Table of Contents
Rev. 10/30/2020
WTJ-20 MANUAL
Table of Contents
Copyright 2020 Vestil Manufacturing Corp.
Page 10 of 11
6.
Vehicle
: Inspect the vehicle where the crane is mounted. Closely examine the area around the mounting plate.
Look for rust, corrosion, and metal fatigue. Check the mounting plate (base of the mast), the anchoring hardware, and
the vehicle bed/floor particularly around the anchor bolts. Make sure that the mast is securely anchored (i.e. does not
wobble). Confirm that anchoring hardware is in normal condition.
7.
Labels
: Confirm that all labels are in good condition and in place as shown in the
Every 6 months:
Conduct a load test. Lift a test weight equal to 125% of the capacity. After the test, examine the crane, winch,
cable, and the vehicle where the crane is mounted. Look for deformations, cracks, and metal fatigue. Do not continue
to use the crane unless both it and the supporting vehicle are in normal condition.
TROUBLESHOOTING
Always unload the crane and disconnect the winch from the power supply before troubleshooting an issue.
Problem
Possible causes
Solutions
1) Winch doesn’t work when button
pressed
a. No supply voltage
b. Bad connection in control circuit
c. Battery discharged
a. Test with meter. Check circuit
protectors for open condition. If circuit
protection has opened, test all parts of
circuit with multimeter. Verify power
supply cord and controller cordare
properly attached to winch.
b. Test with multimeter.
c. Test with volt meter. Charge battery is
low (12.65V = full charge).
2) Cable jumps or lurches as the
winch operates
d. Poor spooling on winch reel/drum
e. Kink in cable
d. Spool out the cable. Inspect it for
kinks, etc. Respool cable onto winch
reel. Replace cable if damaged.
e. Replace cable if kinks cannot be
straightened.
3) Winch motor hums but drum does
not rotate
f. Overload condition
g. Supply voltage too low
f. Reduce load weight. Verify cable not
binding.
g. Check with meter. Charge battery (DC
units) or change supply cord (AC units).
Supply cord should be as wide and short
as possible.
4) Mast does not rotate without great
effort
h. Knobs tightened.
i. Bearing overly worn.
h. Loosen knobs.
i. Remove mast from mast receiver.
Inspect bearing. Replace bearing if
severely worn.
5) Personnel receive electric shocks
when touching the jib or vehicle when
winch in use.
j. Operating winch in wet conditions
k. Winch wiring problem.
j. Allow winch to dry completely before
using it again.
k. Check winch electrical circuit including
ground.
LABELING DIAGRAM
The unit should be labeled as shown in the diagram. However, label content and location are subject to change so
your product might not be labeled exactly as shown. Compare this diagram to your
. Replace all labels that are damaged, missing, or not easily readable (e.g. faded). Order replacement labels
by contacting the
PARTS DEPARTMENT
http://www.vestilmfg.com/parts_info.htm
. Alternatively, you may
request replacement parts and/or service by calling (260) 665-7586 and asking the operator to connect you to the
A
B
A: Label 1038
C
B: Label 827 (WTJ-20-3) or
828 (WTJ-20-4) [827 shown]
C: Label 287 (covered with label 770)
