New Holland LS140 Workshop Manual page 529

AIR FILTER RESTRICTION INDICATOR
SWITCH
Op. 55 414 14
REMOVAL
1. Support the boom on the boom lock pins.
2. Open the rear door and remove the left engine
side shield to access the sender.
3. Remove the B/Y, 1, and B, 2, wires from the
sender.
4. Remove the sender, 3, from the air cleaner tube.
INSTALLATION
Install the sender and reinstall the B/Y and B wires to
the sender terminals.
ENGINE COOLANT TEMPERATURE
SENDER
Op. 55 414 10
REMOVAL
1. Support the boom on the boom lock pins.
2. Open the rear door and raise and remove the top
engine shield; remove the right engine shield to
access the sender.
3. Remove the PU/LTGN wire, 1, from the sender
terminal.
4. Drain the cooling system down below the sender
level to prevent loss of coolant.
5. Remove the sender, 2, from the engine block.
INSTALLATION
1. Remove and clean the engine block thread area.
2. Apply pipe sealant to the threads of the sender.
3. Install the sender into the engine block.
4. Reinstall the PU/LTGN wire to the sender
terminal.
5. Refill the cooling system with coolant previously
removed or a 50/50 mixture of a permanent-type
antifreeze.
6. Operate the unit to remove air from the cooling
system and recheck the coolant level.
7. Reinstall and latch all shields that were removed.
SECTION 55 - ELECTRICAL SYSTEM
55-104
Copyright © New Holland
131
132