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Counterbalance Pressure (Using Pressure Gauge) PRESSURE GAUGE TO MOW CIRCUIT FROM DECK MANIFOLDS TO MOW CIRCUIT M1 M2 ST L P1 T P2 FAN DRIVE MANIFOLD FILTER MANIFOLD 4WD MANIFOLD COUNTERBALANCE MANIFOLD FROM DECK MOTORS FROM FRONT DECK MANIFOLD FROM RH DECK MANIFOLD FROM RH DECK CIRCUIT Hydraulic System Page 4 - 36 Groundsmaster 4100--D
Procedure for Counterbalance Pressure Test 1. Make sure hydraulic oil is at normal operating temperature by operating the machine for approximately 10 minutes. Make sure the hydraulic tank is full. 2. Park machine on a level surface with the cutting deck lowered and off. Make sure engine is off and the parking brake is engaged. Remove console cover. CAUTION Prevent personal injury and/or damage to equipment. Read all WARNINGS, CAUTIONS and Pre<strong>caution</strong>s for Hydraulic Testing at the beginning of this section. C. To decrease pressure setting, turn the adjustment screw on the valve in a counterclockwise direction. A 1/8 turn on the screw will make a measurable change in counterbalance pressure. D. Tighten locknut to secure adjustment. After adjustment, recheck counterbalance pressure. Readjust as needed. 9. When testing is completed, disconnect pressure gauge from test port. 3 4 2 3. Determine system charge pressure (see Traction Circuit Charge Pressure in this chapter). 4. Connect a 1000 PSI (70 bar) gauge to counterbalance test port on manifold under console (Fig. 25). 5. After installing pressure gauge, start engine and run at idle speed. Check for hydraulic leakage and correct before proceeding with test. 6. Operate the engine at full engine speed (2870 RPM) with no load on the system. Do not engage the cutting deck. GAUGE READING TO BE 225 PSI (15.5 bar) over system charge pressure (e.g. if charge pressure is 250 PSI (17.2 bar), counterbalance pressure should be 475 PSI (32.7 bar)). 7. Stop the engine and record test results. 8. Adjustment of the counterbalance valve can be performed as follows: NOTE: Do not remove the counterbalance valve from the hydraulic manifold for adjustment. A. Loosen locknut on counterbalance valve (Fig. 25). B. To increase pressure setting, turn the adjustment screw on the valve in a clockwise direction. A 1/8 turn on the screw will make a measurable change in counterbalance pressure. 1 1. Counterbalance test port 2. Counterbalance valve Figure 25 3. Locknut 4. Adjusting screw Hydraulic System Groundsmaster 4100--D Page 4 - 37 Hydraulic System
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Part No. 08162SL (Rev. A) Service M
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Table Of Contents Chapter 1 - Safet
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Table of Contents GENERAL SAFETY IN
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Maintenance and Service 1. Before s
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Safety and Instruction Decals Numer
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Chapter 2 Table of Contents Product
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Torque Specifications Recommended f
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Standard Torque for Dry, Zinc Plate
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Chapter 3 Kubota Diesel Engine Tabl
Page 19 and 20: Specifications Item Make / Designat
Page 21 and 22: Removal (Fig. 1) 1. Park machine on
Page 23 and 24: Removal (Fig. 5) CAUTION B The muff
Page 25 and 26: DANGER Because diesel fuel is highl
Page 27 and 28: Removal (Fig. 8) 1. Park machine on
Page 29 and 30: Engine Removal (Fig. 9) 1. Park mac
Page 31 and 32: 3. Slowly lower engine into the mac
Page 33 and 34: Coupler Removal (Fig. 16) NOTE: The
Page 35 and 36: Chapter 4 Hydraulic System Table of
Page 37 and 38: General Information Operator’s Ma
Page 39 and 40: Hydraulic Hose and Tube Installatio
Page 41 and 42: Adjustable Fitting (Fig. 8) 1. Make
Page 43 and 44: Hydraulic System This page is inten
Page 45 and 46: Traction Circuit: 4WD (Mow) The tra
Page 47 and 48: Traction Circuit: Transport (2WD) T
Page 49 and 50: Lower Cutting Deck A four section g
Page 51 and 52: Raise Cutting Deck A four section g
Page 53 and 54: Mow Circuit Hydraulic flow for the
Page 57 and 58: Steering Circuit A four section gea
Page 59 and 60: Engine Cooling Fan Circuit A four s
Page 61 and 62: Hydraulic Test Fitting Kit This kit
Page 63 and 64: Problem Traction power is lost or u
Page 65 and 66: Testing The most effective method f
Page 67 and 68: Procedure for Traction Circuit Char
Page 69: Procedure for Traction Circuit Reli
Page 73 and 74: Procedure for Rear Traction Circuit
Page 75 and 76: Procedure for Traction Circuit Redu
Page 77 and 78: Procedure for Cutting Deck Circuit
Page 79 and 80: Procedure for Cutting Deck Manifold
Page 81 and 82: Procedure for Cutting Deck Gear Pum
Page 83 and 84: Procedure for Cutting Deck Motor Ca
Page 85 and 86: Procedure for Steering Circuit Reli
Page 87 and 88: Procedure for Lift/Lower Circuit Re
Page 89 and 90: Procedure for Steering and Lift/Low
Page 91 and 92: Procedure for Engine Cooling Fan Ci
Page 93 and 94: Procedure for Engine Cooling Fan Ci
Page 95 and 96: Service and Repairs General Precaut
Page 97 and 98: Charge Hydraulic System NOTE: When
Page 99 and 100: NOTE: The front frame needs to be l
Page 101 and 102: Removal (Fig. 48) CAUTION The radia
Page 103 and 104: Removal (Fig 49) 1. Park machine on
Page 105 and 106: IMPORTANT: Use caution when clampin
Page 109 and 110: Removal (Fig. 53) 1. Park machine o
Page 119 and 120: Removal (Fig. 59) NOTE: The ports o
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4WD Manifold Service (Fig. 60) 1. M
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Removal (Fig. 61) 1. Read the Gener
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Filter Manifold Service (Fig. 62) F
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Hydraulic System This page is inten
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Removal (Fig. 64) 1. Park machine o
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CAUTION The centering springs are u
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Disassembly (Fig. 68) 1. Pump oil o
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8. Remove and discard back--up gask
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Fan Drive Manifold Service (Fig. 76
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Cutting Deck Motor Removal 1. Park
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IMPORTANT: Mark the relative positi
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Removal (Fig. 85) NOTE: The ports o
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PTO Manifold Service (Fig. 86) For
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Disassembly (Fig. 89) 1. Plug all p
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Disassembly (Figs. 92 and 93) 1. Re
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Chapter 5 Electrical System Table o
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Special Tools Order special tools f
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Troubleshooting CAUTION Remove all
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Cutting Deck Operating Problems The
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Adjustments Wing Deck Position Swit
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Component Testing For accurate resi
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Warning Lights Engine Oil Pressure
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Transport / 4WD Switch The transpor
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Seat Switch The seat switch is norm
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Hour Meter The hour meter is locate
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Start, Engine Shutdown, Seat, Alarm
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TEC -5002 Controller Groundsmaster
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Fuel Gauge The fuel gauge can be te
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Glow Controller The glow controller
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Dual Temperature Switch The dual te
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Traction Neutral Switch The tractio
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Fusible Links The Groundsmaster 410
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Cutting Deck Raise and Lower Switch
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Service and Repairs NOTE: For engin
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2. Conduct a hydrometer test of the
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Chapter 6 Axles, Planetaries and Br
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General Information Operator’s Ma
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3. Chock rear wheels and jack up fr
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This page is intentionally blank. A
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Removal (Fig. 6) 1. Park machine on
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NOTE: The planetary wheel drive ass
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This page is intentionally blank. A
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8. Remove cap screw and flange nut
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Bevel Gear Case and Axle Case The f
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Bevel Gear Case and Axle Case Insta
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9. Remove the bevel gear case/axle
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Axle Shafts The following procedure
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7. Secure the lock nut with the sta
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Differential Gear Inspection 1. Mea
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Pinion Gear to Ring Gear Engagement
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Chapter 7 Chassis Table of Contents
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Disassembly (Fig. 1) 1. Park machin
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CAUTION When changing attachments,
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Removal (Fig. 5) 1. Park machine on
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Disassembly (Fig. 8) 1. Disassemble
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NOTE: Most of the seat suspension c
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Removal 1. Park machine on a level
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Chapter 8 Cutting Deck Table of Con
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General Information CAUTION Never i
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This page is intentionally blank. C
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Removal (Fig. 1) 1. Position machin
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Removal (Fig. 6) 1. Position machin
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Cutting Deck Link Service Disassemb
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Installation (Fig. 13) 1. Position
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2. Install outer bearing spacer int
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Disassembly (Fig. 22) 1. Park machi
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Chapter 9 Foldout Drawings Table of
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CENTER DECK MANIFOLD COUNTERBALANCE
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CONTINUES FROM SHEET 1 CONTINUES FR
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CONTINUES TO SHEET 2 CONTINUES TO S
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CONTINUES TO SHEET 2 WHEN THE PTO S
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CONTINUES TO SHEET 2 CONTINUES TO S
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YELLOW GRAY YELLOW/BLACK VIOLET WHI
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FLOW DIVIDER SOLENOID Groundsmaster
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(STARTER) (STARTER) (STARTER) Groun
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BLUE GRAY VIOLET BLACK YELLOW GRAY
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