Upright TM12, Service Manual

Page: 48 / 84

Hydraulics Section 2 - Service and Repair
Page 2-10 107099-002 TM12 Work Platform
H
Y D R A U L I C
P
U M P
Figure 2-6:
Hydraulic Pump
The hydraulic pump is located in the power mod-
ule, and is mounted on the rear of the motor.
R
EMOVAL
NOTE: If the hydraulic tank has not been drained, suitable
means for plugging the hoses should be provided to
prevent excessive fluid loss.
1. Mark, disconnect and plug the hose assemblies.
2. Loosen the capscrews and remove the pump
assembly from the motor.
I
NSTALLATION
1. Lubricate the pump shaft with general purpose
grease and attach the pump to the motor with
the capscrews.
2. Using a crisscross pattern, torque each capscrew a little at a time until all capscrews are torqued to
27 N-m ( 20 ft. lbs. ).
3. Unplug and reconnect the hydraulic hoses.
4. Check the fluid level in the hydraulic tank before operating the machine.
L
I F T
C
Y L I N D E R
V
A L V E
A
S S E M B L Y
E
MERGENCY
D
OWN
V
ALVE
The Emergency Down Valve Knob is located at the front of the machine. The valve is a 24 Volt DC sole-
noid mounted on the base of the cylinder.
F
LOW
C
ONTROL
V
ALVE
A
SSEMBLY
The flow control valve is located behind the panel on the left side of the machine, toward the rear.
Figure 2-7:
Cylinder Valve
1
2
3
5
4
1. Inlet Hose
2. Outlet Hose
3. Capscrew 4. Pump Assembly
5. Electric Motor
2
3
1. Valve Block
2. Flow Control Valve
3,8 lpm ( 1 gpm )
3. Fitting, 6MB - 6MJ
4. Fitting, 6MB - 4MJ x 90
°
5. Fitting, 6MB - 6MJ x 90
°
Front
Emergency Down Valve
4 1
5