H Y D R A U L I C
S Y S T E M
14.
15.
16.
17.
Move the lift control lever to LOWER position.
Open bleed screw (4). Keep it open until there is
a constant flow of oil from the bleed screw.
Close bleed screw (4). Release the lift control
lever and stop the engine.
Release the pressure in the hydraulic system and
remove the covers in the lines.
Final Check
18.
19.
20.
21.
22.
Start and run the engine at high idle.
Move the lift control lever to the LOWER posi-
tion and raise the front wheels off the ground.
Move the lift control lever to the HOLD position
and shut off the engine.
Wait 10 seconds. Start the engine. Run the en-
gine at low idle.
If there is movement by the bucket, there is still
air in the system and the entire procedure must
be done again.
NOTE: Use this same procedure to remove air from
the attachment part of the pilot system. The only
difference is that the attachment control lever must
be moved and the bleed screws at the attachment
(third) valve spool must be opened.
ADJUSTMENT PROCEDURE FOR THE
LIFT AND TILT PILOT VALVE
WARNING
Move the lift control lever to FLOAT position to
release the pressure in the pilot oil system.
Shut off the engine.
LIFT AND TILT PILOT VALVE
1. Rod for lift control. 2. Rod for tilt control. 3. Plugs. 4.
TM 5-3805-258-24-1
T E S T I N G
A N D
A D J U S T I N G
T o o l s
N e e d e d :
6 V 4 1 6 1 H y d r a u l i c T e s t G r o up
1. Disconnect rod (2) from lever (5) and rod (1)
from the lever for lift control.
2. Remove plugs (3) from cover (4).
3. Remove cover (4) from the lift and tilt pilot
valve.
R I G H T S I D E P L A T F O R M O P E N ED
(Bottom of Lift and Tilt Pilot Valve)
6. Hose from tilt back stem. 7. Hose from dump stem. 8.
Hose from lift stem. 9. Hose from lower stem.
4. Remove the bolts and open the right hand
platform.
Tilt Back Stem Adjustment
5. Disconnect hose (6) from the bottom of the pilot
valve.
6. Install a 5P5008 Connector where hose (6) was
removed.
7. Install hose with the pressure gauge (0 to 4150
kPa or 0 to 600 psi) on the connector.
C O V E R R E M O V E D F R O M P I L O T V A L VE
10. Sleeve for lift stem. 11. Sleeve for lower stem. 12.
Sleeve for tilt back stem. 13. Sleeve for dump stem.
Cover. 5. Lever for tilt control.
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