2013/09/20 Caterpillar

OEM

CAT WDS (S/N: M3J1-UP)

Off-Highway Truck/Tractor

785D (S/N: DMC1-UP; MSY1-UP)

789D (S/N: SPD1-UP; SHH1-UP)

793D (S/N: FDB1-UP)

793F (S/N: SND1-UP; SSP1-UP; RBT1-UP)

793F AC (S/N: EMD1-UP)

795F AC (S/N: ERM1-UP)

797F (S/N: LAJ1-UP; WSP1-UP)

Service Magazine, SEPD1658, 29, August 2013, "A Rework Procedure for the Power Access Stairway (PAS) On Certain Off-Highway Trucks is Now Available". Disregard this article. Refer to the article that follows.

Description Of Change: The new Tread Plate and the new Seal for the PAS will provide protection for internal components from dirt and debris.

Illustration 1	g03422416
View of PAS platform with the new plate and seal.

Table 1

Model	Adaptable To	Effective With
785D	(S/N: MSY1-591)	(S/N: MSY592-UP)
785D OEM	(S/N: DMC1-168)	(S/N: DMC169-UP)
789D	(S/N: SHH1-315; SPD1-566)	(S/N: SHH316-UP; SPD567-UP)
793D	(S/N: FDB1-1789)	(S/N: FDB1790-UP)
793F	(S/N: SSP1-922)	(S/N: SSP923-UP)
793F AC	(S/N: EMD1-77)	(S/N: EMD78-UP)
793F CMD	(S/N: RBT1-164)	(S/N: RBT165-UP)
793F XQ	(S/N: SND1-131)	(S/N: SND132-UP)
795F AC	(S/N: ERM1-278)	(S/N: ERM279-UP)
797F	(S/N: LAJ1-466)	(S/N: LAJ467-UP)
797F XQ	(S/N: WSP1-124)	(S/N: WSP125-UP)
WDS1	(S/N: M3J1-114)	(S/N: M3J115-UP)

Adaptable To:

Reference: Refer to Special Instruction, REHS8613, "Rework Procedure for the PAS (Powered Access Stairway) on Certain Off-Highway Trucks" for information regarding the Power Access Stairway (PAS) rework instructions.

Table 2

Required Parts
Qty	Part Number	Description 328-1169 Tread Plate
6	141-9203	Screw
1	512-9936	Gasket
1	425-0997	Plate As
1	425-0999	Plate As
8	8T-4121	Hard Washer
1	N/A Fabricated	Hard Washer
4	N/A Fabricated	Hard Washer