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CHAPTER 5
6.
Check the system. Make sure the meter powers up after it has been turned on, digits are
legible, and the system functions normally.
7.
Check all wiring for condition (no cracks or splits), security, chaffing, and protection from
possible
damage.
8.
Fixed body trucks: Make sure body springs are intact and bolt locks are in place.
9.
Tipper type trucks: Check the load cell bearing pads. Make sure they are not worn out and
properly aligned and greased. Make sure bolt locks are in place, hinge pins are not bent, and
body guides are intact
.
5.2 PREVENTIVE
MAINTENANCE AND VULCAN
TORQUE
SPECIFICATIONS
The following simple, but important, preventive maintenance steps must be performed periodically.
For example, after the first 500 miles, then monthly, or more frequently, if needed.
1.
Look for mud, ice build up, or other debris between the load cell and bracket. Refer to
location A
shown on Figures 5-C through 5-L.
2.
Check load cell connectors (refer to
location B
shown on Figures 5-C through 5-L), make
sure they are finger tight plus an additional 1/8 of a turn with channel lock pliers. The
additional tightening is necessary to prevent scale errors, which can occur from moisture
entering into the load cell connector.
Do not
grease or lubricate inside the Vulcan load cell
connector or VSL Vulcoder connector. These components are highly sensitive to foreign
substances and inaccurate readings will occur if these components are contaminated.
Your
manufacturer’s warranty does not cover the failure of Vulcan components due to
contamination (use of grease or other conductive substance) in either the Vulcan load
cell connectors or VSL Vulcoder connectors.
If a connector is opened for any reason, you
must clean the load cell connector and cable connector with cotton swabs and isopropyl
alcohol, dry with a hair dryer
(DO NOT OVERHEAT)
, and replace the O-ring before
reconnecting.
3.
Check the torque on load cell cap screws monthly. New trucks must be checked once a week
for 2 weeks. Vulcan On-Board Scales recommended torque values are shown on Figures 5-C
through 5-L and general torque values shown below. As a method of monitoring changes in
fastener torque, Vulcan On-Board Scales recommends applying torque stripes to all fasteners
(see Section 5.1, step 2).
Torque
Specifications: 3/4" 7/8" 1" 1-1/8" 1-1/4"
lb-ft
400-500 400-590 650-890 1000-1400 1450-1780
June 21, 2006
VULCAN ON-BOARD SCALES 1-800-237-0022
Doc. 44-10032-001 Rev. C
©
STRESS-TEK, INC. 2006