HYDRAULIC TANK BREATHER HOSE MAY BE CRIMPED INSIDE THE ROPS POST Caterpillar


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HYDRAULIC TANK BREATHER HOSE MAY BE CRIMPED INSIDE THE ROPS POST [TIBU4297]
HYDRAULIC SYSTEM
TANK GP

CONFIDENTIAL TIBU4297-00

TECHNICAL INFORMATION BULLETIN

JULY 7, 2004

SKID STEER LOADER

MULTI TERRAIN LOADER

216B (RLL711-UP),

226B (MJH1299-UP),

232B (SCH424-UP),

236B (HEN874-UP),

242B (BXM641-UP),

246B (PAT896-UP),

248B (SCL423-UP),

252B (SCP555-UP),

262B (PDT759-UP),

268B (LBA497-UP) SKID STEER LOADERS

247B (MTL605-UP),

257B (SLK1078-UP),

267B (CYC219-UP),

277B (MDH662-UP),

287B (ZSA583-UP) MULTI TERRAIN LOADERS

 

Component Code(s) 5056

SUBJECT: HYDRAULIC TANK BREATHER HOSE MAY BE CRIMPED INSIDE THE ROPS POST

PROBLEM:

The hydraulic tank breather hose (5P-1442 Hose) may be crimped inside the ROPS post. This can cause pressurization of the hydraulic tank.

The hydraulic tank breather assembly includes the 5P-1442 Hose (which connects to the hydraulic tank), the 207-9729 Filter As. (Breather), and the 233-5997 Hose. The 233-5997 Hose is folded onto itself before the breather assembly is inserted into the ROPS post. If the fold was inadvertently made in the 5P-1442 Hose at initial installation at the factory, the hose may be crimped enough to cause pressurization of the hydraulic tank.

SOLUTION:

Withdraw the hydraulic tank breather assembly from the ROPS post and inspect the breather assembly. Ensure that the fold is in the 233-5997 Hose rather than in the 5P-1441 Hose and that the 233-5997 Hose is not crimped. Re-insert the breather assembly in the ROPS post.

Note: Avoid applying pressure at the fold in the 233-5997 Tube in order to prevent creating a crimp or a restriction in this tube.

Figure 1. The proper folding of the 233-5997 Hose for insertion into the ROPS post

(A) ROPS Post

(B) 233-5997 Hose

(C) 207-9729 Filter As. (Breather)

(D) 5P-1442 Hose (from the hydraulic tank)

COPYRIGHT 2004 AVSpare
ALL RIGHTS RESERVED

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