9 hose tensioning – SkyTrak 6036 Service Manual User Manual
Page 30

Section 3.
Boom
3-12
Model 6036 S/N 9B0499 and Before
intermediate boom raises up, thereby providing
clearance for removing the bottom pad.
3.
Inspect the wear pads removed as described in
the preceding
IMPORTANT notice.
3.1.9 Hose Tensioning
100 Hour Intervals
Adjust grille tilt cylinder hose or auxiliary hydraulic
hose tension whenever the boom is disassembled,
a hose is changed, or whenever proper hose
adjustment is in question. Check hose tension as
part of general maintenance every 100 hours.
IMPORTANT: Before you begin tensioning the
hoses make sure that the hoses are not twisted
within the boom. Keep the hose manufacturers
marking in line as a guide.
1.
Park forklift on level surface, engage park lock
and fully retract and level the boom.
2.
Remove the rear boom cover, Fig. 3.1.
3.
If the vehicle has auxilliary hydraulics there will
be four hoses in hose clamps, Fig. 3.16b, with
the auxilliary hose clamps stacked on top of
the grille tilt cylinder hose clamps, Fig. 3.16a.
Remove the capscrews and hose clamps,
holding upper hoses in place, Fig. 3.16b, and
move aside to gain access to the lower
capscrews and hose clamps.
IMPORTANT: Inspect the pads as follows:
• Replace wear pads that are less than 0.5" (13
mm) thick.
• The ends of wear pad attaching capscrews
must not protrude beyond the wear pad insert;
the ends must range from flush to 0.19" (5 mm)
recessed in the wear pad insert; refer to Fig.
3.3.
• When you install a wear pad on one side
(including top or bottom) of boom, replace the
corresponding wear pad on the other side of the
boom. Usually shimming will remain the same
when installing new wear pads on correspond-
ing sides of the boom.
• Apply Loctite
®
242 to all wear pad screws and
torque them to 28 to 34 lb-ft (38 to 46 N m).
a.
Inner Boom Wear Pads (Fig. 3.3)
1.
All inner boom wear pads can be removed by
working through the rear boom cover opening.
2.
The bottom pad may be removed by first
removing the top pads. Use a wooden wedge
between the inner and intermediate boom to
provide clearance for removing the bottom pad.
3.
Inspect the wear pads removed as described in
the preceding
IMPORTANT notice.
b. Intermediate Boom Wear Pads
(Fig. 3.5 and 3.6)
1.
The rear wear pads can be removed by working
through the rear boom cover opening.
2.
The rear bottom pad may be removed by first
removing the top pads, by using a wooden
wedge between the inner and intermediate
boom, thereby providing clearance for removing
the bottom pad.
3.
Front pads can be removed at the front of the
boom.
4.
The front bottom pad may be removed by first
removing the top pads. Lower the gooseneck
end of the inner boom to the ground until the
intermediate boom raises up to provide clear-
ance for removing the bottom pad.
5.
Inspect the wear pads removed as described in
the preceding
IMPORTANT notice.
c.
Outer Boom Wear Pads (Fig. 3.9)
1.
All outer wear pads can be removed working at
the front of the boom.
2.
The front bottom pad may be removed by first
removing the top pads. Lower the gooseneck
end of the inner boom to the ground until the
Fig. 3.16b Cylinder Hose Tensioning
180
°
180
°
MA6050
Hose must have a
minimum of 180° of
contact with pulley
Upper set of hose
clamps and capscrews
Pull hoses, through hose
clamps, 1" further to
tension hoses
When vehicle has auxilliary hydraulics option, remove
upper clamps in stack and tension lower hoses first and
then tension top hoses
Inner boom hose
clamps and capscrews
Lower set of hose clamps
and stacking capscrews
Pull hoses, through hose
clamps, 1" further to
tension hoses
Hose must have a minimum of
180° of contact with pulley
Fig. 3.16a Cylinder Hose Tensioning
MA6040