JLG 40H Parts Manual - Manual (Page 7)

3120241 iii
FIGURE NO. TITLE PAGE NO.
TABLE OF CONTENTS
4-5 CONSOLE BOX ASSEMBLIES - PQ CONTROLLERS WITH PROP TELE
(MACHINES BUILT PRIOR TO SEPTEMBER 1991). . . . . . . . . . . . . . . . . . . . . . . . . .4-22
4-6
CONSOLE BOX ASSEMBLIES - PQ CONTROLLERS AND VICKERS VALVE
(MACHINES BUILT SEPTEMBER 1991 TO PRESENT). . . . . . . . . . . . . . . . . . . . . . .4-26
4-7
CONSOLE BOX ASSEMBLY - OEM CONTROLLERS. . . . . . . . . . . . . . . . . . . . . . . . . . .4-32
4-8 CONSOLE BOX ASSEMBLY - HYDRAULIC CONTROLS.. . . . . . . . . . . . . . . . . . . . . . . .4-36
4-9 CAPACITY INDICATOR INSTALLATION (OPTIONAL). . . . . . . . . . . . . . . . . . . . . . . . . . .4-40
4-10 OPTIONAL COMMON PLATFORM MOUNTED COMPONENTS. . . . . . . . . . . . . . . . . . .4-46
SECTION 5 - CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
5-1 AXLE LOCKOUT CYLINDER ASSEMBLY - 4WD/2WS (PRIOR TO SEPTEMBER 1992)
(USE WITH OPTIONAL OSCILLATING AXLE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
5-2
AXLE LOCKOUT CYLINDER ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
5-3 LIFT CYLINDER ASSEMBLY - BOOM (PRIOR TO APRIL 1993) . . . . . . . . . . . . . . . . . . .5-10
5-4 LIFT CYLINDER ASSEMBLY - BOOM (APRIL 1993 TO PRESENT) . . . . . . . . . . . . . . . .5-12
5-5 LIFT CYLINDER ASSEMBLY - EXTEND-A-REACH (40H+6 ONLY) . . . . . . . . . . . . . . . .5-14
5-6 MASTER CYLINDER ASSEMBLIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-16
5-7 SLAVE LEVEL CYLINDER ASSEMBLIES (BUILT PRIOR TO JANUARY 1987) . . . . . . . .5-18
5-8 SLAVE LEVEL CYLINDER ASSEMBLIES (BUILT JANUARY 1987 TO APRIL 1992). . . .5-20
5-9 SLAVE LEVEL CYLINDER ASSEMBLIES (BUILT APRIL 1992 TO PRESENT) . . . . . . . .5-22
5-10 SLAVE LEVEL CYLINDER ASSEMBLIES (MODEL 40H+6 EXTEND-A-REACH)
(PRIOR TO S/N 47925) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-24
5-11
SLAVE LEVEL CYLINDER ASSEMBLIES (MODEL 40H+6 EXTEND-A-REACH)
(S/N 47925 TO PRESENT). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-26
5-12
STEER CYLINDER ASSEMBLY - 2WD (PRIOR TO MID 1984) . . . . . . . . . . . . . . . . . . . .5-28
5-13 STEER CYLINDER ASSEMBLY - 2WD (MID 1984 TO PRESENT) . . . . . . . . . . . . . . . . .5-30
5-14 STEER CYLINDER ASEMBLY - 4WD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-32
5-15 TELESCOPE CYLINDER ASSEMBLY (2-SECTION) (PRIOR TO JULY 1985.) . . . . . . . .5-34
5-16 TELESCOPE CYLINDER ASSEMBLY (2-SECTION) (JULY 1985 TO PRESENT) . . . . . .5-36
5-17 TELESCOPE CYLINDER ASSEMBLY (3-SECTION) . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-38
5-18 CYLINDER BELLOWS INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-40
SECTION 6 - HYDRAULICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
6-1 HYDRAULIC DIAGRAM LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
6-2 AXLE LOCKOUT HYDRAULIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6
6-3 DRIVE HYDRAULIC DIAGRAM (2WD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8
6-4 DRIVE HYDRAULIC DIAGRAM (4WD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10
6-5 LEVEL HYDRAULIC DIAGRAM (2-SECTION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-14
6-6 LEVEL HYDRAULIC DIAGRAM (3-SECTION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-16
6-7 LEVEL HYDRAULIC DIAGRAM WITH EXTEND-A-REACH AND ROTATE SUPPORT. . .6-18
6-8 LIFT HYDRAULIC DIAGRAM (VICKERS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-20
6-9 MANUAL DESCENT HYDRAULIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-22
6-10 PUMP HYDRAULIC DIAGRAM WITH 3-CYLINDER DEUTZ . . . . . . . . . . . . . . . . . . . . . .6-24
6-11 PUMP HYDRAULIC DIAGRAM WITH FORD ENGINES (MARCH 1995 TO PRESENT) .6-28
6-12 ROTATE HYDRAULIC DIAGRAMS 2-SECTION AND 3-SECTION BOOMS . . . . . . . . . .6-32
6-13 SEQUENCE HYDRAULIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-34
6-14 STEER HYDRAULIC DIAGRAM 2WD AND 4WD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-36
6-15 SWING HYDRAULIC DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-38
6-16 TELESCOPE HYDRAULIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-40