- Interlocks, holding valves, guards, etc.
- Operational controls
- Hydraulic oil level and leaking
- Damage to outrigger and boom structures
- Tire condition
- Lubrication of moving parts
Frequent check points on the delivery system include, but are not limited to:
- Boom delivery system (hard piping)
- Delivery hoses
- Cables & slings
- Safety signs and decals
Periodic inspections are broken up into a structural portion and a more mechanical portion. The structural portion requires that a visual weld inspection be performed by a person qualified to CSA standard W178.2 or a representative authorized by the manufacturer. This inspection is to include the placing boom and structural support system for corrosion, cracking, or other damage as well as an inspection of the boom pin for wear. The mechanical portion covers all the items in the frequent inspection, as above, plus the following:
- Gear lash and bearing clearances
- Loose / missing bolts, pins & pin retainers
- Bearings and gears for mounting & wear
- Hydraulic / Pneumatic pumps, valves, etc.
- Cracks / damage to the truck mounting
- Presence & condition of decals
- Concrete pump components
When the chips are down, you only get credit for inspecting your concrete pumper if the inspection was properly documented. Therefore, the standard required that all inspection information be kept in a Concrete Pump Log for as long as the pump is in service. All details of inspection, maintenance, modifications, etc. are to be kept in the log in a logical and chronological sequence. Details such as who performed the work and how many hours were on the machine at each service are to be kept in the log.
The log is to be considered a standard part of the machine and is to be supplied with the machine when it is sold.
The new CSA standard, Z151-09, is a step in the right direction towards improving the safety of the concrete pumping industry. This article gives an overview of the inspection requirements of the standard. Other portions of the standard covering operating procedures, operator conduct, design, construction, and other maintenance practices are also valuable tools. We highly recommend picking up a copy of the standard to use in your pumping business.