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Manitowoc 3900W - Cleaning Suction Screen; Replacing Converter Oil Filter

Manitowoc 3900W
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Claml
Ring
Cleaning Suction Screen
(see Figure 14)
1. Disconnect the charge pump suction line from the oil
tank.
2. Remove the pipe fitting and screen from the tank.
3. Wash the screen in solvent and inspect it for rust,
holes, or breaks in the screen. Replace it if necessary.
4. Reinstall the screen and pipe fitting into the oil tank.
IMPORTANT
Care must be taken during reassem-
bly of suction screen. All connections and fittings must
be tight; otherwise, air can be sucked into converter oil
system causing converters to overheat.
5. Reconnect the suction line to the oil tank.
Suction~
Screen
Pipe
Fitting
Shut-off
Valve
Hose [~
Connector
_~
--'~~ ~ A293
Figure
14 Suction Screen (inside oil tank)
Cover with By-pass
seal Valve
Replacing Converter Oil Filter (see
Figure 15)
Two types of 25-mircron filters are used:
Cartridge Type -- Replacement Element
Purolator No. 63151-3
Fram No. CH8PL
Spin-on Type -- Replacment
Cross No. 1A9023
Canflo No. RSE-30-25
CARTRIDGE FILTER
1. Remove the plug and drain the filter housing.
2. Hold the cover down and remove the clamp ring.
There will be a slight spring tension on the cover.
3. Remove the cover and discard the element and the
cover gasket.
4. Clean the housing and gasket surface.
5. Install the new element in the housing.
6. Lubricate the new cover gasket with clean oil and
assemble it to the housing.
7. Carefully place the cover on top of the element.
8. Press down on the cover and securely install the
clamp ring.
9. Install and securely tighten the drain plug.
10. Check for leaks after start up.
SPIN-ON FILTER
1. Unscrew the filter from the filter head and discard the
filter.
2. Clean the gasket contact area on the head.
3. Lubricate the gasket on the new filter with clean oil.
4. Turn the new filter onto the head; turn the filter one
quarter turn tighter after the gasket contacts the head.
5. Check for leaks after start up.
Cartridge
Filter
Spin-on
Filler
Figure
15 Converter Filters
(Continued)
FOLIO 941-9
395143

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