Vestil AHA Series, Instruction Manual

Page: 20 / 24

Table of Contents Rev. 2/4/2021 AHA MANUAL
Table of Contents Copyright 2020 Vestil Manufacturing Corp. Page 20 of 24
Step 8: Connect the casters to the legs.
a) Use a fork truck or hoist to lift a leg 8-10 inches above the ground.
b) Position a caster beneath the leg. Attach it using the hardware shown in either diagram 8A or 8B. Tighten
hardware to 15- 20ft∙lb with a torque wrench.
c) Repeat steps a-b for the other 3 legs.
Your Vestil AHA-series crane is now ready to use.
3
3
3
/
8
in. zinc-plated
lock washer
3
/
8
in. zinc-plated
hex nut
Diagram 8B: Caster installation for 6,000 lb. capacity
models (AHA-6-#-#)
3
/
8
in. SAE zinc-
plated flat washer
3
/
8
in. SAE zinc-plated
flat washer
Diagram 8A: Caster installation for 2,000 lb. and 4,000 lb.
capacity models (AHA-2-#-# and AHA-4-#-#)
3
/
8
in. -16 x 1¼ in. HHCS
#2 zinc-plated bolt
3
/
8
in. -16 x 1
1
/
2
in.
HHCS #2 zinc-
plated bolt
3
/
8
in. zinc-plated
lock washer
3
/
8
in. zinc-plated
flat washer
3
/
8
in. zinc-plated
hex nut
Each caster has a spring-biased locking pin. The end of the pin
seats into notches in the horn assembly of the caster. Notches
are located at 90-degree intervals around a circle, which allows
the caster to be locked in any 1 of 4 positions. NOTE: V-groove
casters can be ordered without the 4-position lock feature.
To change caster position:
1) Grab the pin ring and pull the pin out of a notch.
2) Turn the caster.
3) Release the pin.
4) Turn the caster until the pin seats into the closest notch.
Pin
ring
Pin
ring
Pin ring
Notch
Notch
Locking
pin