Greenlee Textron - Greenlee 855 Instruction Manual

Bender Head Disassembly (cont'd)
16. Assemble 1-1/2" roller assembly in reverse order
noting the following:
• Slip each O-ring over side plates until reassembly
is complete and then slip O-rings between rollers
and pivot balls.
• Clean and lubricate all mating surfaces with a
high quality grease.
• Use Loctite 271 on hex head bolts (93). Torque
to 54 to 61 Nm (40 to 45 ft-lb).
17. Reassemble roller assemblies to support arms (71)
making sure that the tail rollers are to the right if the
narrow gap of the support arms are towards you.
18. Reassemble support roller assembly to bender.
Adjust end clearance with set screw (107) as
necessary to allow non-binding retraction of roller
assembly in the horizontal position.
19. Reattach springs.
1/2" to 1-1/4" Roller Support Unit (503 8199.7)
1. Remove pivot shaft.
2. Remove roller support.
3. Lubricate roller axles through 1/8" holes in each
roller with a chain lubricant.
4. Reassemble in reverse order.
Optional 1/2" to 1-1/4" Roller Support Unit
(500 0934.6)
1. Remove pivot shaft.
2. Remove roller support.
3. Remove one retaining ring on each roller axle.
4. Remove axles and rollers.
5. Clean and lubricate all mating surfaces with a high
quality grease.
6. Reassemble in reverse order.
RETENTION CAM
1. Remove bolt securing retention cam and remove
washer, spring, shaft, and cam (113) (111) (112)
(109) (108).
2. Remove switch cover screws and switch
cover (42) (38).
3. Remove four screws securing top cover and remove
cover.
4. Unplug unload lockout switch from I/O board.
5. Remove screws and nuts securing unload lock-out
switch.
6. Pull switch unit from bender.
Note: Attach a wire or string to the lock-out switch at
the I/O board to serve as a retrieval line to pull the new
wire and plug up through the unit.
Greenlee Textron / Subsidiary of Textron Inc.
855 Smart Bender™
7. Reassemble in reverse order noting the following:
• With the bender oriented in the vertical position,
rotate the round plate (111) until the right side
edge of the cam is pointed straight down or within
1/4" left of being straight down. Make sure both
ends of the spring are engaged in the holes of the
cam and round plate. Tighten the screw while
holding the round plate in position with pliers to
prevent it from rotating.
• Check to make sure the roller support handle will
fully engage and retract without catching on the
cam holding surface. This should be done in both
the vertical and horizontal bending positions. It
should also be done with the cam positioned as
far left and as far right as friction will allow it to
stay.
• Once everything is tightened down in the proper
position, push in the limit switch trip arm. You
should hear the switch click on. If not, loosen the
two screws and nuts (40 and 41) and slide the
switch to the right and retighten. Push the cam
towards the switch to make sure any free play will
not trip the switch. Rotate the cam until the switch
trip arm rides up on top of the tripping surface of
the cam. You should hear the switch trip on. If not,
move the switch to the left to a point where it
does. You should hear the switch click off when
the cam is released. If you cannot move the
switch enough to get it to trip properly, use
needlenose pliers to slightly bend the arm.
35 4455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
1/4"
Cam Holding
Surface
Tripping Surface
of Cam
Limit
Switch
Arm