SERVICE MANUAL & ICA
WIPLINE 13000 FLOATS
Page 30
Revision H
P/N 1002548
2.6 MAIN AND NOSE GEAR REMOVAL AND DISASSEMBLY
REMOVAL OF MAIN GEAR OLEO
Jack the aircraft by method described in section 1.2. With main wheels off the ground (both sides), run the gear
up so that the main carriage is approximately 2 inches forward of down lock position. This must be accomplished
to remove the top oleo bolt. In order to remove the lower bolt, it is necessary to remove the wheel on the head
side of the bolt.
REMOVAL OF MAIN GEAR RETRACTION CYLINDER
Relieve pressure in system, place gear selector handle in neutral position (lever between up and down), and
remove hydraulic lines. Remove end cap from end of cylinder. Drain fluid. Remove forward end of cylinder from
bulkhead flange. Remove both cylinder support rings from the bulkhead. NOTE: Piston to be in the up position
for cylinder removal. Remove cylinder from piston and up through top float inspection cover. To remove piston,
remove top inspection cover on top forward end of gear tunnel, accessible from top float inspection cover forward
of step. Pull back piston to expose top of carriage in center of access cover. Remove .25 dia. retention bolt.
Remove piston by pulling aft. See figure 2.6 for part breakdown.
REMOVAL OF MAIN GEAR DRAG LINK
Remove drag link from trunnions on step bulkhead. Axle is heat shrunk to drag link and is not removable.
REMOVAL OF NOSE GEAR TROLLEY ASSEMBLY FROM NOSE BOX
Gear must be in down position. Unbolt the spring from the trolley. Relieve the pressure in system, place gear
selector handle in neutral position (lever between up and down), and remove rear hydraulic line. Remove (4) bolts
on forward end of cylinder. Drain fluid. Pull aft to expose internal piston rod. Loosen jamb nut on forward side of
cylinder ram at rod end. Turn piston from aft side of nose box out of rod end. Push on trolley assembly to unlock
and remove the bottom thru-bolts. Slide out of nose box. Note: On installation, adjust piston so it bottoms out on
aft flange at the same time as the bearings when nose gear is in locked position. Also note orientation of trolley
blocks. The side with the most edge distance from hole is to go toward each other on inside of trolley. (See figure
2.9 for details).
REMOVAL OF NOSE GEAR BOX
Remove bolts securing forward box from nose bulkhead. Remove bolts securing aft box from bulkhead (2). Slide
box out from front of float. Note: Sealant will have to be cut for removal and replaced when installing.
REMOVAL OF LOWER NOSE GEAR FROM PIVOT BLOCK
On top of pivot block, remove cotter pin from retaining nut. Remove nut. On aft side of pivot block, remove the (2)
cap bolts on .25 thick cover. Remove spring. This will loosen retaining ball and lower fork will slide out. Refer to
figure 2.10 for assembly.
REMOVAL OF NOSE GEAR
Remove the nose gear from the nose box by unbolting the spring (4 bolts).
