Full Product Manual

Rev. 1/24/2018 WTJ-4, MANUAL
Copyright 2018 Vestil Manufacturing Corp. Page 7 of 11
Operation of
Relief Valve
Installing the Crane on a Vehicle:
NOTE: Installation requires at least 2 people.
Step 1: Contact the vehicle manufacturer to determine the appropriate
place to install the crane as well as the hardware necessary to fasten the
crane to the vehicle. Bolt holes in the mounting plate are for
1
/
2
” bolts.
When choosing an installation site, consider the following factors:
a. The vehicle must be able to support the combined weight of the
crane + load weighing 125% of the capacity (2,000 lb. x 1.25 =
2,500 lb.).
b. The installation location must also be able to withstand the
dynamic forces exerted on it by the crane when the vehicle is in
motion.
c. The boom should be able to rotate freely when raised, i.e. without
running into the sides of the vehicle.
Step 2: Review crane dimensions diagrammed on page 2 before
selecting an installation location. Place the receiver in the location where
it will be installed. Mark the locations of the bolt holes on the vehicle
surface by using the mounting plate as a template. Drill a
9
/
16
” hole at
each mark.
Step 3: Align the mounting plate with the holes drilled in step 2. Person
#1 should stabilize the crane while Person #2 fastens the mounting plate
to the vehicle. Use only with the hardware and any backing or stiffeners
recommended by the vehicle manufacturer.
Step 4: Assemble the crane following the instructions on p. 6.
Step 1: Create a foundation for the crane. The necessary minimum
foundation requirements are shown in the diagrams. When the foundation
is adequately cured, install a
7
/
8
” jam nut on each anchor bolt. Wind the nuts
to the surface of the foundation. Level across opposite jam nuts by raising
or lowering specific nuts until all of the nuts are level. Then, fill the center of
the bolt pattern (see “Overhead View of Foundation” diagram) with grout
(e.g. Morta Mix) to create a pedestal. The top of the grout pedestal should
be level with the jam nuts.
Step 2: Align the bolt holes in the mounting plate (attached to the bottom of
the receiver) with the anchor bolts and lower the mounting plate onto the
leveling (jam) nuts. Install
7
/
8
” lock nuts on the anchor bolts but do not
tighten them. Plumb the levelness of the receiver in 90° increments. Adjust
the leveling nuts to fine tune levelness. Once the receiver is level, tighten
the lock nuts against the top of the mounting plate.
Step 3: Assemble the crane by following the instructions in “Assembling the
crane” on p. 6.
Installing the Crane in a Fixed
Location (not in a vehicle)
Anchor
bolt hole
Mounting
plate
L
W
Mortar pedestal in
center of bolt pattern
Model L
WTJ-4 10
5
/
8
”
WTJ-4-G 11”
WTJ-4-SS 11”
Model W
WTJ-4 10
5
/
8
”
WTJ-4-G 11”
WTJ-4-SS 11”
Overhead view of foundation
8
Receiver
60”
60”
Relief valve
Receiver
Mounting plate with
9
/
16
” bolt holes
Large pulley
Pump
handle
receiver
Pump
handle
Locking
bolt
Open (lowers
boom)
Close (raises
boom)
Boom in
“short”
configuration
Boom shown in
“long” configuration
Pump
handle
retain
er
Mast
handle
Winch
Winch
handle
Crane features
Spring pin
Fixed
hook
Winch hook
Chain
slot