June 2007
REV C
7-10
Differential Lock-up Manifold Components
(optional on GTH-636 and GTH-644)
The differential lock-up manifold is the inboard of the two similar manifolds located on the chassis main
tube next to the cab, mounted closest to the centerline of the machine.
Index
No.
Description
1
Solenoid valve, 2 position 3 way ...... JA .......... Releases parking brake .............................. 20 ft-lbs / 27 Nm
Coil nut .................................................................................................................................. 40 in-lbs / 4.5 Nm
1
Note: 'alpha' callouts refer
to corresponding notes on
the hydraulic schematic;
alphanumeric callouts refer
to the electrical schematic
Part No. 97487
GTH-636 • GTH-644 • GTH-842 • GTH-844 • GTH-1048 • GTH-1056
Schematic
Item
Function
JA
Y68
Section 4 • Repair Procedures
MANIFOLDS
Torque
4 - 57