8999145EN: v1 26/02/2020
42
Original instructions (ENGLISH)
Website: www.spearheadmachinery.com
8
Maintenance
For routine maintenance or repair spare parts may be obtained from the Spearhead parts department.
To obtain correct part numbers; use the Spearhead on-line parts books. These are available at
dealerinside.spearheadmachinery.com/partsmanuals/manual.aspx
. You will need to enter the machine serial
number. The correct part numbers must be quoted when ordering spares.
8.1
Hydraulic components
8.1.1
Valves
For valve hosing information refer to the online parts manual specific to the serial number of your machine, by
using the Spearhead on-line parts books. This is available at
dealerinside.spearheadmachinery.com/partsmanuals/manual.aspx
The online parts book contains a hosing diagram for the whole machine.
8.1.2
Rams
It is advisable to check all ram caps for tightness occasionally and if found to be loose tighten them immediately.
8.1.3
Hoses
It is false economy to try and make a damaged hose last a bit longer, because a failure can spill a lot of oil on the
road endangering traffic, the environment and costing money. To reduce the risk of this happening and ensure a
long life from the hoses, follow the guidelines below. On a weekly basis:
Check that all hoses and their connections are in good condition and that there are no leaks or
damage. Pay particular attention to the rotor drive circuit. Replace any hose that is leaking or
damaged.
Check to see that hoses are not and have not been chafing against sharp edges. If evidence of
chafing is found then inspect for damage and if found replace. Re-route any hose that has been
chafing; see section on ‘Hydraulic hose checks’ in ‘Installation’ chapter.
Check to ensure that hoses are fitted without kinks or sharp bends. Pay particular attention to the
suction hose from the tank to the pump.
If in doubt about the condition of any hose replace it. When replacing hoses, be sure to tighten to the
correct torque setting, see Figure 8.1.
WARNING!
Some hoses may contain residual pressure, take care when removing them.
Figure 8.1
…/cont’d
BSP SWIVEL FEMALE TORQUE VALUES
Thread
Metric (Nm)
Imperial (lbf.ft)
Diameter
(inch)
nominal
Min - max
nominal
Min - max
1/4
20
15 -25
14.75
11.06 - 18.44
3/8
34
27
– 41
25.07
19.91 - 30.24
1/2
60
42
– 76
44.25
30.97 - 56.05
5/8
69
44
– 94
50.88
32.45 - 69.32
3/4
115
95
– 135
84.81
70.06 - 99.56
1
140
115
– 165
103.24
84.81 - 121.68
1 1/4
210
140
– 280
154.87
103.24 - 206.49
1 1/2
290
215 - 365
213.86
158.55 - 269.17
