Today’s project is get the Tobin Arp line boring machine operating. With the operating instructions in hand, most of the steps are pretty self explanatory. Untill it gets to the section on securing the block to the parallels,
It says to clamp to a stud at each end of the block. Move the parallels out such that it pulls the stud into the V of the parallel and clamp with P-655.
This seems odd in that on my machine I would be using a stud at the corn of the block….. seems that clamping at the center would be a better option?
Am I missing something ?
Dave Eddie
Tobin Arp TA 14 set up
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
-
Les Schubert
- Posts: 1357
- Joined: Thu Jan 10, 2019 5:47 pm
- First Name: Les
- Last Name: Schubert
- * REQUIRED* Type and Year of Model Ts owned: 27 roadster 13 touring
- Location: Calgary
Re: Tobin Arp TA 14 set up
The machine is very flexible and accommodating Dave
-
Randall strickland
- Posts: 156
- Joined: Sun Jan 06, 2019 5:50 pm
- First Name: Randall
- Last Name: Strickland
- Location: lambsburg va
Re: Tobin Arp TA 14 set up
Once you put the braces on the pan rail it's very sturdy and with a sharp cutter it's not putting much pressure on the block, jmo
-
Dan McEachern
- Posts: 1400
- Joined: Sun Jan 06, 2019 11:08 am
- First Name: DAN
- Last Name: MCEACHERN
- * REQUIRED* Type and Year of Model Ts owned: too many. '14 touring, 2 depot hacks, 2 speedsters
- Location: ALAMEDA,CA,USA
Re: Tobin Arp TA 14 set up
1stt step is to secure the block to the parallels using the lever clamps on the sides of the parallel uprights. Block is then adjusted to align with the bar supports. Next to Final step is to connect corner straps/braces from the pan rail to the machine columns, being careful to not shift/move the block.
Last step is to attach brace rod from pan rail to the drive unit. This is all covered pretty well in the factory manual and also on utube.
Last step is to attach brace rod from pan rail to the drive unit. This is all covered pretty well in the factory manual and also on utube.
-
David Greenlees
- Posts: 169
- Joined: Wed Feb 02, 2022 1:18 pm
- First Name: David
- Last Name: Greenlees
- * REQUIRED* Type and Year of Model Ts owned: 1913 Model T racing car, 1924 Model T Depot Hack with original York #803 body.
- Location: Guilford, VT
- Contact:
Re: Tobin Arp TA 14 set up
One of the reasons for clamping on both sides of a block on a TA14 to to eliminate any chance of it rocking on the parallels. After it has been clamped down I always check the block or crankcase in both planes to make sure there isn't and possible movement while boring it. And a second time after connecting the two steady straps from the back of the machine and from the power head and feed unit.