13
9 TROUBLE-SHOOTING
Situation
Cause of trouble
Remedy
1. Jack does not hold firmly
the load.
Brake slipping.
Brake adjusting or repair
according to the chapter
„Maintenance“.
2. Jack jacks up heavily or
does not raise the load.
(1) Jack is overloaded.
(2) Damaged geared
transmission.
(1) Lower the load weight
to the value of the safe
working load.
(2) Repair of the jack
3. Jack emits the special
noise.
Insufficiently greased
geared transmission.
Carry out the lubrication of
the geared transmissions
by grease.
4. Characteristic sound is
not heard when snapping
the pawls to dents of
ratchet.
Malfunction of pawls.
Rust, impurities, broken
spring.
Clean up, replace the
spring.
10 GREASING
10.1 GENERALLY
Before application of the grease remove old grease, clean up components with grease
solvent and apply new grease. Use grease specified by the producer.
Lifters type HZ are equipped with a lubrication plug on the cover of the gear transfer. We
recommend regular lubrication of the gear mechanism at least once every 6 months.
10.2 JACK MECHANISM
Throw up the unloaded jack to the maximum position. Grease with PM-A2 vaseline or its
equivalent the ridge bar and lower down the jack.
Lifters type Rack lifter are to be lubricated with a lubrication press through the lubrication
plug.
Grease all slipping or moveable surfaces on the crank of the jack.
! NOTICE
Imperfect maintenance and insufficient greasing can cause a serious accident.
ALWAYS
grease more often in corrosive environment (salt water, oceanic climate,
acids etc.) than in ordinary circumstances.
11 MAINTENANCE
11.1 SECURITY PRINCIPLES
! Warning
Only qualified persons (service organizations), trained in safety and maintenance of
the jacks, can carry out maintenance and professional inspections.
ALWAYS
use entirely components supplied by the producer.
