MAIN CONTROL VALVE PLUGS LEAKS ON M300C-SERIES WHEELED EXCAVATORS
Usage:
CONFIDENTIAL TIBU3858-00
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TECHNICAL INFORMATION BULLETIN |
May 14th, 2003 |
Wheeled Excavator |
M318C (BCZ1-479) |
Component Code(s) 5051 |
SUBJECT: MAIN CONTROL VALVE PLUGS LEAKS ON M300C-SERIES WHEELED EXCAVATORS
PROBLEM:
The 206-7656 (4 locations) and 234-9355(1 location) plugs, installed on the main hydraulic control valve of the models listed above, can leak hydraulic oil. These plugs are installed on the 191-2762 valve on M318C models, and the 197-9997 valve on M322C models. The location of these plugs is identified in Fig. 1 below.
SOLUTION:
To resolve these plug leaks, remove each plug, install a new 6V4367 o-ring to the plug, and re-install the plug. Torque each plug to 300Nm.
Illustration 1. Main Control Valve
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