Haulotte HA 41 PX, Operating And Maintenance Instructions Manual

Page: 58 / 82

Operation and Maintenance
46
Fig. 4 - Configuration 1
Configuration 1 (Fig. 4, page 46) :
• With the arm gently raised, the fly jib raised to its cutoff point, with the
fly jib telescopic arm extended.
• oMeasure side X1 between the underside of the arm and the turret
reinforcement (Photo 18).
Photo 18
• Leave the machine to stand for 30 min.
• oMeasure side X2 between the underside of the arm and the turret
reinforcement.
• oIf X2-X1 is > 13 mm, the hydraulic jack should be replaced.
• oMake a telescopic movement with the fly jib extended: the telescopic
arms should not extend.
Fig. 5 - Configuration 2
Configuration 2 (Fig. 5, page 46) :
• With the arm in its lowered position, the fly jib raised a few degrees,
with the telescopic arms retracted, and the suspension platform hori-
zontal. Attach a lead line approx. 17.5m in length along the axis to the
extremity of the telescopic arms to be able ot measure any variation
in height when the machine is deployed.
- Length of the extended fly jib hydraulic jack rod: B1
- Length of the extended platform compensation receptor jack rod:
C1
- Length of the extended suspension platform hydraulic jack rod: D1
Fig. 6 - Configuration 3
• Raise the arm then extend the telescopic fly jib until the cutoff point
(without making any other movement): configuration 3 (Fig. 6,
page 46) :
• Measure the height between the lead line and the ground: F1
- Leave the machine to stand for 60 min
• Measure the height between the lead line and the ground: F2
- Retract the fly jib telescopic arm
• Lower the arm to its lowered position (Fig. 5, page 48), then raise it
again:
- Length of the extended fly jib hydraulic jack rod: B2
- Length of the extended platform compensation receptor jack rod:
C2
- Length of the extended suspension platform hydraulic jack rod: D2
X