844 Wheel Dozer Caterpillar


Safety Signs and Labels

Usage:

844 2KZ
There are several specific safety signs on this machine. The exact location of the hazards and the description of the hazards are reviewed in this section. Please become familiarized with all safety signs.

Make sure that all of the safety signs are legible. Clean the safety signs or replace the safety signs if you cannot read the words. Replace the illustrations if the illustrations are not legible. When you clean the safety signs, use a cloth, water and soap. Do not use solvent, gasoline, or other harsh chemicals to clean the safety signs. Solvents, gasoline, or harsh chemicals could loosen the adhesive that secures the safety sign. Loose adhesive will allow the safety sign to fall.

Replace any safety sign that is damaged, or missing. If a safety sign is attached to a part that is replaced, install a safety sign on the replacement part. Any Caterpillar dealer can provide new safety signs.

Do Not Operate



Illustration 1g00303285

This warning label is located in the cab.

------ WARNING! ------

DO NOT OPERATE OR WORK ON THIS MACHINE UNLESS YOU HAVE READ AND UNDERSTAND THE INSTRUCTIONS AND WARNINGS IN THE OPERATION AND MAINTENANCE MANUALS. FAILURE TO FOLLOW THE INSTRUCTIONS OR HEED THE WARNINGS COULD RESULT IN INJURY OR DEATH. CONTACT ANY CATERPILLAR DEALER FOR REPLACEMENT MANUALS. PROPER CARE IS YOUR RESPONSIBILITY.


Do Not Weld On The ROPS



Illustration 2g00303165

This warning label is located on the left side of the ROPS.

------ WARNING! ------

Structural damage, an overturn, modification, alteration, or improper repair can impair this structure's protection capability thereby voiding this certification. Do not weld on or drill holes in the structure. Consult a Caterpillar dealer to determine this structure's limitations without voiding its certification.


Rollover (ROPS) and Falling Object (FOPS) Protective Structure Certification

"The structure, when properly installed on a machine which is not altered to exceed the certification test mass meets, at the time of installation, criteria established by:SAE J396, SAE J1040 April 88, ISO 3471 1986, ISO 3471 1994, SAE J231 January 81 and ISO 3449 1992LEVEL II."

No Clearance



Illustration 3g00303175

This warning label is located on the right side of the machine at the center pivot.

------ WARNING! ------

No clearance for person in this area when machine turns. Severe injury or death from crushing could occur.


"Connect steering frame lock between front and rear frames before lifting, transporting, or servicing machine in articulation area."

"Disconnect lock and secure before resuming operation."

Improper Connections Of The Jump Start Cable



Illustration 4g00303182

This warning label is located in the battery compartment.

------ WARNING! ------

There is limited battery access. Jump starting at the battery, or improper jumper cable connections at the starter, can cause explosion resulting in personal injury.

Do not jump start the machine at the battery. Use the remote starting receptacle or jump start to the positive battery post on the starter.

If remote starting receptacle can not be used, jumper cables may be used at the starter. Always connect the positive (+) cable to positive (+) terminal of the starter and connect negative (−) cable from external source to engine block. Follow procedure from the Operation and Maintenance Manual.


High Pressure Cylinder



Illustration 5g00303207

The high pressure cylinder is used for the brake system. The high pressure cylinder is located on the right side of the machine near the hydraulic tank.

------ WARNING! ------

HIGH PRESSURE CYLINDER

Do not remove any valve, hydraulic fitting, or valve core, nor disassemble any parts until pressure has been relieved or personal injury may occur.

To relieve pressure:

Shut off engine and wait five minutes for hydraulic system pressure to dissipate.

Relieve gas pressure in the accumulator cylinder by opening the charging valve one turn only.

Charge cylinder with dry nitrogen gas.

Precharge pressure _______ PSI _______kPa.

Service pressure (Operating-Loaded) ______PSI ______kPa.

Minimum bursting pressure _____PSI _____kPa.

See your Caterpillar dealer for tools and detailed information required for charging cylinders.


Parking Brake



Illustration 6g00290106

This warning is located on the cover for the parking brake drum.

------ WARNING! ------

BEFORE MANUALLY RELEASING PARKING BRAKE-Stop the engine and block wheels to prevent machine movement which could result in personal injury.

BEFORE DISSASSEMBLING BRAKE-Relieve brake oil pressure by repeatedly applying brakes until brake oil pressure gauge indicates zero.

TO MANUALLY RELEASE PARKING BRAKE-Remove three bolts from the storage holes [ ] in the retainer plate. Install them in the three threaded holes [X] and tighten until solid resistance is felt.

BEFORE OPERATING THE MACHINE-Remove the three bolts and install in the storage holes [ ].


Electrical Shock Hazard



Illustration 7g00303205

This warning label is located on the engine valve cover.

------ WARNING! ------

Electrical shock hazard. Unit injector system. 90-120 volts


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