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11
Maintenance and Care
As the owner of a Kevrek Crane, you can expect it to continue operating safely and reliably for many years. This statement
and our warranty however presupposes that the crane will be subjected to regular inspection and preventative and service
maintenance.
The objective of periodic inspection is to ensure the serviceability and safe operation of the crane. Recording of information
will provide a history of the crane’s condition from the inspection reports, maintenance and any repairs carried out in
accordance with Kevrek’s recommendations and proceeding. A record of the quarterly inspections and annual servicing is
required and relevant information originating from each inspection and service..
It is recommended that a Complete service is carried out by a qualified Kevrek service agent after the first 6 months
of operation and thereafter every 12 months.
Weekly Inspection
*
Check oil level in Hydraulic Oil Tank.
*
Check Battery Isolator Key is functional.
*
Check Valve and Microswitches. Start Electric Motor when lever is moved and stop Motor when lever is returned to
neutral.
*
Check the rest of the Crane for damage.
*
Repair immediately any component on the Crane that is damaged.
Inspection and Maintenance Every 3 Months
*
Remove Console Cover and inspect Slew Worm for excessive wear or movement. Replace or tighten as necessary,
clean off old grease and apply fresh grease.
*
Check Valve Lead Seal is in place.
*
Check Hose Connections under Valve and tighten if necessary.
*
Check and tighten Hydraulic Connections around Power Pack and around Crane, Leg and Slew Motor.
*
Check Safety Latch on hook and general condition of other lifting tackle that is used.
*
Check all Notices, Load Chart Stickers and Valve Lever Stickers are in place and legible.
*
Check Mounting Bolts and structural integrity of Mounting Frame.
*
Carry out visual inspection of structural parts to detect any cracks or deformation.
*
Inspect nylon wear buttons between Boom sections for excessive wear and replace if necessary.
*
Check oil level in Hydraulic Oil Tank.
*
Lubricate contact areas and the top and Bottom of the Booms with heavy, good quality grease.
*
Put Crane through full capacity Load Test and listen for any suspicious noises or excessive play in pivot points.
Hydraulic Oil Maintenance
The oil level in the Power Pack of your Kevrek Crane should be checked with
the Crane in the fully folded position and should be at the level indicated in
the diagram.
Hydraulic oil should be changed every 12 months.
Use only fresh High
Quality 46 WEIGHT Hydraulic Oil.
Remove Power Pack front cover every six months to inspect Motor Brushes. Install new Brushes if necessary and re-install
front cover securely.
MAINTENANCE AND CARE
Trouble Shooting
Crane will operate but Hydraulic action is slow and jerky:
*
Check oil in Power Pack oil tank - top up if necessary.
*
Check oil tank for contamination and possible contaminants in Control Valve or Load Holding Valves.
*
Drain complete Hydraulic system.
*
After reassembly be sure to bleed all Hydraulic functions free of air.
*
Check Suction Filter is clean.
Isolator Key Is on but Crane will not run:
*
Check Emergency Stop is not pushed in.
*
Check 5amp in-line Fuse in Harness running from Valve Console down to Electric Power Pack Solenoid - replace if
necessary.
*
Check Isolator Switch for correct operation - replace if faulty.
*
Check for faulty Motor Solenoid or Electric Motor Brushes - replace if necessary.
*
Check Emergency Stop N/C Contact Block
Crane will not support Full Permissible Load, without slowly lowering down:
*
Load Holding Valve is possibly blocked with contaminants or in need of adjustment. Contact your nearest Kevrek agent
for this service.
Crane will not lift allowable load:
*
Pressure Relief Valve on Electric Power Pack or Control Valve requires adjustment. Contact your nearest Kevrek agent
for this service.
Crane Motor will not stop working when the Levers or Switches are not activated:
*
The DC Motor Solenoid is stuck, closed or the Mircoswitch/Microswitch Actuator is faulty. - Replace the faulty part.
(Until the part can be replaced, turn the Crane on and off by using the Isolation Switch).
TROUBLE SHOOTING
25mm