Why won't my Manitowoc National Crane 800D Construction Equipment lift the load?
If your Manitowoc Construction Equipment jack won't lift the load, it could be due to a couple of reasons. First, check if there's enough oil in the system. If not, add oil to the reservoir tank through the oil filler hole. Another possible cause is that the release valve isn't fully closed. Make sure to turn the handle clockwise tightly to close it.
How to improve lifting on Manitowoc Construction Equipment?
Poor lifting in your Manitowoc Construction Equipment can stem from a couple of issues. One possibility is dirty oil, which requires a hydraulic oil change. Another cause might be air trapped in the hydraulic system, so you should purge the air from the system.
What to do if Manitowoc Construction Equipment will lift load only part way?
If your Manitowoc Construction Equipment jack will lift the load only part way, it's likely due to a low oil level. Add oil to the reservoir tank through the oil filler hole to resolve this.
What to do if Manitowoc Construction Equipment jack will not lower?
If your Manitowoc Construction Equipment jack will not lower, the release valve is likely stuck due to dirt or foreign matter. To fix this, transfer the load, then replace the dirty oil and flush the oil reservoir with kerosene.
Why is there poor pumping action in my Manitowoc National Crane 800D Construction Equipment?
If your Manitowoc Construction Equipment exhibits poor pumping action, it's likely that the oil seal for the pump unit is worn out or defective. The suggested solution is to replace the jack.
What to do if Manitowoc National Crane 800D will lift load but will not hold?
If your Manitowoc Construction Equipment will lift a load but won't hold it, it could be due to a leaking valve (suction, delivery, or release valve) or worn-out/defective packings. The suggested solution is to replace the jack.
General| Brand | Manitowoc |
|---|---|
| Model | National Crane 800D |
| Category | Construction Equipment |
| Language | English |
Alerts personnel to hazardous operating practices and maintenance procedures using symbols and signal words.
Provides basic principles for safe operation and maintenance, emphasizing personal responsibility.
Symbol indicating potential death or injury; obey safety messages to avoid harm.
Identifies hazard degree with DANGER, WARNING, and CAUTION to indicate seriousness.
Procedures for reporting accidents and damage to equipment to the distributor or manufacturer.
Emphasizes understanding manuals, load charts, and safety videos before operation.
Defines a qualified person and outlines requirements for safe crane operation and familiarization.
Information on devices that provide information or control crane functions to facilitate operation.
Monitors crane conditions and prevents overload movements, aiding operator safety.
Prevents damage from contact between the load block and boom nose, critical for safety.
Limits crane operation within a defined working area, enhancing safety.
Ensures crane stability on firm surfaces with proper configuration and load limits.
Essential for determining maximum allowable loads based on crane configuration and radius.
Importance of inspecting the work site for safe operation, ground conditions, and stability.
Principles for operating in windy conditions and their effects on crane stability and lift safety.
Guidelines for determining permissible wind speeds for safe lifting operations.
Procedures and precautions for conducting safe lifting operations, including load handling.
Ensuring correct counterweight installation for crane stability and load capacity.
Explains conditions when an outrigger pad may lift off the ground during operation.
Precautions and coordination requirements for lifts involving more than one crane.
Special hazards and additional precautions for tilt-up panel lifting operations.
Approved applications and operational requirements for pile driving and extracting tasks.
Requirements for hoists, cable retainers, boom extensions, and hoist hooks.
Procedures for inspecting the crane, especially after specific operations like pile driving.
Critical safety information on operating near electrical power lines and avoiding electrocution.
Precautions for setting up and operating the crane near power lines and equipment.
Limitations and proper use of safety devices related to electrocution hazards.
Actions to take if the crane comes into contact with an energized power source.
Precautions for operating during electrical thunderstorms and near communication towers.
Procedures for grounding the crane to prevent static electricity buildup.
Requirements and safety for lifting personnel with a crane, adhering to standards.
Guidelines for proper disposal of waste materials and protection of the environment.
Importance of routine preventive maintenance and inspections for crane longevity.
Requirements for performing service and repairs by qualified personnel.
Recommendations for lubrication points, types, and frequency for optimal performance.
Inspection and maintenance requirements for tires and lug nuts.
Information on inspection, maintenance, and retirement criteria for hoist ropes.
Specific details and recommendations for synthetic hoist rope.
Guidelines for using, inspecting, and retiring wire rope to ensure safety.
Inspection of sheaves for wear and damage to prevent rope deterioration.
Safety precautions for servicing and maintaining crane batteries.
Safety precautions related to fueling and maintenance of the engine.
Procedures and checks for safely transporting the crane, including route planning.
Guidelines for safe crane operation while traveling on roads or sites.
Personal considerations, job preparation, and safe working practices for crane operators.
Safety advice for operators regarding clothing, jewelry, and personal safety gear.
Precautions for safely entering and exiting the crane, maintaining three-point contact.
Essential steps before operating the crane, including barricading and equipment checks.
Operator responsibilities and procedures during crane operations, including stopping for safety.
Critical procedures and precautions for performing safe lifts, including rigging and load checks.
Standardized hand signals for controlling crane operations between operator and signal person.
Safety procedures for erecting, stowing, and using boom extensions.
Instructions for parking and securing the crane when it is to be left unattended.
Step-by-step procedure for properly shutting down the crane.
Additional precautions and procedures required for cold weather operation.
How temperature affects hook block working load limits and lifting precautions.
How temperature changes affect hydraulic cylinder operation and boom movement.
Procedures to follow when the RCL system indicates an overload condition.
Describes controls located in the truck cab for crane operation.
Details engagement and operation of the power take-off system.
Instructions for setting the truck's park brake before operation.
Overview of control stations and functions for crane operation.
Explains the operation of various control levers for crane functions.
Senses excessive pressure and stops functions causing overload.
Monitors crane conditions and prevents overload movements, aiding operator safety.
Identifies major crane components and their locations.
Outlines procedures for safe and efficient crane operation.
Ensures crew familiarity with controls, procedures, and safety precautions.
Lists pre-operation checks for hydraulic fluid, tires, bolts, and systems.
Provides recommendations for operating cranes in cold temperatures.
Details actions to properly warm crane components before operation.
Refers to chassis manual for engine warm-up procedures.
Refers to chassis manual for transmission warm-up procedures.
Recommended warm-up procedures for the hoist at various temperatures.
Warm-up procedures for swing drive and turntable bearing.
Refers to chassis manual for axle warm-up procedures.
Details operating limits and warm-up procedures for the hydraulic oil system.
Checks electrical wiring and anti-two-block switches for proper function.
Guidance on selecting the best and safest work site location.
Steps to take before leaving the operator's cab.
Emphasizes leveling the crane within 1% of grade for stability.
Procedure for checking and adjusting the bubble level indicator.
Instructions for extending outriggers and setting up the crane for operation.
Pre-lift checks including controls, work area, and load.
Essential for determining safe lifting capacities and operations.
Details proper operation of the hoist system for lifting loads.
Explains how to use multiple parts of line for increased lifting capacity.
Provides essential safety rules for operating the hoist.
Step-by-step procedure for safely lifting and moving loads.
Steps for safely shutting down the crane and preparing it for transport.
Explains the operation of the hoist's burst of speed feature.
Aids operator in ensuring proper crane setup on outriggers and stabilizers.
Basic operation of the Outrigger Monitoring System.
Maintenance procedures for the outrigger cylinder length sensor.
Describes the system that prevents damage from two-blocking the hoist cable.
Explains how the anti-two-block system works to prevent cable damage.
Instructions for rigging the anti-two-block weight.
Senses over-capacity conditions and stops functions that increase overload.
Explains the function and components of the hydraulic capacity alert system.
Describes how the capacity alert system operates to prevent overloads.
Covers safety precautions and procedures for jib operation.
Provides specific safety advice for using the crane's jib.
Procedure for deploying and stowing the side folding-swing around jib.
Maintenance recommendations for the jib.
Service and maintenance procedures for the jib jack.
Allows operator to limit maximum swing speed for preference or application.
Standardized hand signals for communication between signal person and operator.
General guidelines for performing service and repairs on the crane.
Procedures for proper disposal of waste materials used in crane maintenance.
Importance of keeping the crane clean to preserve life and prevent damage.
Information on the hydraulic system's operation and contaminant control.
Procedure for labeling parts during disassembly for correct reassembly.
Refers to lubrication section for hydraulic oil specifications.
Steps for draining, flushing, and refilling the hydraulic system for cleaning.
Procedures for removing air from the hydraulic system to prevent noise and malfunction.
Safety measures to prevent damage to electronic components during welding.
Provides part numbers for O-ring face seal and O-ring boss fittings.
Guidelines for proper application of Loctite® adhesives and sealants.
Information on proper bolt length, torque values, and fastener identification.
Torque values for weld studs.
Formulas and guidelines for using torque wrench extensions.
Chart to help diagnose and correct operational malfunctions.
Troubleshooting steps for electrical issues with the anti-two block system.
Troubleshooting steps for hydraulic issues with the anti-two block system.
Details operation and maintenance of the internal wire system for four-section booms.
Operation of the anti-two-block internal wire system.
Maintenance procedures for the anti-two-block internal wire system.
Procedure for replacing the anti-two-block wire in the 1/2 stage boom.
Steps for disassembling the 1/2 stage boom section.
Procedure for replacing the anti-two-block wire in the 2/3/4 stage boom.
Instructions for replacing the proportioning cable for the 1/2 stage anti-two block wire.
Operation of the anti-two-block wire system for three-section booms.
Maintenance for the anti-two-block wire system for three-section booms.
Details operation and maintenance of the internal wire system for three-section booms.
Operation of the anti-two-block wire system for three-section booms.
Maintenance for the anti-two-block wire system for three-section booms.
Details operation and maintenance of the anti-two-block wire system with an external reel.
Operation of the anti-two-block wire system with an external reel.
Maintenance for the anti-two-block wire system with an external reel.
Procedures for disassembling and repairing hydraulic cylinders.
Disassembly and assembly of telescope cylinders.
Step-by-step instructions for disassembling telescope cylinders.
Step-by-step instructions for assembling telescope cylinders.
Explains the operation of the three-section boom.
Visual aids showing boom extended and retracted states.
Illustration of the boom in its extended position.
Illustration of the boom in its retracted position.
Maintenance procedures specific to three-section booms.
Lubrication procedure for internal cable sheaves in boom sections.
Process for tensioning cables in three-section booms.
Procedures for servicing three-section booms.
Steps for removing a three-section boom.
Procedures for disassembling a three-section boom.
Extra maintenance steps for a disassembled boom.
Instructions for assembling a three-section boom, including internal wires.
Replacing top/bottom pads on an assembled three-section boom.
Procedure for replacing top rear wear pads on a three-section boom.
Procedure for replacing front bottom wear pads on a three-section boom.
Explains the operation of the four-section boom.
Maintenance procedures specific to four-section booms.
Lubrication procedure for internal cable sheaves in four-section booms.
Process for tensioning cables in four-section booms.
Procedures for servicing four-section booms.
Steps for removing a four-section boom.
Procedures for disassembling a four-section boom.
Instructions for assembling a four-section boom, including internal wires.
Replacing top/bottom pads on an assembled four-section boom.
Procedure for replacing top rear wear pads on a four-section boom.
Procedure for replacing front bottom wear pads on a four-section boom.
General procedures for tensioning boom cables.
Setup procedure for tensioning boom cables.
Specific sequences for tensioning cables based on boom sections and cylinder type.
Cable positioning for a 4-section boom with a 2-stage cylinder.
Cable positioning for a 4-section boom with a 1-stage cylinder.
Cable positioning for a 3-section boom with a 1-stage cylinder.
Hardware and procedures for retaining boom cables.
Adjusts top/rear wear pads for lateral tolerance in boom sections.
Lubrication procedure for inner boom pad retention pockets.
Steps for installing and adjusting the crane's jib.
Service and maintenance procedures for the jib jack.
Procedure for adding oil to the jib jack.
Procedure for changing oil in the jib jack.
Lubrication schedule for pivoting sections.
Checking rams for rust and corrosion.
Common troubleshooting steps for jib jack issues.
Maintenance for the optional oil cooler heat exchanger.
Procedures for servicing the swing drive system, including lubrication.
Details lubrication intervals and maintenance for gearboxes.
Step-by-step guide to disassembling the swing drive.
Step-by-step guide to assembling the swing drive.
Explains the function and adjustment of the mechanical rotation stop.
Methods for adjusting the rotation stop system.
Procedures for servicing control valves, including seal replacement.
Detailed steps for valve disassembly and seal replacement.
Procedure for replacing spool seals in control valves.
Instructions for servicing unloader (dump) valves.
Procedures for adjusting control valve relief settings.
Specific adjustment for the mid-inlet relief valve.
Procedure to purge air from unloader dump valves.
Overview of the crane's open center hydraulic system.
Details the optional system for monitoring hydraulic capacity.
Procedure for checking and adjusting the hydraulic capacity alert system.
Step-by-step analysis for diagnosing and correcting service problems.
General maintenance and repair guidelines for the capacity alert system.
Provides detailed technical specifications for the crane's hydraulic pump and systems.
Identifies typical locations for serial number tags on major crane components.
Considers axle rating, wheelbase, and frame strength for selecting a proper truck.
Describes different mounting configurations and their advantages.
Details installation of the Series 8100D on a chassis using a sub-base.
Requires front stabilizer for full capacity 360° stability around the truck.
Allows Series 800D installation on a chassis with sub-base fitting boom length.
Requires front stabilizer for full capacity 360° around the truck.
Allows rear mount installation for 360° stability and close working area lifts.
Specifies PTO torque and horsepower needs for the crane's hydraulic system.
Information on mounting pumps directly to the PTO using adapter assemblies.
Ensures correct pump rotation configuration for truck drive train and PTO.
Valving system for auger units combining hoist and crane pump flows.
Guidance on selecting the appropriate PTO based on crane operating speeds.
Requirements for truck frame rigidity and strength to support the crane.
Tables to determine the section modulus of truck frames for strength calculations.
Specifies truck frame requirements for mounting a front stabilizer.
Tables for determining section modulus of channel and angle reinforcements.
Steps for preparing the truck chassis for crane mounting.
Safety precautions to prevent damage to electronic systems during welding.
Considerations for positioning the crane on the truck according to state laws.
Instructions for installing the PTO, pump, and reservoir.
Procedures for reinforcing or extending the truck frame for crane installation.
Steps for modifications to the truck frame, including channel fabrication and welding.
Procedures for inspecting and installing pin bearings.
Inspect pins for nicks, gouges, or deep wide scratches; repair or replace as needed.
Visually check bearing material for imperfections like cracks or gouges.
Inspect trunnion bore and spring spacer for proper bearing alignment.
Instructions for installing bearings into the boom pivot trunnion and lift cylinder.
Determines counterweight amount and location based on stability and truck configuration.
Illustrates methods for adding counterweight to achieve rear stability.
Steps to install and verify the function of the RCL system for crane safety.
Procedure for initial crane start-up, function checks, and stability testing.
Instructions for installing a boom rest for transport stability and protection.
Explains the design and operational principles of the planetary hoist system.
Diagram illustrating the hydraulic system for hoist raise and lower functions.
Recommendations for a regular preventive maintenance program for hoist longevity.
Owner's responsibility for inspection intervals and hoist usage categories.
Procedure for checking and adjusting oil levels in the gearbox and brake housing.
Recommended intervals for changing gearbox and brake section oil.
Procedures for checking, draining, and adding oil to the hoist brake.
Procedures for draining and filling the hoist gearbox with oil.
Lists recommended oil types and grades for planetary hoist and brake systems.
Step-by-step instructions for disassembling the hoist.
Step-by-step instructions for assembling the hoist after service.
Procedure for properly routing and installing the hoist cable onto the drum.
Instructions for inspecting and installing the wedge socket assembly on the wire rope.
Approved methods for treating wire rope dead-ends exiting a wedge socket.
Procedures for servicing the hoist motor assembly.
Detailed steps for disassembling and servicing the hoist brake assembly.
Procedures for removing, inspecting, and reassembling planetary gearsets.
Common solutions for hoist operational problems like not lifting or holding loads.
Possible causes and solutions for a hoist that fails to hold a load.
Possible causes and solutions for a hoist that cannot lift the load.
Possible causes and solutions for a hoist that cannot lower the load.
Troubleshooting steps for oil leaks from the motor shaft seal or brake pistons.
Provides torque values for various fasteners used in hoist assembly.
List of parts with sequence numbers, quantities, and descriptions for the hoist assembly.
Diagram showing the assembly of hoist components with numbered parts.
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