New Powered Access Handrail Is Used for Certain 854K Wheel Dozers and 992K Wheel Loaders {7254, 7255, 7256} Caterpillar


New Powered Access Handrail Is Used for Certain 854K Wheel Dozers and 992K Wheel Loaders {7254, 7255, 7256}

Usage:

854K H8M
Wheel Dozer
854K (S/N: KK3201-201; RM3252-254; KK61-203; RM61-267; H9K511-514; H8M314-511)
Wheel Loader
992K (S/N: KK2105-110; RM2163-163; KK4125-134; RM5152-201; ZMX445-445)

Reference: Refer Special Instruction, SEHS0294, "Installation Procedure for the 992K Tier 4, LRC, and Tier 2 Large Wheel Loaders and 854K Tier 4, LRC, and Tier 2 Large Wheel Dozers Powered Access System" "Install Handrail" section for installation instructions

Description Of Change:

Table 1
Revision History 
Revision  Summary 
01  Changes were made to the effectivity 
New powered access handrail is used for the machines listed above. The new handrail is equipped with improved parts which can withstand the dynamic vibration in high severity applications. The new handrail increases the component service life and reduces the machine downtime.

Adaptable To: The following parts are adaptable to the products within the listed serial numbers, and are effective with all products after the listed serial numbers.

Table 2
Required Parts 
Item  Qty  Parts 
550-1119 Handrail Gp 
16  457-0270 Bushing 
16  4W-0435 Quad Ring Seal 
9C-7863 Block 
9X-2041 Screw(1) 
8T-4222 Plated Washer(1) 
(1) Optional part. Use as required.


Illustration 1g06318732
(1) 550-1119 Handrail Gp
(2) 457-0270 Bushing
(3) 4W-0435 Quad Ring Seal
(4) 9C-7863 Block

Note: Bushings & quad ring seals are used in handrail joints.

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