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English
Hydraulic Motor Cut-Away
Torque flex locknut to
10 ft./lbs. (146N/m).
Use blue Loctite.
Use blue
Loctite on
lock ring.
Seal lip must
face up.
Use
hydraulic
sealant.
Torque head plug to
15 ft./lbs. (219 N/m).
Do not over-tighten
o-ring seal.
Torque trip
retainers to
15 ft./lbs. (365 N/m).
Do not over-tighten
o-ring seal.
Torque piston
retainers to
75 ft./lbs. (1095 N/m).
Use red Loctite.
Seal lip must
face down.
Valve rod assembly
is factory set and
permanently Loctited.
Do not disassemble.
Fluid Section
Item Part # Description Quantity
1 143-019 Retaining ring...........................................1
2 143-118 Connecting pin .........................................1
3 145-031 O-ring, PTFE............................................2
4 138-153 Packing set, leather/UHMWPE/steel........2
5 142-004 Upper packing spring ...............................1
6 144-117 Displacement rod.......................................1
7 138-001 Spring retainer..........................................1
8 142-003 Lower packing spring ...............................1
9 451-085 Outlet valve cage .....................................1
10 138-225 Outlet valve ball........................................1
11 236-012 Outlet valve seat ......................................1
12 236-011 Seal washer..............................................1
13 236-013 Outlet valve housing.................................1
14 144-822 Pump cylinder...........................................1
15 140-009 O-ring .......................................................1
16 236-141 Foot valve cage........................................1
17 178-700 Foot valve ball..........................................1
18 143-026 Foot valve seat.........................................1
19 143-025 Seat o-ring................................................1
20 236-126 Foot valve housing...................................1
144-500 Fluid section service kit, major (includes
items 6, 14, and fluid section service kit,
minor P/N 144-050)
144-050 Fluid section service kit, minor (includes
items 1, 3, 4, 10, 12, 15, 17, 19, and
Loctite P/N 426-051)
236-010 Foot valve assembly
(includes items 16–20)
236-050 Outlet valve assembly
(includes items 9–13)
1
5
6
7
8
10
9
13
12
11
14
15
3
16
17
19
18
20
4
4
2
3
Motor/
Pump
Block
