If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Rockola 1448 gripper cam
I recently purchased a Rockola 1448 to restore. I知 new to jukebox repair and I知 trying to troubleshoot some mechanical issues. Should I be able to cycle the gripper cam and arm by rotating the stub of the shaft that sticks out of the bottom of the motor? When I try to do that the shaft starts to rotate but then everything locks up.
|
Ads |
#2
|
|||
|
|||
Rockola 1448 gripper cam
This is common on these old machines, especially if their mechs have not been washed and been dormant for meny years. if you have tried to turn the shaft both directions and the gripper gear "locks up" either way, you have a case of dried oil turning into varnish in the gripper assembly. First, remove the motor and all records anywhere near the gripper. then apply heat to the gripper assembly at the gearbox. The heat can be from a heatgun set at "low" or even a hairdryer. the gearbox sould be made just too hot to hold for more than a few seconds. Then try turning the large gear that the motor pinion gear had connected to. If you can get enough action by this method, set the gripper bow approx vertical and dribble some light lube into the space around the gripper shaft. The idea here is to liquefy the hardened oil in the gripper gearbox. This normally will work so try several times --but do not use excessive force-- the assembly is rugged but some parts are cheap potmetal. Once you get it going, keep working it and add plenty of lube to help flush out the old oil. This can be messy so keep paper towels around the area to absorb the ejected oil and overflow. If you have no luck with the above procedure, you will have to remove the whole gripper assembly and soak it in an emulsifier suah as dilluted floor stripper and hot water. I've never had to remove the gripper to free it up, so you have a good shot at getting it going w/out major disassembly. Rob/NYC On Tuesday, April 24, 2012 5:49:36 PM UTC-5, smarch wrote: I recently purchased a Rockola 1448 to restore. I知 new to jukebox repair and I知 trying to troubleshoot some mechanical issues. Should I be able to cycle the gripper cam and arm by rotating the stub of the shaft that sticks out of the bottom of the motor? When I try to do that the shaft starts to rotate but then everything locks up. -- smarch |
#3
|
|||
|
|||
Rockola 1448 gripper cam
smarch wrote:
I recently purchased a Rockola 1448 to restore. I知 new to jukebox repair and I知 trying to troubleshoot some mechanical issues. Should I be able to cycle the gripper cam and arm by rotating the stub of the shaft that sticks out of the bottom of the motor? When I try to do that the shaft starts to rotate but then everything locks up. Here is my help page on gripper assemblies: http://www.flippers.com/Rockola-tips.html John :-#)# -- (Please post followups or tech enquiries to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Mechanical: 1955 Rock-Ola 1448 - Gripper Drive Shaft Problem | Russo | Juke Boxes | 0 | September 14th 09 06:25 AM |
Rockola Gripper Cam | James McClave | Juke Boxes | 0 | April 9th 09 11:15 PM |
Rockola 1448-1452 | Brian Roth | Juke Boxes | 0 | December 13th 07 02:33 AM |
gripper cam shaft gears | geoffturner | Juke Boxes | 1 | July 20th 07 12:22 PM |
RockOla Gripper problem | Dave | Juke Boxes | 1 | March 1st 07 11:22 PM |