TM 5-3805-274-13&P
0033
REMOVAL
NOTE
Have a suitable container that holds up to 27 gal. (102 L) ready to
catch oil.
1. Remove four screws (Figure 1, Item 13), lockwashers (Figure 1, Item 14), two split flanges
(Figure 1, Item 15), hydraulic hose (Figure 1, Item 11), and O-ring (Figure 1, Item 12) from suction port
(Figure 1, Item 16) on hydraulic pump (Figure 1, Item 2) and drain hydraulic oil from reservoir. Discard
lockwashers (Figure 1, Item 14) and O-ring (Figure 1, Item 12).
2. Remove four screws (Figure 1, Item 9), lockwashers (Figure 1, Item 10), two split flanges
(Figure 1, Item 6), hydraulic hose (Figure 1, Item 8), O-ring (Figure 1, Item 7), test block
(Figure 1, Item 5), and O-ring (Figure 1, Item 4) from pressure port (Figure 1, Item 3) on hydraulic
pump (Figure 1, Item 2). Discard lockwashers (Figure 1, Item 10) and O-rings (Figure 1, Items 4 and 7).
NOTE
It may be necessary to use a 3/4-in. crowfoot attachment and
extension to remove the top two screws and lockwashers.
3. Support hydraulic pump (Figure 1, Item 2) and remove four screws (Figure 1, Item 17), lockwashers
(Figure 1, Item 18), and hydraulic pump (Figure 1, Item 2) from PTO drive (Figure 1, Item 1). Discard
lockwashers (Figure 1, Item 18).
END OF TASK
INSTALLATION
NOTE
It may be necessary to use a 3/4-in. crowfoot attachment and
extension to tighten the top two screws.
1. Install hydraulic pump (Figure 1, Item 2) on PTO drive (Figure 1, Item 1) with four new lockwashers
(Figure 1, Item 18) and screws (Figure 1, Item 17). Tighten screws (Figure 1, Item 17).
2. Install new O-ring (Figure 1, Item 4) and test block (Figure 1, Item 5) on pressure port (Figure 1, Item 3)
of hydraulic pump (Figure 1, Item 2) with new O-ring (Figure 1, Item 7), hydraulic hose
(Figure 1, Item 8), two split flanges (Figure 1, Item 6), four new lockwashers (Figure 1, Item 10), and
screws (Figure 1, Item 9). Tighten screws (Figure 1, Item 9).
3. Install new O-ring (Figure 1, Item 12) and hydraulic hose (Figure 1, Item 11) on suction port
(Figure 1, Item 16) of hydraulic pump (Figure 1, Item 2) with two split flanges (Figure 1, Item 15), four
new lockwashers (Figure 1, Item 14), and screws (Figure 1, Item 13). Tighten screws (Figure 1, Item 13).
4. Fill hydraulic reservoir, start engine, and engage PTO (TM 9-2320-273-10), check system for oil leaks,
and shut down engine.
0033-2
