Jlg 26MRT ANSI Service Manual Bedienungsanleitung

SERVICE & MAINTENANCE Model 26MRT 3120791 December 1, 2000 AUSTRALIAN OFFICE JLG INDUSTRIES, INC. P.O. Box 5119 11 Bolwarra Road Port Macquari

SECTION 1 - SPECIFICATIONS1-4 – JLG Sizzor – 3120791Figure 1-1. Lubrication DiagramTable 1-6. Lubrication ChartINDEX NOCOMPONENT NUMBER/TYPE LUBE POI

SECTION 1 - SPECIFICATIONS3120791 – JLG Sizzor – 1-5Figure 1-2. Serial Number Locations

SECTION 1 - SPECIFICATIONS1-6 – JLG Sizzor – 3120791Figure 1-3. Torque Chart

SECTION 2 - PROCEDURES3120791 – JLG Sizzor – 2-1SECTION 2. PROCEDURES2.1 GENERALThis section provides information necessary to performmaintenance on

SECTION 2 - PROCEDURES2-2 – JLG Sizzor – 31207914. Lubricate new or used serviceable bearings beforeinstallation. When pressing a bearing into a retai

SECTION 2 - PROCEDURES3120791 – JLG Sizzor – 2-3NOTE: Start-up of hydraulic system with oil temperaturesbelow -15° F (-26° C). is not recommended. If

SECTION 2 - PROCEDURES2-4 – JLG Sizzor – 3120791valve. Integral actuator port relief valves, anti-cavitationcheck valves, and load check valves are st

SECTION 2 - PROCEDURES3120791 – JLG Sizzor – 2-5Cylinders w/Single Counterbalance Valves - Lift CylinderOPERATE ALL FUNCTIONS FROM GROUND CONTROL STAT

SECTION 2 - PROCEDURES2-6 – JLG Sizzor – 31207913. If applicable, remove the cartridge-type holdingvalve and fittings from the cylinder port block. Di

SECTION 2 - PROCEDURES3120791 – JLG Sizzor – 2-715. If applicable, remove the piston spacer from the rod.16. Remove the rod from the holding fixture.

SECTION 2 - PROCEDURES2-8 – JLG Sizzor – 31207912. Using a soft mallet, tap a new wiper seal into theapplicable cylinder head gland groove. Install a

SECTION 2 - PROCEDURES3120791 – JLG Sizzor – 2-910. Install the bolts into the bushing using Loctite #242.Refer to Table 2-1, Cylinder Component Torqu

SECTION 2 - PROCEDURES2-10 – JLG Sizzor – 31207912.11 STEER CYLINDER REPAIRRemovalBefore beginning this procedure, ensure that the parkingbrake is eng

SECTION 2 - PROCEDURES3120791 – JLG Sizzor – 2-11EXTREME CARE SHOULD BE TAKEN WHEN REMOVING THE CYL-INDER ROD, SPACER, AND PISTON. AVOID PULLING THE R

SECTION 2 - PROCEDURES2-12 – JLG Sizzor – 312079110. Carefully install one of the cylinder heads on oneend of the cylinder rod and push the head onto

SECTION 2 - PROCEDURES3120791 – JLG Sizzor – 2-13.3. Connect the black lead of the voltmeter to groundand the red lead to the yellow wire protruding f

SECTION 2 - PROCEDURES2-14 – JLG Sizzor – 3120791.Steer Relief Adjustment1. Install a pressure gauge at gauge port MP, locatedon the lower right side

SECTION 2 - PROCEDURES3120791 – JLG Sizzor – 2-15Axle Installation1. Move the drive axle to its proper position beneaththe machine frame, then properl

SECTION 2 - PROCEDURES2-16 – JLG Sizzor – 3120791Figure 2-16. Drive Axle Assembly

SECTION 2 - PROCEDURES3120791 – JLG Sizzor – 2-17Cleaning and Inspection1. Use a standard metal cleaning solvent to clean outthe bearing bore in the h

INTRODUCTION - MAINTENANCE SAFETY PRECAUTIONS3120791 – JLG Sizzor – aSECTION A. INTRODUCTION - MAINTENANCE SAFETY PRECAUTIONSA.A GENERALThis section

SECTION 2 - PROCEDURES2-18 – JLG Sizzor – 312079114. Assemble the bearing cup into the bearing bore ofthe axle housing. Ensure the cup backface is sea

SECTION 2 - PROCEDURES3120791 – JLG Sizzor – 2-19NOTE: On the spline end of the pinion, there are bearingpreload shims. These shims may stick to the

SECTION 2 - PROCEDURES2-20 – JLG Sizzor – 3120791that 0.003 inches (0.076 mm) more shims be added than ifthe pinion were etched ”0". By adding 0.

SECTION 2 - PROCEDURES3120791 – JLG Sizzor – 2-21NOTE: Figure 2-17 shows the arrow in the pinion pointing intwo directions. The direction of the arrow

SECTION 2 - PROCEDURES2-22 – JLG Sizzor – 3120791changes, shims should be changed in the range of 0.002inches (0.051 mm) to 0.004 inches (0.102 mm) un

SECTION 2 - PROCEDURES3120791 – JLG Sizzor – 2-23Check the ring gear and pinion tooth pattern as fol-lows:• Paint the ring gear teeth with a marking c

SECTION 2 - PROCEDURES2-24 – JLG Sizzor – 31207912. Tap the female end of the spline shaft assembly andspring plate with a soft mallet to separate the

SECTION 2 - PROCEDURES3120791 – JLG Sizzor – 2-25Figure 2-20. Brake Assembly

SECTION 2 - PROCEDURES2-26 – JLG Sizzor – 3120791IF HYDROSTATIC BENCH TESTING IS PERFORMED ON THEBRAKE ASSEMBLY, RELEASE PRESSURE SHOULD NOT EXCEED1,0

SECTION 2 - PROCEDURES3120791 – JLG Sizzor – 2-27Figure 2-21. ADDCO Adjustments (Gasoline/Dual Fuel Engine)

INTRODUCTION - MAINTENANCE SAFETY PRECAUTIONSb – JLG Sizzor – 3120791REVISON LOGOriginal Issue - June 1993Revised - May 19, 1999Revised - December 6,

SECTION 2 - PROCEDURES2-28 – JLG Sizzor – 3120791Figure 2-22. ADDCO Adjustments (Diesel Engine)

SECTION 2 - PROCEDURES3120791 – JLG Sizzor – 2-29The valve driver card potentiometer adjustments are asfollows:P1 - DRIVE FWD ACCEL (A RAMP UP)P2 - DR

SECTION 2 - PROCEDURES2-30 – JLG Sizzor – 312079113. Turn P8, drive reverse low, clockwise until thewheels just start to move. The ammeter should read

SECTION 2 - PROCEDURES3120791 – JLG Sizzor – 2-312.20 PREVENTIVE MAINTENANCE AND INSPECTION SCHEDULEThe preventive maintenance and inspection checks a

SECTION 2 - PROCEDURES2-32 – JLG Sizzor – 3120791Table 2-3. Preventive Maintenance and Safety InspectionAREA INTERVAL10Hours(Daily)50 Hours(Weekly)200

SECTION 3 - TROUBLESHOOTING3120791 – JLG Sizzor – 3-1SECTION 3. TROUBLESHOOTING3.1 GENERALThis section contains troubleshooting information to beused

SECTION 3 - TROUBLESHOOTING3-2 – JLG Sizzor – 3120791.Table 3-1. Elevation System TroubleshootingTROUBLE PROBABLE CAUSE REMEDYPlatform Elevation Syste

SECTION 3 - TROUBLESHOOTING3120791 – JLG Sizzor – 3-3Platform raises and lowers erratically Hydraulic system oil low. Replenish oil as necessary.Rest

SECTION 3 - TROUBLESHOOTING3-4 – JLG Sizzor – 3120791 Table 3-2. Chassis TroubleshootingTROUBLE PROBABLE CAUSE REMEDYDrive SystemNo response to drive

SECTION 3 - TROUBLESHOOTING3120791 – JLG Sizzor – 3-5High-Speed Drive function does not operateLoose or damaged wiring between drive controller and Hi

3120791 – JLG Sizzor – i TABLE OF CONTENTSTABLE OF CONTENTSSUBJECT - SECTION, PARAGRAPH PAGE NO.SECTION A - INTRODUCTION - MAINTENANCE

SECTION 3 - TROUBLESHOOTING3-6 – JLG Sizzor – 3120791 Machine hard to steer or steering is erratic (cont.)Lack of lubrication on steer components.

SECTION 3 - TROUBLESHOOTING3120791 – JLG Sizzor – 3-7Table 3-3. Hydraulic System TroubleshootingTROUBLE PROBABLE CAUSE REMEDYHydraulic System - Genera

SECTION 3 - TROUBLESHOOTING3-8 – JLG Sizzor – 3120791Table 3-4. Electrical System TroubleshootingTROUBLE PROBABLE CAUSE REMEDYHand ControllerValve wil

SECTION 3 - TROUBLESHOOTING3120791 – JLG Sizzor – 3-9 No response to a function control switch (cont.)No voltage present at applicable control valve

SECTION 3 - TROUBLESHOOTING3-10 – JLG Sizzor – 3120791Figure 3-1. Electrical Schematic - Yanmar (Sheet of 1 of 2)

SECTION 3 - TROUBLESHOOTING3120791 – JLG Sizzor – 3-11Figure 3-2. Electrical Schematic - Yanmar (Sheet of 2 of 2)1870102 C

SECTION 3 - TROUBLESHOOTING3-12 – JLG Sizzor – 3120791Figure 3-3. Electrical Schematic - Daihatsu (Sheet 1 of 2)

SECTION 3 - TROUBLESHOOTING3120791 – JLG Sizzor – 3-13Figure 3-4. Electrical Schematic - Daihatsu (Sheet 2 of 2)1870103 C

SECTION 3 - TROUBLESHOOTING3-14 – JLG Sizzor – 3120791Figure 3-5. Hydraulic Schematic (Sheet 1 of 2)

SECTION 3 - TROUBLESHOOTING3120791 – JLG Sizzor – 3-15Figure 3-6. Hydraulic Schematic (Sheet 2 of 2)1282590 L

ii – JLG Sizzor – 3120791TABLE OF CONTENTS LIST OF FIGURESFIGURE NO. TITLE PAGE NO.1-1. Lubrication Diagram . . . . . . . . .

SECTION 3 - TROUBLESHOOTING3-16 – JLG Sizzor – 3120791This page intentionally left blank.

JLG Worldwide LocationsCorporate OfficeJLG Industries, Inc.1 JLG DriveMcConnellsburg PA. 17233-9533USAPhone: (717) 485-5161Customer Support Toll Free:

SECTION 1 - SPECIFICATIONS3120791 – JLG Sizzor – 1-1SECTION 1. SPECIFICATIONS1.1 CAPACITIESHydraulic Oil Tank15.0 gallons (56.8 liters)Hydraulic Syst

SECTION 1 - SPECIFICATIONS1-2 – JLG Sizzor – 3120791LiftUp - 34-42 secondsDown - 31-39 secondsPlatform CapacityStandard - 1,000 lb. (455 kg).Manual Pl

SECTION 1 - SPECIFICATIONS3120791 – JLG Sizzor – 1-3Lubrication Specifications1.6 CYLINDER SPECIFICATIONSNOTE: All dimensions are given in inches (in)