Usage:
M312 (6TL),
M315 (7ML),
M318 (8AL, 6ES),
M320 (6WL, 9PS) Excavators
Description of Change: The new regulator is designed with four bolts to secure it to the travel motor housing. The former design had two bolts. The additional bolts prevent leakage of hydraulic fluid between the regulator and the control plate of the travel motor. The regulator's control spools have also been redesigned to be less affected by contamination in the hydraulic fluid.
Adaptable To: The new 151-4764 Housing Regulator Group replaces the former 121-9949 Housing Regulator Group. The new regulator is effective with the M312 (6TL384), M315 (7ML756), M318 (8AL1145, 6ES231), and M320 (6WL110) Excavators. The new regulator is adaptable to the M312 (6TL1-383), M315 (7ML1-755), M318 (8AL1-1144, 6ES1-230), and M320 (6WL1-109) Excavators.
The 151-4764 Housing Regulator Group is being used on all new M320 (9PS) machines.