844K and 854K Wheel Dozers and 990K, 992K, 993K, 994F and 994H Wheel Loaders Powered Access Stairway Caterpillar


General Information

Usage:

854K 221


Illustration 1g06071666
Typical view of the powered access stairway

The powered access stairway system is designed to improve safety and ergonomics. The powered access stairway improves ingress and egress to and from the bumper platform, which allows for easier access to the stairs.

The powered access system has 590 mm (23.23 inch) wide steps and 666 mm (26.22 inch) between the handrails that provides safe access for the operators. The Controls for the ladder are located on platform at the cab level and at the bumper level.

Caterpillar Information System:

631K Wheel Tractor-Scraper Display and Camera - Clean - If Equipped
C13, C15, and C18 Tier 4 Final Engines Turbocharger
631K OEM Wheel Tractor Systems Hydraulic Accumulator
631K OEM Wheel Tractor Systems Hydraulic Accumulator
631K OEM Wheel Tractor Systems Hydraulic Accumulator
A New Electronic Control Module (ECM) Cover Is Now Used For Certain C9.3 Machine Engines {1408} A New Electronic Control Module (ECM) Cover Is Now Used For Certain C9.3 Machine Engines {1408}
374F and 390F Excavators and 390F MHPU Mobile Hydraulic Power Unit Pump Swash Plate - Health Check
PL61 Pipelayer Fuel System Filter (In-Line) - Replace
PL61 Pipelayer Window Wipers - Inspect/Replace
PL61 Pipelayer Window Washer Reservoir - Fill
New Method for Hystat Calibration without Raising the Machine on All 924K, 926M, 930K, 930M, 938K, and 938M Wheel Loaders {0374, 4350, 4350, 7490, 7610, 7620} New Method for Hystat Calibration without Raising the Machine on All 924K, 926M, 930K, 930M, 938K, and 938M Wheel Loaders {0374, 4350, 4350, 7490, 7610, 7620}
PL61 Pipelayer Track Roller Frame - Inspect
631K Original Equipment Manufacturer (OEM) Wheel Tractor Battery or Battery Cable - Inspect/Replace
631K Original Equipment Manufacturer (OEM) Wheel Tractor Battery - Clean/Check
844K and 854K Wheel Dozers and 990K, 992K, 993K, 994F and 994H Wheel Loaders Powered Access Stairway Powered Stairway System
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PL61 Pipelayer Hydraulic System Oil Level - Check
631K OEM Wheeled Tractor Engine Supplement Relay (ARD Nozzle Heater) - Remove and Install - Tractor
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3516C Generator Set Engines Turbocharger - Remove
631K OEM Wheel Tractor Systems Piston Pump (Steering)
631K and 637K Wheel Tractor-Scrapers Systems Control Valve (Push-Pull)
631K and 637K Wheel Tractor-Scrapers Systems Drive Shaft
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