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4LHD/4LHDX Application Manual
Powertrain Control Solutions
REV 1.1
Heat Shield
Shown in Figure 1.3.4-1 is an available heat shield that protects the gasket, connector, and accumulator from common
exhaust positions. Consult with PCS if this is necessary or adequate for your application.
Figure 1.3.4-1: Heat Shield Exploded View
1.3.5 Grade Limitations
Maximum Grade for Hydraulic Operation
This transmission is validated to operate on longitudinal and lateral slopes of up to 30% (16.7 degree grade) without
detrimental effect on the operation of the hydraulic system at normal working temperature. Consult with Powertrain
Control Solutions if the proposed application exceeds these values.
Maximum Grade for Park System
There is a maximum grade capability of 30% (16.7 degree grade) for park pawl engagement with both the park mechanism
engaged and the parking brake on.
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