Hydraulic Cabinet Gauges May Leak on Certain 794 AC Off-Highway Trucks {7450, 7554} Caterpillar


Hydraulic Cabinet Gauges May Leak on Certain 794 AC Off-Highway Trucks {7450, 7554}

Usage:

794 AC MN5
Off-Highway Truck/Tractor
794 AC (S/N: MN51-UP; MT51-UP)

Introduction

The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.

Problem



Illustration 1g06370877
(A) 432-9384 Pressure Gauge
(B) 516-0957 Pressure Gauge

432-9384 Pressure Gauge (A) and 516-0957 Pressure Gauge (B) in the hydraulic cabinet may leak on the machines listed above.

Solution

Caterpillar is aware of this problem and is recommending the following interim corrective solution.

------ WARNING! ------

Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.


Table 1
Required Parts 
Item  Qty  Part Number  Part Name 
8T-2353  Adapter 
214-7566  O-Ring Seal 
214-7568  O-Ring Seal 
6V-0852  Dust Cap 
6V-3965  Fitting 


Illustration 2g06375894
Pressure tap
(1) 8T-2353 Adapter
(2) 214-7566 O-Ring Seal
(3) 214-7568 O-Ring Seal
(4) 6V-0852 Dust Cap


Illustration 3g06370894
Pressure tap
(5) 6V-3965 Fitting

Replace each leaking gauge (A) with adaptor (1), O-ring seal (2), O-ring seal (3), dust cap (4), and fitting (5).

Replace each leaking gauge (B) with adaptor (1), O-ring seal (2), O-ring seal (3), dust cap (4), and fitting (5).

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