JLG TOUCAN 861 Service Manual page 81

Table of Contents

Advertisement

V-11
Additionnal manifold
Bloc additionnel
T11
T
3
4
2
1
Indications for maintenance on the drive
manifold.
Lubricate seals and surfaces during assembly:
Hydraulic oil or grease "Parker O' Lub" recommended.
2-speed manifold :
(10) : Control valve 4/2 with electrical controls.
Management of the motors supply mode: series
or parallel (mode by default).
(11) (12) : Counterbalance valves.
Ensure the machine's dynamic braking.
(11) : Braking for reverse drive.
(12) : Braking for forward drive.
(13) (14) : Pressure relief valves.
Motor protection against pressure peaks (in
particular during sudden reversal of the drive
direction).
(15) : Check valve.
Supply to the motor on the outside of the bend in
the series motor configuration (3rd gear active).
- Works in :
forward drive left steering,
reverse drive right steering.
(16) : Circuit selector.
Supply to the brakes.
Substraction of flow to obtain "low speed" (see
"additionnal manifold").
(17) : Circuit selector.
Supply to the brake.
(18) : Jet valve.
Brake management.
Free flow : immediate supply to release the brakes
at beginning of drive movement.
Models
Toucan 861
Updated 04-06
REMOVAL - INSTALLATION
B1
B1
A1
A1
T1
T1
C
C
A4
B4
2 speeds manifold
Bloc 2 vitesses
D
E
11
18
16
17
12
19
15
Calibrated flow : temporisation of brake action
when drive movement stops (to enable
dynamic braking by the counterbalance
valves).
Specific tooling: Ref. 990011.
Ensure the O ring is present on the shoulder.
(19) : Pressure relief valve.
Dumping of excess flow to the supply of the motor
on the outside of the bent in configuration "series
moteurs" (3rd gear active).
Limits the motor torque in reverse drive.
Additionnal manifold :
(1) : Control valve 2/2 with electrical controls.
Management of low speed by dumping the flow.
(2) : Jet.
Limitation of flow dumping.
Tools :
- Bloc FP hydraulique :
Allen key 4mm (jet holding screw).
Screw M5x30 (to screw in the jet for its
extraction).
- Bloc Flutec Hydac : Allen key 3mm.
(3) (4) : Control valves 2/2 with hydraulic controls.
Diversion of the motor return flow: direct return to
the tank without going through the upper control
valve.
(3) :
Return forward drive.
(4) :
Return reverse drive.
H2
B2
H3
B3
H21
H31
14
13
A
T
B
P
10
V-11
81

Advertisement

Table of Contents
loading

Table of Contents