424B Backhoe Loader Caterpillar

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Failure to comply with the rated load can cause personal injury or attachment damage. Review the rated load of a particular attachment before performing any operation. Make adjustments to the rated load as necessary for non-standard configurations.

Note: Rated loads are based upon a standard machine with the following conditions:

• lubricants

• full fuel tank

• 80 kg (176 lb) operator

Rated loads will vary with different attachments. Consult your Cat dealer regarding the rated load for specific attachments.

Note: Rated loads should be used as a guide. Attachments, uneven ground conditions, soft ground conditions, or poor ground conditions have effects on rated loads. The operator is responsible for being aware of these effects.

Special hazards (toxic gases, ground conditions, and so on) require special precautions. The operator must determine whether special hazards exist in each application. The operator shall perform the appropriate steps in order to eliminate the hazard.

Rated Load for Backhoe Lifting and Object Handling

The rated load for the backhoe lifting applications is defined by "EN 474-4". Rated operating loads are given according to this standard. Additional rated operating loads are given with "SAEJ31 March 1986" and "ISO 10567 1992" as a reference.

The rated load for the backhoe lifting applications is defined by "EN 474 4 February 1996". The rated load for the backhoe lifting applications is defined as the lesser value of the following conditions at the specified lift point radius:

• 75% of the static tipping load

• the hydraulic lifting load

• 80% of the hydraulic holding load

The rated load for the backhoe lifting applications is defined by "SAEJ31 March 1986" and "ISO 10567 1992" as a reference. The rated operating load for backhoe lifting applications is defined as the lesser value of the following conditions at the specified lift point radius:

• 75% of the static tipping load

• 87% of the hydraulic lifting load

Illustration 1	g03088700
(A) Lift point radius

The lift point radius is defined as the distance from the swing pivot center to the bucket hinge pin for the backhoe. The bucket hinge pin for the backhoe is level with the lower boom hinge pin at each lift point radius (A). Rated loads include the weight of the attachment. The rated operating loads are for the standard machine configuration.

Loader Buckets

The following tables provide the rated operating loads for the standard machine that is equipped with the given bucket. The corresponding dump clearance is given for each bucket at maximum lift height and at the full dump angle. The reach is given for each bucket at maximum lift height and at the full dump angle. Clearance is measured from the ground to the bucket edge in order to dump the load. The reach is measured from the front grill to the bucket edge.

Illustration 2	g03088767
(A) Dump Reach (B) Dump Height

Backhoe Lifting

Illustration 3	g03088793
(A) Lift Point Radius

The bucket hinge pin for the backhoe is level with the lower boom hinge pin at each lifting point in the following tables. Rated loads include the weight of the attachment. The following tables provide the operating loads for the standard machine configuration.