Hitachi RTX 900 Troubleshooting, Problem Cause Solution, Relieve Pressure, page 6. Remove

Page 25

Troubleshooting

Troubleshooting

Problem

Cause

Solution

 

 

 

 

 

 

Sprayer won’t run

Power switch not on

Turn switch on.

 

 

 

 

No power at wall outlet

Check outlet by plugging in another

 

 

appliance. If appliance does not

 

 

work, try another outlet.

 

 

 

 

Wrong size generator

Use a 3500 watt or larger generator.

 

 

Refer to Generator Requirements,

 

 

page 6.

 

 

 

 

Breaker tripped

Reset breaker.

 

 

 

Pump won’t pump material

Air lock

Open air valve on gun.

 

 

 

 

Selector switch in wrong position

Move selector switch to correct posi-

 

 

tion for application.

 

 

 

 

Mix too thick

Add water to thin material. Use Mate-

 

 

rial Thickness Gauge.

 

 

 

 

Loose fittings

Check and retighten all fittings.

 

 

 

 

Plugged gun

Relieve Pressure, page 6. Remove

 

 

gun from hose. Clean gun.

 

 

 

 

Pump hose worn out

Replace hose. Recommended hose

 

 

replacement - once every year.

 

 

 

 

Pump cold

Move pump to warm room and allow

 

 

it to warm up or run hot water through

 

 

sprayer.

 

 

 

Material runs out of bottom of sprayer

Pump hose worn out

Replace hose.

 

 

 

 

Loose fittings

Check and retighten all fittings.

 

 

 

No air from compressor

Gun air valve closed

Open gun air valve.

 

 

 

 

Low voltage

Check extension cord length and

 

 

gauge. Replace if different than rec-

 

 

ommended. Refer to Grounding and

 

 

Electrical Requirements, page 6.

 

 

 

 

Gun needle plugged

Clean needle and retry.

 

 

 

 

Worn compressor

Replace compressor. Contact a qual-

 

 

ified Graco Service Center.

 

 

 

 

Lines not connected

Check all quick disconnect connec-

 

 

tions to gun and hoses.

 

 

 

 

Damaged hose

Replace hose.

 

 

 

311772G

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Contents Related Manuals Models 254974311777 311768 Model 254975 ShownEquipment Misuse Hazard Fire and Explosion HazardElectric Shock Hazard Cleaning Solvent Hazard with Plastic Parts Burn HazardPressurized Equipment Hazard Personal Protective EquipmentTi9016a Component Component IdentificationGrounding and Electrical Requirements Pressure Relief ProcedureAuxiliary Air Compressor Generator RequirementsShroud Removal DisassemblyRelieve Pressure, Reassembly Disassemble RotoFlex II Pump RTXReassemble Loosen knob 42 on side access panel Replace hose bracket 25 to lock pump hose into place Compressor Replace and tighten grounding screw Piston/Cylinder Reassembly Valve Plate Motor Ti8890a Cooling Tube 101 Idler Roller Pulley/Belt Assembly Selector Switch KnobRegulator Valve Problem Cause Solution TroubleshootingRelieve Pressure, page 6. Remove Relieve Pressure, page 6. Clean RTX Wiring DiagramParts RTX 1250 Only Part Description Qty ModelsAdditional warning labels available at no cost Fitting Compressor 288856Dimensions RTX Technical DataGraco Information Graco Standard Warranty

RTX 900 specifications

The Hitachi RTX 900 is an innovative and powerful excavator designed to meet the demanding needs of various construction and mining applications. This robust machine combines cutting-edge technology with unparalleled performance, making it a preferred choice for professionals in the industry.

One of the standout features of the RTX 900 is its impressive hydraulic system. The excavator is equipped with a high-performance hydraulic pump that delivers exceptional power and efficiency. This allows the RTX 900 to perform heavy-duty tasks with remarkable ease, including digging, lifting, and material handling. Its smooth hydraulic operation ensures precise control, allowing operators to navigate complex tasks and work environments with confidence.

The RTX 900 is powered by a highly efficient engine that meets stringent emission standards while delivering impressive horsepower. This combination of performance and efficiency not only enhances productivity on the job site but also minimizes operational costs. The engine is designed for easy maintenance, ensuring that downtime is kept to a minimum.

In terms of durability, the Hitachi RTX 900 features a robust chassis and reinforced components that are built to withstand harsh working conditions. Its heavy-duty undercarriage provides excellent stability and traction, making it reliable across various terrains. The excavator is also equipped with advanced cooling systems to prevent overheating during extended operation, ensuring longevity and consistent performance.

Operator comfort and safety are paramount in the design of the RTX 900. The spacious cab is equipped with ergonomic controls, an adjustable seat, and excellent visibility, allowing operators to work comfortably for long hours. Additionally, the machine incorporates advanced safety features such as an automatic locking system and comprehensive monitoring technology to enhance operational safety.

The Hitachi RTX 900 also integrates smart technologies, including telematics, which provide real-time data on machine performance and health. This connectivity allows operators and fleet managers to monitor usage, perform diagnostics, and schedule maintenance proactively, reducing the risk of unexpected failures.

In conclusion, the Hitachi RTX 900 is a versatile excavator that combines power, efficiency, and advanced technology, making it suitable for a wide range of applications. Its impressive performance, durability, and operator-friendly features make it a valuable asset for construction and mining professionals looking to enhance productivity and maintain operational excellence.
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