Variable Displacement Pump - Graco Line Driver 233725 Repair Manual

Variable Displacement Pump

Removal
1. Be prepared to plug hydraulic connections.
2. Fig. 7. Disconnect hydraulic lines (109, 110) and
hoses (118, 119) from variable displacement pump
(5).
3. Remove two cap screws (80), two lock washers
(75) and two washers (74).
4. Remove cap screw (87) and washer (71) from
control arm (58).
5. Remove cap screw (129), lock nut (130) and
coupler guard (125).
6. Remove set screw (A) from flexible coupling (34)
and remove variable displacement pump (5) and
key (83).
Fig. 7
Installation
1. Install variable displacement pump (5) and key
2. Install coupler guard (125) with cap screw (129),
3. Install washer (71) and cap screw (87) into control
4. Install two washers (74), two lock washers (75)
5. Connect hydraulic lines (109, 110) and hoses (118,
129 118
125
(83). Install set screw (A) into flexible coupling
(34).
and lock nut (130).
arm (58).
and two cap screws (80).
119) to variable displacement pump (5).
119
83
130
87
71
58
A
5
80
75
74
109
110
1
2
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