Easy Dayton Jack question

[Michael_in_DE]

Got a 1.5 Ton Dayton jack (model 3Z353) off a garage sale this weekend.

My question is this: It seems like the arm swing arc is really small. like maybe 30 degrees. My craftsman jacks have nearly 80 degrees of swing. (handle goes from nearly straight up and down to almost horizontally flat.) Is this normal for a jack of this older age?

Also the serial numer is "2-73" Was this made in 1973?

Any help is appreciated,
-Mike

This is the resting angle for the handle:

 

[469 runner]

It is designed that way. The pumping action is limited to allow clearance under a vehicle. If the handle were required to be raised to 90 degrees, one would have very little pumping going on with the limited confines of under a car.

 

[Michael_in_DE]

Well, ok. Thanks runner.

 

[ex-x-fire]

That's how my old walker is.