CAT MINING TRUCKS CAT PAYLOAD MANAGEMENT GUIDELINES ®
Including 10/10/20 Policy and Payload Placement August 2011
PART I 1. SCOPE This document is intended to communicate the 10/10/20 payload policy, the maximum operating weights, and the associated payload guidelines that Caterpillar will use in support of warranty considerations and maintenance and repair contracts (MARCs) for the mining trucks. All definitions and calculations are based on the use of standard radial tires.
2. STANDARDS This document applies to all current Cat® mining trucks. It is not applicable to previous models. versions of the 10/10/20 truck payload policy and is applicable for current and future machines. Placement, for best practices discussion.
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Cat Mining Trucks Payload Management Guidelines
4. WEIGHT CALCULATION FLOW SHEET
5. GENERAL
SAMPLE CALCULATION FLOWCHART
Base Machine Weight (BMW)
Tire, Rim, + Fuel, Selected = Attachments Operator Weight
Operating Chassis Weight (OCW)
+
=
Body Weight
Operating Machine Weight (OMW)
+
Debris Weight (DW)
=
Empty Machine Operating Weight (EMOW)
6. STATEMENT OF POLICY “No more than 10 percent of payloads may exceed 110% the target payload; no single payload shall ever exceed the Maximum Allowable Payload, typically 120% of Target Payload. The mean of the payloads shall not exceed the target payload, hence no more than 50 percent of payloads may exceed the Target Payload.” The rated capacity of the tires should always be considered in any evaluation.
Target Gross Machine Weight (TGMW)
Target Payload (TP)
x
Empty Machine Operating Weight (EMOW)
+ 1.2
=
Target Payload (TP)
Empty Machine Operating Weight (EMOW)
< _
Maximum Gross Machine Weight (MGMW)
Figure 1. Calculation Flowchart Figure 2. Payload Distribution
Cat Mining Trucks Payload Management Guidelines
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Cat Mining Trucks Payload Management Guidelines
SAMPLE CALCULATION 793F*
+ Attachments + Fuel (2840 liter/750 gal) Total
7. SUPPORTING ILLUSTRATIONS
= Operating Chassis Weight (OCW)
OPERATING CHASSIS, TARGET GROSS, AND MAXIMUM GROSS MACHINE WEIGHTS Model
Serial No. Prefix
OCW
Target GMW
APX
217,759 lb
700,000 lb
779,700 lb
Total
= Operating Machine Weight (OMW)
= Empty Machine Operating Weight (EOMW)
5,318 lb
2412 kg
175,472 lb
79 593 kg
269,473 lb
122 231 kg
72,977 lb
33 102 kg
342,450 lb
155 333 kg
352,724 lb
159 993 kg
498,276 lb
226 015 kg
= Target Payload (TP)
793D MA1
FDB
Target Payload (TP) x 1.2
Check that this value is < Maximum Gross Machine Weight (MBMW)
434,337 lb
1,257,000 lb
1,415,000 lb
797F
LAJ
597,931 lb
271 218 kg
950,655 lb
431 211 kg
*All truck weights will vary due to different body configurations and attachments.
All truck weights were calculated using the base mandatory attachments and will vary due to different body configurations and attachments. For more detailed and specific truck wei ghts refer to your Caterpillar representative. Cat Mining Trucks Payload Management Guidelines
MGMW
785C
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Cat Mining Trucks Payload Management Guidelines
