3
Section I – Introduction
A. Purpose of Manual
This manual describes operational characteristics and over-
haul information for fixed and variable delivery inline piston
type pumps and motors. The information contained herein
pertains to the latest design series.
B. General Information
Related Publications – Service parts information and instal-
lation dimensions are not contained in this manual. The parts
catalogs and installation drawings listed in Table 1 are avail-
able from Vickers.
Model
Parts Drawing
Installation Drawing
2520V
I-3186-S
504000
3520V
I-3180-S
504300
3525V
I-3187-S
504500
4520V
I-3182-S
504600
4525V
I-3188-S
504800
4535V
I-3176-S
505000
Table 1. Parts and Installation drawings
Model Codes – Variations within each basic model series are
covered in the model code. Table 2 is a breakdown of the model
codes covering these units. the model code will be stamped into
the cover nameplate. If an older design unit is being updated to
the new 282/283 design, stamp the new design number on the
nameplate. Inquiries should always include the complete unit
model code number as stamped on the nameplate.
Model Code
5
6
7
8
9
10
11
12
1
2
3
4
1
Special seals
Mineral and fire resistant fluids
2
Pump series
2520
4520
3520
4525
3525
4535
3
Quiet intra-vane type
4
SAE delivery USgpm – shaft end
2520V – 12, 14, 17, 21
3520V – 25, 30, 35, 38
3525V – 25, 30, 35, 38
4520V – 42, 50, 60
4525V – 42, 50, 60
4535V – 42, 50, 60
5
Port connections
A – SAE 4 bolt flange
B – SAE straight thread at #2 outlet port
6
SAE delivery USgpm – cover end
1200 RPM at 100 PSI
2520V – 2, 5, 8, 11, 12, 14
3520V – 2, 5, 8, 11, 12, 14
3525V – 12, 14, 17, 21
4520V – 2, 5, 8, 11, 12, 14
4525V – 12, 14, 17, 21
4535V – 25, 30, 35, 38
7
Shaft type
1 – Straight with square key
(standard, all models)
86 – Straight with square key (heavy
duty, all models except 2520V)
8
#1 Outlet port position
9
#2 Outlet port position
10
Design
11
Rotation (viewed from shaft end)
L – Left hand
Omit – Right hand
12
Suffix – Industrial design
2 – SAE 2 bolt mounting
3 – Foot mounting
Table 2. Model code breakdown
