34
HARDI
®
New NAVIGATOR OPERATOR’S MANUAL
Maintenance
Nozzle fi lters
1
Remove the nozzle (
Fig 32).
2
Check the nozzle and the fi lter.
3
Clean the fi lter.
4
Refi t fi lter and nozzle. Repeat for each nozzle.
Spraying circuit
Fill with clean water, operate all functions and check for
leaks, use higher spray pressure than normal. Check
nozzle spray patterns visually using clean water.
50 Hours / Weekly Service
Wheel studs and nuts
Tighten wheel studs and nuts as follows with the
following torque wrench settings:
Wheel hub to rim plate: 362 Ft/lb (490 Nm)
Rim plate to rim: 230 Ft/lb (310 Nm)
Tightening sequence (
Fig 33):
Draw bar bolts
The draw bar bolts must be tightened as follows:
1
Jack up chassis so there is no load on the drawbar.
2
Tighten the chassis bolts (
A
Fig 34) - 554 Ft/lb (750
Nm)
3
Tighten the hitch bolts
(
B
Fig 34) - 162 Ft/lb
(220 Nm)
Tires
Check the tire pressures according to the table below.
Recommended
Tire Size Infl ation Pressure
PSI (kPa)
12.4 x 42
25 (175)
11.2 x 38
35 (240)
WARNING!
Never infl ate tires more than to the
pres sure specifi ed in the table. Over-infl ated
tires can explode and cause severe personal
in ju ries.
P.T.O. shaft
Check function and condition of the P.T.O. shaft’s
pro tec tion guards. Replace any damaged parts
im me di ate ly.
250 Hours / Monthly Service
Wheel bearings
Check for play in the wheel bearings:
1
Place stop wedges in front of and behind the left
hand wheel and jack up the right hand wheel.
2
Rock the right hand wheel to discover possible play
in the bearings.
3
If there is any play, support the wheel axle to
prevent the trailer from falling down from the jack.
4
Remove the hub cap (
A
Fig 35) and cotter pin
(
B
Fig 35). Turn the wheel and tighten castle nut
(
C
Fig 35) until slight resistance in wheel rotation is
felt.
5
Loosen castle nut until fi rst notch - horizontal or
vertical - is aligned with cotter pin hole in the shaft.
6
Fit a new cotter pin and bend it.
7
Fill the hub cap with fresh grease and press it on to
the hub again.
8
Repeat the procedure on the left hand wheel.
A
B
C
Fig 35
Fig 32
2
5
7
8
1
3
4
6
Fig 33
A
B
Fig 34
Summary of Contents for New NAVIGATOR 1100
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Page 34: ...32 HARDI New NAVIGATOR OPERATOR S MANUAL 7 Maintenance 6 C 500h B 50h ...
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