A A FRONT LEFT M1 P1 B P2 R2 R1 IMPLEMENT RELIEF CHARGE RELIEF CHARGE CHECK CHARGE CHECK CHARGE

Procedure for Wheel Motor Efficiency: Note: Over a period of time, a wheel motor can wear internally. A worn motor may by–pass oil causing the motor

Adjustments Adjust Traction Pedal for Neutral If the machine “creeps” when the traction pedal is in the neutral position, the traction cam must be adj

Adjust Traction Pedal for Forward (SP 5020) If the jam nuts on the control rod are loosened or if the pedal is removed, adjusted traction pedal for fo

Jacking Instructions Figure 1 Use the following positions when jacking up the ma-chine: Jacking the Front End 1. On the SP 2020/3020, jack from below

Sand Pro 2020/3020/5020Hydraulic System (Rev. A) Page 4 – 30Adjust Lift Lever (SP 2020/3020)The lift lever should be adjusted if the attachment doesno

Service and Repairs Check Hydraulic Lines and Hoses nozzles that eject hydraulic fluid under high pres-sure. Use paper or cardboard, not hands, to wit

13. After the hydraulic system starts to show signs of fill, actuate lift control lever until the lift cylinder rod moves in and out several times. I

Change Hydraulic System Fluid and Filter The hydraulic system filter must be changed initially af-ter the first 8 hours of operation. Thereafter, it m

Sand Pro 2020/3020/5020Hydraulic System (Rev. A) Page 4 – 34Lift Valve (SP 2020/3020)1. Control panel decal2. Lift valve shroud3. Cap screw4. 90o hy

Removal (Fig. 25) 1. Before removing any parts from the hydraulic sys-tem, park machine on a level surface, engage parking brake, lower attachment, a

Sand Pro 2020/3020/5020Hydraulic System (Rev. A) Page 4 – 36Lift Valve (SP 5020)1. Lock nut2. 90o hydraulic fitting3. Cap screw4. Lock nut5. Lever kno

Removal (Fig. 26) 1. Before removing any parts from the hydraulic sys-tem, park machine on a level surface, engage parking brake, lower attachment, a

Lift Valve 1 2 3 4 5 6 7 12 1514 1 28 9 9 10 4 11 12 13 14 15 3 5 6 9 8 7 9 10 11 13 Figure 27 1. Plug 6. Cam pin 11. Spring 2. O–ring 7. Body 12. Sp

Lift Cylinder (SP 2020/3020) Removal 6 1. Before removing any parts from the hydraulic sys-tem, park the machine on a level surface, engage the parki

Safety and Instruction Decals The following safety and instruction decals are installed on the Sand Pro 2020/3020. If any become damaged or illegible,

Lift Cylinder(SP 5020) Removal 1. Before removing any parts from the hydraulic sys-tem, park the machine on a level surface, engage the parking brake

Lift Cylinder Service 1 14 2 3 4 5 7 8 9 10 11 12 6 2 7 3 5 4 6 10 11 13 14 13 15 15 89 12 Figure 30 1. O–ring 6. O–ring 2. Barrel 7. Poly–pack 3. Nut

22 Hydrostat (SP 2020/3020) 27 28 30 152 4 5 67 12 14 15 16 17 18 20 21 23 24 25 26 8 9 10 11 13 3 3 16 17 18 19 19 20 3132 29 33 34 29FRONT RIGHT Fig

7. Remove three cap screws securing the pump plate to the hydrostat while pulling the pump plate from the hy-drostat (Fig. 32). 8. Clean all hydraul

Sand Pro 2020/3020/5020Hydraulic System (Rev. A) Page 4 – 44Hydrostat (SP 5020)1. Hydraulic hose (to front motor)2. O–ring3. Hydraulic tube4. Not use

5. Disconnect air hose from the air cleaner. Remove lower shroud from the cooler mount to prevent damage to the fan when removing the hydrostat. 6.

3. Reinstall O–rings and hydraulic fittings to the hy-drostat. Observe match marks when tightening. 4. Install woodruff key (9) and fan hub (27) wit

Flush Hydraulic System IMPORTANT: Flush hydraulic system any time there is a severe component failure or the system is contaminated (oil appears milky

Rev. BSand Pro 2020/3020/5020Hydraulic System (Rev. A) Page 4 – 48Hydrostat Service1. Plug2. O–ring3. Spring4. Ball5. Plug6. O–ring7. End cap8. Accel

Charge Pump Disassembly 1. Make sure hydrostat is cleaned thoroughly before disassembly to prevent contamination. 2. Match mark charge pump housing