YDT-35 Operating and Servicing Manual
HL066(EN) ISSUE 1, 05/2015
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The internal Tank/Filter timer will flag up when a change is due.
Refer to Figure 6.4
5. Place a suitable container under the drain valve (item 1). Open the drain valve and empty
the tank.
6. Remove the filter (item 2) as illustrated and replace with a new one.
7. Close the drain valve and refill the tank with clean fluid as described in section 3.4.
8. Discard the filter in accordance with local waste disposal regulations.
9. Reset the Filter Timer from the Settings >> Tank/Filter Timers.
The password to access the timers is 1000.
10. It is recommended to drain a small volume of fuel from the tank after replacing the filter, in
order to avoid air gaps.
6.1.8
Backleak (Return) Filter Change
Every 12 months or 100 operating hours, whichever is sooner, the backleak (return) filter should be
changed to ensure correct level of filtration. If the injectors being tested are excessively dirty the filter
check must be carried out more frequently and the fluid filter replaced sooner than the recommended
interval.
Refer to Figure 6.5
1. Unscrew the backleak (return) pipe connector (item 1) using a 14mm A/F spanner.
2. Remove the filter (item 2) and replace with a new one.
Figure 6.5 Backleak (Return) Filter
6.1.9
High Pressure Pipe Change
Repeated flexing of the pipe to suit different injectors will weaken the pipe over time.
Every 36 months or more frequently if used regularly with tight bends, change the flexible high
pressure pipe.
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