ISM, ISMe, and QSM11 – 007-021   Lubricating Oil High Pressure Relief Valve

Table of Contents





Use caution while installing the retainer plug (1). The pressure relief valve spring (2) is under compression. Personal injury can result. Wear face and eye protection.

Install the valve disc (4), washer (3) and spring (2).

Use flat washers equal to 5 mm [0.197 in] with plug driver, Part Number 3376489, to install the new retainer cup plug (1).

Measure the retainer plug depth in the cylinder block.

Relief Valve Retainer Installed Depth

mm in
8.03 MIN 0.316
8.53 MAX 0.336

Last Modified:  23-Jan-2009