JLG 534D-10 - Manual (Page 100)

Hydrostatic Drive Pump
6.2 534D-9, 534D-10 & 544D
6.1 DRIVE PUMP ASSEMBLY
COMPONENT TERMINOLOGY
To understand the safety, operation and maintenance
information presented in this section, it is necessary that
the operator/mechanic be familiar with the names and
locations of the major assemblies of the drive pump. The
following illustration identifies the components that are
referred to throughout this section.
R
X 1
X 2
MX0870
P
S
T 1
F A
T 2
P
S
G
M A
M B
PORT BLOCK
DIRECTIONAL VALVE
STROKING PISTON
ADJUSTMENT
DA CARTRIDGE
P O R VALVE
REVERSE HIGH PRESSURE RELIEF VALVE
FORWARD HIGH PRESSURE RELIEF VALVE
TOP VIEW
SIDE VIEW
TEST PORT (REVERSE)
TEST PORT (FORWARD)
DRIVE SHAFT
PUMP HOUSING
CHARGE PUMP
RELIEF VALVE
CHARGE PUMP
OUTPUT PORT