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NC HT1.0 Original Instructions Manual

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MAINTENANCE
MAINTENANCE
MAINTENANCE
MAINTENANCE
INSTRUCTION
INSTRUCTION
INSTRUCTION
INSTRUCTION
REVISION B
HT1.0 Site Dumper
HT1.0 Site Dumper
HT1.0 Site Dumper
HT1.0 Site Dumper
MANUAL
MANUAL
MANUAL
MANUAL
NC ENGINEERING (HAMILTONSBAWN) LTD
2 Killyrudden Road, Hamiltonsbawn, Co Armagh, BT61 9SF
Tel: 028 38871970 Fax: 028 38870362
sales@nc-engineering.com www.nc-engineering.com
email:
ORGINAL INSTRUCTIONS

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Summary of Contents for NC HT1.0

  • Page 1 ORGINAL INSTRUCTIONS HT1.0 Site Dumper HT1.0 Site Dumper HT1.0 Site Dumper HT1.0 Site Dumper MAINTENANCE MAINTENANCE MAINTENANCE MAINTENANCE INSTRUCTION INSTRUCTION INSTRUCTION INSTRUCTION MANUAL MANUAL MANUAL MANUAL NC ENGINEERING (HAMILTONSBAWN) LTD 2 Killyrudden Road, Hamiltonsbawn, Co Armagh, BT61 9SF Tel: 028 38871970 Fax: 028 38870362 sales@nc-engineering.com www.nc-engineering.com...
  • Page 2 Dear Customer Even if you have operated this type of equipment before, it is very important that your new equipment operations and instructions are explained to you by a Dealer Representative following delivery of your equipment. This will explain the operating controls and enable you to gain maximum productivity from your new dumper.
  • Page 3 The procedures in this publication relate specifically to the NC Dumper All information, specifications and illustrations used in this manual are correct at the time of issue. NC reserves the right to make changes in this manual at any time without prior notice. Copyright © 2010 NC Engineering (Hamiltonsbawn) Ltd All rights reserved.

  • Page 4: Table Of Contents

    Contents Page No. Declaration of Conformity Noise Level Declaration Vibration Declaration Technical Specifications Maintenance Decals Descriptions Safety Decals Descriptions Introduction Technical Specification Service Record Service Schedules Torque Settings Fluids & Lubricants Safety Information Maintenance Battery Air Cleaner Coolant System Engine Oil Check / Change Hydraulic Oil Check Towing Procedure Brake System...
  • Page 5 Contents Page No. Fault Finding Dumper will not start or difficult to start (No exhaust smoke) Dumper will not start or difficult to start (Exhaust smoke) Engine will not crank or cranks slowly Engine starts then stops Engine poor running Engine poor running at idle Engine excessive noise Engine compression knocks...

  • Page 6: Declaration Of Conformity

    EC – DECLARATION OF CONFORMITY Machine description Site Dumper Make Type HT1.0 Manufactured by NC Engineering (Hamiltonsbawn) Ltd Address: 2 Killyrudden Road, Hamiltonsbawn Richhill, Co. Armagh. BT61 9SF This machinery has been designed and manufactured in accordance with the following European Standards: -...

  • Page 7: Noise Level Declaration

    Noise Level Declaration The noise levels are measured according to ISO6395:1998 The noise level of this machine is 99dB ( A ) 82dB ( A ) :- A - Weighted sound power level. :- A - Weighted sound pressure level.

  • Page 8: Vibration Declaration

    Vibration Declaration. The absence of a harmonised test code together with variable conditions under which this equipment may be used allows only representative figures to be quotes. Whole Body Vibration Level : a (m/s²) = 0.1 Hand / Arm : a ( m/s²...

  • Page 9: Technical Specifications

    Technical Specifications...

  • Page 10: Maintenance Decals Descriptions

    The decal must be clean and readable at all times. If the decal needs to be replaced it can be obtained from the NC Spares department. Ref No.
  • Page 11 Maintenance Decal Descriptions Ref No. Symbols Description. Grease point - Hi lift rams. Grease point - Centre point articulation casting. Grease point - Steering ram. Fuel filter. Hydraulic oil. Engine checks. Engine coolant.

  • Page 12: Safety Decals Descriptions

    It is important that before using the machine theses decals are read and un- derstood. The decals must be clean and readable at all times, if they need to be replaced they can be obtained from NC spares department. Part No.
  • Page 13 Safety Decals and Descriptions Part No. Symbol. Descriptions. DEC~1920-033 Sound levels. DEC~1920-034 Skip controls. DEC~1920-035 Do not operate controls without reading manual. DEC~1920-036 Safe gradients / Lower skip before moving / Visibility / Transport / No passengers / Towing procedures / Read manual. DEC~1920-037 Maintenance decal.

  • Page 14: Introduction

    Introduction The following maintenance sections are provided to ensure safe working practices. The procedures in this booklet should be followed. No attempt should be made to shortcut any of the steps. You or others could be killed or seriously injured if the machine is not correctly prepared and maintained.

  • Page 15: Technical Specification

    Technical Specifications. Engine Body Item Factory Specification Allowable Limit Valve Clearance (Cold) 0.145 to 0.185mm 0.00571 to 0.00728in. Compression Pressure D1105-E2B 539 to 596 psi 327 psi Difference among Cylinders 10% or less Top Clearance 0.55 to 0.70mm 0.0217 to 0.0276 in. Cylinder Head Surface Flatness 0.05mm...
  • Page 16 Technical Specifications. Engine Body (Continued) Item Factory Specification Allowable Limit Rocker Arm Shaft to Rocker Arm Clearance 0.016 to 0.045mm 0.10mm 0.00063 to 0.00177in. 0.0039in. Rocker Arm Shaft O.D. 11.973 to 11.984mm 0.4714 to 0.4718in. Rocker Arm I.D. 12.000 to 12.018mm 0.4724 to 0.4731in.
  • Page 17 Technical Specifications. Engine Body (Continued) Item Factory Specification Allowable Limit Idle Gear Shaft to Gear Bushing Clearance Idle Gear 1 0.020 to 0.054mm 0.10mm 0.0008 to 0.0021in. 0.0039in. Idle Gear Bushing 26.000 to 26.021mm 1.0236 to 1.0244in. Idle Gear Shaft 1 25.967 to 25.980mm 1.0223 to 1.0228in.
  • Page 18 Technical Specifications. Engine Body (Continued) Item Factory Specifications Allowable Limit Piston Ring Gap Top Ring 0.30 to 0.45mm 1.25mm [D1005-E2B] 0.0118 to 0.0177in. 0.0492in. Second Ring 0.30 to 0.45mm 1.25mm 0.0118 to 0.0177in. 0.0492in. Oil Ring 0.25 to 0.40mm 1.25mm 0.0098 to 0.0157in.
  • Page 19 Technical Specifications. Engine Body (Continued) Item Factory Specification Allowable Limit Crankshaft to Crankshaft Bearing 2 Oil Clearance 0.034 to 0.095mm 0.20mm 0.0013 to 0.0037in. 0.0079in. Crankshaft Journal O.D. 47.934 to 47.950mm 1.8872 to 1.8878in. Crankshaft Bearing 2 I.D. 47.984 to 48.029mm 1.8891 to 1.8909in.
  • Page 20 Technical Specifications. Lubricating System Item Factory Specifications Allowable Limit Engine Oil Pressure At Idle Speed More than 49kPa 0.5kgf/cm² 7psi At Rated Speed 196 to 441kPa 147kPa 2.0 to 4.5kgf/cm² 1.5kgf/cm² 28 to 64psi 21psi Inner Rotor to Outer Rotor Clearance 0.06 to 0.18mm 0.0024 to 0.0071in.
  • Page 21 Technical Specifications. Fuel System Item Factory Specifications Allowable Limit Injection Pump Injection Timing 0.30 to 0.33rad (3000min (rpm)) (17 to 19°) Before T.D.C. Injection Timing 0.35 to 0.31rad (3600min (rpm)) (15.5 to 17.5°) Before T.D.C. Injection Pump (BG Type) Injection Timing 0.27 to 0.31rad (60 Hz / 1800 min (15.5 to 17.5°)
  • Page 22 Technical Specifications. Fuel System Item Factory Specifications Allowable Limit Glow Plug Resistance Approx 0.9 Starter (Planetary Gear Reduction Type) Commutator O.D. 30.0mm 29.0mm 1.181in. 1.142in. Difference O.D. Less than 0.02mm 0.05mm 0.0008in. 0.0020in. Mica Undercut 0.50 to 0.80mm 0.20mm 0.0197 to 0.0315in. 0.0079in.

  • Page 23: Service Record

    Service Record Sheet First 50 Hr. First 5000 Hr. Date……………………. Date……………………. Hour Reading………….. Hour Reading………….. First 100 Hr. First 5500 Hr. Date……………………. Date……………………. Hour Reading………….. Hour Reading………….. First 500 Hr. First 6000 Hr. Date……………………. Date……………………. Hour Reading………….. Hour Reading………….. First 1000 Hr. First 6500 Hr.

  • Page 24: Service Schedules

    Service Schedules CALENDAR EQUILIVANTS 10Hours = Daily 50 Hours = Weekly 100 Hours = Fortnightly 500 Hours = Six Months 1000 Hours = Yearly 2000 Hours = 2 Years Service checks should be carried out at which ever interval occurs first. Do not use a machine which is due for a service.
  • Page 25 Service Schedules Operation 100 1000 WHEEL MOTORS Service Points & Fluid Levels Hubs Check for Leaks ● ● ● Tightness of Axle Mounting bolts (Torque to 244Nm /180lbf ft) ● ● Tightness of Motor Mounting bolts (Torque to 135Nm /100lbf ft) ●...
  • Page 26 Service Schedules Operation 1000 DUMPER CHASSIS Grease Points Skip Pivot Pins (1 Pin, 2 No Points) ● Hi Lift Arm Pins (4 No Points) ● Parallel Link Arm Pins (2 No Points) ● Tipping Ram Pins (2 No Pins) ● Hi Lift Rams (4 No Points) ●...

  • Page 27: Torque Settings

    Torque Settings Use these torque settings only where no torque setting has been specified in the text. Values are for dry threads and may be within 3% of the figures stated. For lubricated threads the values should be reduced by one third. UNF Grade “S”...
  • Page 28 Kubota Torque Settings TIGHTENING TORQUES FOR GENERAL USE SCREWS, BOLTS AND NUTS. Screw and bolt material grades are shown by numbers punched on the screw and bolt heads. Prior to tightening, be sure to check out the numbers as shown below. Punched number Screw and bolt material grade None or 4...
  • Page 29 Engine Torque Settings TIGHTENING TORQUES FOR SPECIAL USE SCREWS, BOLTS AND NUTS. Note For “*” marked screws, bolts and nuts on the table, apply engine oil to their threads and seats before • tightening The letter “M” in size x pitch means that the screw, bolt or nut dimension stands for metric. The size is •...

  • Page 30: Fluids & Lubricants

    (e.g. warming up without load) NC recommend grade of API CI4 (however a minimum of API CF grade can be used). NC do not recommend the use of high sulphur diesel fuels, if these are used an engine oil with a TBN (Total Base Number) of 10 or greater must be used.
  • Page 31 Specifications of the water quality are made by the local water board. The water must be conditioned if it deviates from the above specification. Contact NC for further assistance. The strength of the anti-freeze solution should be checked at least once a year, preferably at the beginning of a cold period.
  • Page 32 No warranty liability whatsoever will be accepted for failure of injection equipment where the failure is attributed to the quality and grade of fuel used. High sulphur fuels are not recommended. Only the following types of fuel are considered acceptable by NC EN590 Diesel fuel types (Auto/C0/C1/C2/C3/C4) •...
  • Page 33 Fluids & Lubricants LOW FUEL Be careful not to let the dumper run out of fuel. A low fuel warning light is on the instrument display will illuminate when the fuel level drops to the minimum recommended level. Low fuel light Fuel gauge If the dumper runs out of fuel it will be necessary to bleed the fuel system before the next engine start.

  • Page 34: Hydraulic Oil

    HYDRAULIC OIL HVZ 46 High Viscosity. (Blue Colour) DIN51524-3 Viscosity index 150 (NC use a UV dye in the hydraulic oil for testing for leaks this colours the oil a green/brown) DONOT USE ZINC FREE HYDRAULIC OILS GENERAL GREASE POINTS...

  • Page 35: Safety Information

    Keep suitable fire extinguishers near by. • Never smoke or leave the engine running when refuelling. • Always use genuine spares from NC Engineering. • Always check and test the machine thoroughly before putting it back to work. Observing these points will help to ensure the repair of the dumper is as safe as...

  • Page 36: Maintenance

    Maintenance BEFORE YOU START • Clean the machine before starting any maintenance. • Allow the machine to cool. • Ensure strict cleanliness is observed at all times. • Do not smoke near any fluids. • Beware of scalding from hot oils, check oil temperature before draining. When checking fluid levels on dumper, ensure the machine is switched off, positioned •...

  • Page 37: Battery

    Maintenance BATTERY LOCATION The battery is located in the left-hand side under the engine cover (B). It is accessed by unlocking latch (A) on the panel and then pulling lifting it up upwards. Remove the black battery protector (C) to gain access to the battery BATTERY Always wear safety glasses when working on the...
  • Page 38 Maintenance BATTERY ISOLATOR The battery isolator must always be used when carrying out service or maintenance work. It would be dangerous if the engine was to be started or the electrical system activated. When the battery isolator lever is in the ON (A) position the machine electrical circuit is fully activated.

  • Page 39: Air Cleaner

    Maintenance AIR CLEANER SERVICING The air cleaner needs serviced when the yellow level (A) comes into the red (B) on the window on the visual indicator reads and 50 mbar (C). This should be one of the daily machine checks. Maximum protection for the engine against dust is possible only if the air cleaner is serviced correctly.

  • Page 40: Coolant System

    Maintenance CHECKING COOLANT LEVEL Always check the coolant level when engine is cold This is a pressurised cooling system To prevent scalding NEVER remove the filler cap when the coolant is hot Hot coolant will burn you. Always check the engine is cool before checking the coolant level or draining the system.

  • Page 41: Engine Oil Check / Change

    If using oil of a different brand from the previous one be sure to drain out all of the • previous oil before adding new oil NC dumpers come pre filled with FUCHS Titan HPE 15W40 (which is an API CI-4 type • oil)
  • Page 42 • NOTE: use only genuine filters from NC. Using non genuine parts may result in loss of engine oil pressure and subsequent engine damage. Through the filler point, fill the engine with the recommended oil to the MAX mark on •...

  • Page 43: Hydraulic Oil Check

    & wheel motors it is important that the appropriate grade of lubricants are used and the correct oil level maintained. This level should be checked daily. NC recommend HVZ 46 High Viscosity. (Blue Colour) Hydraulic oil to DIN51524-3. DO NOT use zinc free hydraulic oil.

  • Page 44: Towing Procedure

    Maintenance TOWING PROCEDURE The dumper may only be towed using suitable towing equipment such as a towing bar or cable. These must be fixed to either the towing hitch (optional) or the tying down eyes at the front or rear axle. The dumper may only be towed when the following steps have been carried out.

  • Page 45: Brake System

    Maintenance BRAKE SYSTEM The main brake system on this dumper is provided by hydrostatic retardation by releasing the accelerator pedal. The parking brake is automatically applied when accelerator pedal is released, this will act as a secondary emergency brake. THE BRAKES ARE ALWAYS ON UNLESS THE ACCELERATOR PEDAL IS PRESSED DOWN WHEN THE DUMPER IS STARTED.

  • Page 46: Hydraulic System

    Maintenance HYDRAULIC SYSTEM The hydraulic system provides power to the driven wheels, steering, hi-tip and skip tip functions. The hydraulic tank is made from steel and forms part of the structure of the dumper. The hydraulics system comprises of a axial piston pump providing the power for driving the wheels of the dumper and a small gear pump mounted to the end to power the main steering, tipping and hi-lift functions of the dumper.
  • Page 48 Maintenance HYDRAULICS During any hydraulic maintenance extreme care should be taken to ensure cleanliness of the hydraulic circuit. By observing strict hydraulic cleanliness the machine will benefit from fewer hydraulic failures through contamination. ALWAYS Thoroughly clean the machine before any maintenance. •...
  • Page 49 Maintenance ADDING HYDRAULIC OIL Remove tank filler cap (A) and add oil. Add clean, filtered hydraulic oil. The oil level should always be above the suction strainer in the tank, ideally just below the top (B) of the visual indicator. Do not over fill the hydraulic tank as it needs room to vent air.
  • Page 50 Stop the engine and wait approximately one minute, • recheck the oil level. REPLACING FILTER ELEMENTS Always use replacement filters supplied by NC other filters may be of lesser quality and lead to increased wear in the hydraulic components resulting in oil leaks.

  • Page 51: Storage

    Maintenance STORAGE If the dumper is to be stored for a long period of time the following procedures should be applied. Thoroughly wash down the exterior of the machine and remove any build-up of material. • Grease all greasing points. •...

  • Page 52: Electrics

    Maintenance ELECTRICS Description Specification Battery 12V Type: H075 550CCA, 59Ampere-Hour Capacity Alternator 40A Belt driven The alternator is very sensitive to temperature. High temperatures will affect the performance of the alternator and may eventually cause damage to it. Never remove the exhaust lagging as this is a temperature resistant material.

  • Page 54: Fault Finding

    Fault Finding INTRODUCTION The dumper must be correctly parked and prepared. Maintenance personnel must be suitably qualified and trained. Failure to observe these this notice could result in serious injury of yourself or others The fault finding procedures are given in the form of flow charts each one dedicated to a particular fault category.

  • Page 55: Dumper Will Not Start Or Difficult To Start (No Exhaust Smoke)

    Fault Finding CHART A1—Dumper will not start or difficult to start (no exhaust smoke) Cause Remedy Electrical isolator not turned on. Turn isolator on. Not in Neutral. Check the FNR lever is in the NEUTRAL position. No fuel in tank. Check the level in the fuel tank and replenish as required.

  • Page 56: Dumper Will Not Start Or Difficult To Start (Exhaust Smoke)

    Fault Finding CHART A2—Dumper will not start or difficult to start (exhaust smoke) Cause Remedy Cold starting aid not working (if fitted). Check for the correct operation of the glow plugs. Intake air insufficient. Visually check the air intake and exhaust intake for blockage or obstruction, remove as required.

  • Page 57: Engine Will Not Crank Or Cranks Slowly

    Fault Finding CHART A3—Engine will not crank or cranks slowly Cause Remedy Starting electrical connections loose or Clean and tighten connections. corroded. Battery charge low. Check battery voltage, charge the battery or replace as required. Make sure that the alternator is functioning correctly and charging the battery.

  • Page 58: Engine Starts Then Stops

    Fault Finding CHART A4—Engine starts then stops Cause Remedy No fuel supply in tank. Check the level in the fuel tank and replenish as required. Engine starting under load. Check for added loading form malfunctioning accessories or driven units, brakes dragging and other changes in the vehicle loading.

  • Page 59: Engine Poor Running

    Fault Finding CHART A5—Engine poor running Cause Remedy Condition occurs only at idle. Refer to Chart A6 for possible poor running at idle faults. Fuel injection lines leaking Inspect and correct as required leaks in the high pressure lines, fittings injector sealing washers, or delivery valves. WARNING: Fine jets of fluid can penetrate the skip.

  • Page 60: Engine Poor Running At Idle

    Fault Finding CHART A6—Engine poor running at idle Cause Remedy Idle speed too low for accessories. Adjust the idle speed. Refer to the machines service manual for correct adjustment procedures and idling speed. Engine mounts over-tightened, damaged or Verify the condition of the mounts, and replace/adjust as loose.

  • Page 61: Engine Excessive Noise

    Fault Finding CHART A7—Engine excessive noise Cause Remedy Drive belt squeal, insufficient tension or Check the tensioner and inspect the drive belt for deterioration. abnormally high loading. Make sure the water pump, tensioner pulley, fan and alternator turn freely. Check for paint/oil or other materials on the pulleys. Check the tension of the accessory drive belts.

  • Page 62: Engine Compression Knocks

    Fault Finding CHART A8—Engine compression knocks Cause Remedy Fuel is aerated. Check the fuel system for loose connections and possible air ingress points. Rectify and bleed the fuel system. Fuel is contaminated or incorrect grade of Refer to Fluids & Lubricants section for recommended diesel diesel used.

  • Page 63: Engine Reduced Power Output

    Fault Finding CHART A9—Engine reduced power output Cause Remedy No fuel supply in the tank. Check the level in the fuel tank and replenish as required. Dirty air cleaner Replace air filter elements Oil level incorrect. Check oil level. Engine overloaded. Check for added loading from malfunctioning accessories or driven units, brakes dragging and other changes in vehicle loading.
  • Page 64 Fault Finding CHART A9—Engine reduced power output (continued) Cause Remedy Exhaust leak at the manifold. Check/correct leaks in the manifold gasket. Look for a cracked manifold. Extra injector sealing washer installed under Remove extra injector sealing washer. injector. Inlet & exhaust valve clearances set Set the valve clearances to the recommended clearances.

  • Page 65: Engine Will Not Reach Maximum Rpm

    Fault Finding CHART A10—Engine will not reach maximum rpm Cause Remedy Tachometer faulty (if fitted). Verify the engine speed with a hand held tachometer. Measure on the fan drive pulley and this will be the engine rpm. Engine overloaded. Verify high idle speed without load. Investigate operation to ensure correct gear is being used.

  • Page 66: Engine Rpm Surges

    Fault Finding CHART A11—Engine rpm surges Cause Remedy Fuel level low. Check/fill fuel tank. If the condition occurs at idle, the idle speed Check the engine idle rpm setting. is set too low for the accessories. Throttle adjustment incorrectly set or Check the engine maximum rpm is as specified in the Technical binding.

  • Page 67: Engine Excessive Vibration

    Fault Finding CHART A12—Engine excessive vibration Cause Remedy Engine not running smoothly/missing. Refer to Chart A5. Oil level over full. Check oil level. If the condition occurs at idle, the idle speed Check the engine idle rpm setting. is set too low for the accessories. Fan damaged or accessories faulty.

  • Page 68: Engine Exhaust Smoke Excessive (Black Smoke)

    Fault Finding CHART A13—Engine exhaust smoke excessive (Black smoke) Cause Remedy Air intake or exhaust system is blocked. Visually check the air intake and exhaust intake for blockage or obstruction-remove as required. Check the air filter elements for signs of blocking-replace as required. Exhaust leak at the manifold .

  • Page 69: Engine Exhaust Smoke Excessive (White / Blue Smoke)

    Fault Finding CHART A14—Engine exhaust smoke excessive (White/Blue smoke) Cause Remedy Fuel is contaminated or incorrect grade of Refer to Fluids & Lubricants section for recommended diesel diesel used. fuels. If the fuel is suspect, verify by operating the engine with clean fuel from a temporary tank.

  • Page 70: Engine Will Not Shut Off

    Fault Finding CHART A15—Engine will not shut off Cause Remedy Electrical fuel solenoid valve not functioning Check for correct operation of the fuel solenoid valve. properly. Worn or malfunction fuel injection pump Check for operation of the FIP. (FIP). Injection pump not delivering fuel. The FIP must be taken to a local FIE specialist to have the fuel delivery timing checked.

  • Page 71: Fuel Consumption Excessive

    Fault Finding CHART B1—Fuel consumption excessive Cause Remedy Additional load on engine. Check/repair accessories and vehicle components. Operator technique. Review operation for acceleration, deceleration and idling. Fuel Leaks. Check for external leaks and engine lubricating oil dilution. For fuel dilution check for internal leaks at the fuel transfer pump and injection pump.

  • Page 72: Fuel / Oil Leaking From Exhaust Manifold

    Fault Finding CHART B2—Fuel/Oil leaking from exhaust manifold Cause Remedy Operating for extended periods under light or Review operation for acceleration, deceleration and idling. no load. Intake air or exhaust leaks. Refer to Charts A13 & A14. Exhaust leak at the manifold. Check/correct leaks in the manifold gaskets.

  • Page 73: Lubricating Oil Consumption Excessive

    Fault Finding CHART C1—Lubricating Oil consumption excessive Cause Remedy Oil leaks. Inspect the engine for visible signs of leaks. Pay particular attention to the seals, gaskets, oil cooler and external connections. Oil level over full. Check oil level. Incorrect lubricating oil. (specification of Make sure the correct lubricating oil is being used, Refer to Fluids viscosity).

  • Page 74: Lubricating Oil Contaminated

    Fault Finding CHART C2—Lubricating Oil contaminated Cause Remedy Coolant in the lubricating oil, internal engine Refer to Chart D1. component leaks. Lubricating oil sludge excessive. Change oil & filter. Review/reduce the lubricating oil change intervals. If operating in arduous conditions change oil more frequently. Make sure the correct lubricating oil is being used, Refer to Fluids &...

  • Page 75: Lubricating Oil Pressure Low

    Fault Finding CHART C3—Lubricating Oil pressure low Cause Remedy Incorrect lubricating oil. (specification of Make sure the correct lubricating oil is being used, Refer to Fluids viscosity). & Lubricants section. Look for reduced viscosity from dilution with fuel. Fuel dilution in lubricating oil can originate from fuel injection pump driveshaft seal or fuel transfer pump.

  • Page 76: Lubricating Oil High Pressure

    Fault Finding CHART C4—Lubricating Oil pressure high Cause Remedy Incorrect lubricating oil. (specification of Make sure the correct lubricating oil is being used, Refer to Fluids viscosity). & Lubricants section. Look for reduced viscosity from dilution with fuel. Fuel dilution in lubricating oil can originate from fuel injection pump driveshaft seal or fuel transfer pump.

  • Page 77: Coolant Loss

    Fault Finding CHART D1—Coolant loss Cause Remedy Incorrect coolant level. Check the level. Coolant leaking from engine radiator. Visually inspect the radiator hoses and connections to locate the leak. If oil is present in the coolant, check for an engine oil cooler leak. External engine coolant leak.

  • Page 78: Coolant Over Temperature

    Fault Finding CHART D2—Coolant over temperature Cause Remedy Incorrect coolant level. Check the level. Ensure low level is not a result of a coolant leak. Refer to Chart D1. Radiator matrix blocked with dirt or chaff. Clean radiator matrix. Air flow to the radiator restricted Clear the louvers on the back panel Check/repair the fan shroud, anti recirculation sealing.

  • Page 79: Coolant Under Temperature

    Fault Finding CHART D3—Coolant under temperature Cause Remedy Air flow across radiator excessive. Check/repair the mesh grill on the bonnet. Check/repair the fan shroud, anti recirculation sealing. Check fan blades replace if necessary. Temperature gauge sensor faulty. Verify that the gauge and temperature sensor are correct. Thermostat faulty, open (not sealing) Check/replace thermostat.

  • Page 80: Poor Hydrostatic Drive Performance

    Check move off rpm & adjust if necessary Test pressure on G port on pump Test pressure on ports M1 & M2 on pump Contact NC regarding refurbishment or replacement Dumper will not move drive Check FNR lever is engaged Check Fuses &...

  • Page 81: Noisy Wheel Motor

    Fault Finding CHART E2—Noisy wheel motor...

  • Page 82: Wheel Motor Does Not Revolve

    Fault Finding CHART E3—Wheel motor does not revolve...

  • Page 83: Wheel Motor Does Not Revolve At Its Normal Speed Under Load

    Fault Finding CHART E4—Wheel motor does not revolve at its normal speed under load...

  • Page 84: Wheel Motor Revolves Irregularly

    Fault Finding CHART E5—Wheel motor revolves irregularly CHART E6—Wheel motor leaks...

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