JLG 19BD Service Manual - Manual (Page 49)

SECTION 2 - SERVICE PROCEDURES
3121154 – JLG Lift – 2-27
CONTINUE NORMAL MAST ASSEMBLY AT STEP 21
LIFT CYLINDER INSTALLATION - FOR MACHINE
S/N- 0130005748
17. Slide the mount into mast section-1 and check for
side to side clearance. Use mounting shims of equal
thickness on each side to center the mount in the
closed rail portion if necessary.
NOTE: If hydraulic cylinder needs to be extended, the pro-
tective caps on the extend and return ports will need
to be temporarily removed. Be careful not to nick or
scour rod surface when extending, also catch any oil
draining out of cylinder to avoid spillage onto work
area.
18. Slide mast section-2 out of mast section-1 approxi-
mately one foot.
19. Slide the lift cylinder into the closed rail side of mast
section-2 with rod end to top and port end to bottom
of mast. Cylinder should extend out of mast on both
ends of the mast with the port end resting in the cyl-
inder mount at the bottom of the mount. The manual
descent valve should be pointing down towards the
back of the mast assembly.
20. Loosely assemble the cylinder mount cap onto the
lift cylinder mount to hold the cylinder assembly in
place.
CONTINUE NORMAL MAST ASSEMBLY AT STEP 21
Lift Cylinder Mount Installation
(ALL MACHINES EXCEPT S/N - 0130005748)
1. Lift Cylinder 3. Cylinder Attach Rod Snap Rings
2. Cylinder Attach Rod 4. Cylinder Side Mounting Plates
Lift Cylinder Mount Installation
(MACHINE S/N - 0130005748)
1. Cylinder Mount 3. Mount Reinforcement Plate
2. Shim Stock 4. Mount Bolts/Washers (a)
Notes: (a) Apply Loctite #242 to threads.
3
4
1
2
Lift Cylinder Mount Installation
1. Mount Shoulder Screws 3. Upper Half of Cylinder Mount
2. Cylinder Attach Screw 4. Cylinder Valve Block
1
2
3
4