JLG 1230ES Vertical Mast Service Manual
202 pages · Publication 31215828
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- Models
- 1230ES
- Manual type
- Service Manual
- Pages
- 202
- Publication
- 31215828
- Condition
- Brand new

What's inside
From the manual's own table of contents: 234 sections, 305 entries. See sample pages (PDF, 631 KB)
Maintenance1 topic
- Operating Specifications
Critical Stability Weights1 topic
- Lubrication
Oil Check Procedure5 topics
- Cylinder Specifications
- Torque Requirements
- Serial Number Locations
- Threadlocking Compound
- Torque Charts
Metric Fastener Torque Chart (Continued)1 topic
- Machine Preparation, Inspection, And Maintenance
Preventative Maintenance2 topics
- Preventive Maintenance And Inspection Schedule
- Servicing And Maintenance Guidelines
Show all 234 sections
Hydraulic Lines and Electrical Wiring1 topic
- TABLE OF CONTENTS Hydraulic System
Batteries1 topic
- Lubrication Information
Changing Hydraulic Oil2 topics
- Overview
- Modes Of Operation
Platform mode2 topics
- Can Communications
- Controls & Sensors
Tilt1 topic
- Traction
Interlocks4 topics
- Pump/Lift/Mast
- Steer
- Base Assembly Components
- Base Frame Covers
Battery Tray/Side Door - Installation1 topic
- Wheels And Tires - Drive And Rear
Wheel Installation3 topics
- Rear Wheel Hub - Installation
- Steering Linkage Assembly - Installation
- Steer Cylinder - Servicing
Steer Cylinder - Assembly2 topics
- Drive Motor/spindle Assembly - Installation
- Wheel Drive Assembly - Servicing
Wheel Drive Motor Assembly - Removal From Machine1 topic
- TABLE OF CONTENTS Drive Motor Disassembly
Motor Assembly1 topic
- Hydraulic Pump/motor/valve Assembly - Service Procedure
Motor Brush Installation3 topics
- Pot Hole Protection System
- Control Components Overview
- Control Components - Service
AC Power - Breaker Box Installation (CE Specification Machines ONLY)1 topic
- Traction System
ZAPI Power Module Electrical Evaluation1 topic
- Ground Control Module - Service Procedure
Printed Circuit Board (PCB) Replacement1 topic
- Platform Control Station - Service Information
Lower Control Box - Component Replacement1 topic
- Battery/Battery Charger
Battery Installation1 topic
- Battery Charger - Installation
Battery Charger Troubleshooting7 topics
- Battery Charger/Inverter (Option) - Installation
- Mast Components Overview
- Platform Tool Tray - Installation
- Mast Cover Plate - Installation
- Platform AC Receptacle Box - Installation
- Mast Assembly - Components
- Platform Assembly
Platform Installation1 topic
- Mast Assembly
Mast Installation Completion1 topic
- Multi-stage Hydraulic Cylinder - Servicing
Hydraulic Cylinder Assembly Testing1 topic
- Electronic Control System
Diagnostic Trouble Codes (DTC)3 topics
- Machine Configuration Programming Information
- Machine Personality - Adjustment Settings
- Tilt Sensor Calibration
Calibration Failures2 topics
- Tilt Sensor Electrical Evaluation
- Elevation Angle Sensor Electrical Evaluation
Tilt vs. Allowed Height Evaluation5 topics
- Elevation Sensor Calibration
- Introduction
- X-Connector References
- DTC Index
- DTC Check Tables
2-5 Function Prevented1 topic
- TABLE OF CONTENTS 3-1 Line Contactor Open Circuit
9-9 Hardware2 topics
- General
- Multimeter Basics
Procedure1 topic
- Electrical Switch Testing
Switch Wiring - Low Side, High Side1 topic
- Applying Silicone Dielectric Compound To Amp Connectors
Service - Voltage Reading1 topic
- Working With Deutsch Connectors
HD30/HDP20 Series Disassembly8 topics
- Connector Loading Diagrams
- X-Connector Id Index
- Machine Location Of Component X-connectors
- Electrical Layout And Schematics
- Electrical Schematics
- Pin Input/output Types
- AC Power Receptacles And Wiring (Platform) - CE Spec Machines Only
- Hydraulic Schematic
Inside this manual
Real pages from this service manual (202 pages). Open the sample pages (PDF, 628 KB)
- Specifications, page 17: SECTION 1 - MACHINE SPECIFICATIONS
- Repair procedure, page 119: SECTION 6 - MAST COMPONENTS
- Diagram, page 182: SECTION 9 - GENERAL ELECTRICAL INFORMATION & SCHEMATICS
- Color page, page 91: SECTION 5 - CONTROL COMPONENTS
- Color page, page 40: SECTION 3 - THEORY OF OPERATION - 1230ES
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 1230ES are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
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This is a service manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 202 pages
Quantity one is the manual described above.
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60-day returns
Free if the mistake is ours. A manual ordered in error must come back unopened in its shrink-wrap; you pay return shipping and a 20% restocking fee applies. Return policy
Other editions and similar models
Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).