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Cutting Deck Gear Pump Flow (Using Tester with Pressure Gauges and Flow Meter) NOTE:CENTERGEARPUMP SECTION FLOW TEST SHOWN M1 M2 M1 M2 M1 M2 CENTER DECK MANIFOLD RV2 LC2 LH WING DECK MANIFOLD RH WING DECK MANIFOLD TO COOLING FAN CIRCUIT FILTER MANIFOLD FROM REAR AXLE MOTOR TO STEERING & LIFT CIRCUITS TRACTION CIRCUIT FLOW TRACTION CIRCUIT FLOW FROM 4WD MANIFOLD FROM FRONT WHEEL MOTORS CHARGE CIRCUIT RV2 LC2 OR RV2 LC2 OR RV1 RV1 RV1 S S S LC1 LC1 LC1 P1 P2 P1 P2 P1 P2 FROM COOLING FAN CIRCUIT TESTER Hydraulic System Page 4 - 46 Groundsmaster 4100--D
Procedure for Cutting Deck Gear Pump Flow Test NOTE: Over a period of time, the gears and wear plates in the gear pump can wear. A worn pump will by--pass oil and make the pump less efficient. Eventually, enough oil loss will occur to cause the cutting deck motors to stall under heavy cutting conditions. Continued operation with a worn, inefficient pump can generate excessive heat and cause damage to the seals and other components in the hydraulic system. 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. CAUTION IMPORTANT: Do not fully restrict oil flow through tester. In this test, the flow tester is positioned before the relief valve. Pump damage can occur if the oil flow is fully restricted. 8. Watch pressure gauge carefully while slowly closing the flow control valve until 2000 PSI is obtained. Verify with a phototac that the engine speed is 2400 RPM. 9. For a normal pump, gear pump flow should be approximately 14 GPM. Shut off engine. Record test results. 10.If measured flow is less than 12 GPM or if a pressure of 2000 PSI cannot be obtained, check for restriction in the pump intake line. If line is not restricted, remove gear pump and repair or replace as necessary. 11.Disconnect flow tester from hydraulic hose and manifold port. Reconnect hose to the manifold. 12.Repeat test for second pump section if required. 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. RIGHT FRONT 1 TO OIL COOLER Hydraulic System 3. Locate deck manifold for gear pump section to be tested. Disconnect hydraulic hose at deck manifold port (P1) (Fig. 36). 4. Install tester with pressure gauges and flow meter in series with the the disconnected hose and hydraulic manifold port (P1). 2 4 3 5. Make sure the flow control valve on the tester is fully open. 6. After installing tester, start engine and run at idle speed. Check for hydraulic leakage and correct before proceeding with test. 1. Center deck manifold 2. Hyd. hose to front P1 Figure 36 3. LH wing deck manifold 4. Hyd. hose to side P1 IMPORTANT: Do not run engine at full speed during testing. At full engine speed, cutting deck gear pump output can exceed 15 GPM and cause tester damage. 7. Using a phototac, adjust engine speed to 2400 RPM. Do not engage the cutting deck. Groundsmaster 4100--D Page 4 - 47 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
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Specifications Item Make / Designat
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Removal (Fig. 1) 1. Park machine on
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Removal (Fig. 5) CAUTION B The muff
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DANGER Because diesel fuel is highl
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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 and 70: Procedure for Traction Circuit Reli
Page 71 and 72: Procedure for Counterbalance Pressu
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: Procedure for Cutting Deck Manifold
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
Page 121 and 122: 4WD Manifold Service (Fig. 60) 1. M
Page 123 and 124: Removal (Fig. 61) 1. Read the Gener
Page 125 and 126: Filter Manifold Service (Fig. 62) F
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CAUTION The centering springs are u
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Removal (Fig. 67) 1. Park machine o
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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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Hydraulic System This page is inten
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Removal (Fig. 75) 1. Read the Gener
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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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Removal (Fig. 94) 1. Read the Gener
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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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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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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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