Jacobsen SLF 1880, Technical/Repair Manual

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6C-7
17.Remove the socket head capscrews (1), commu-
tator cover (2), commutator ring (3), and commu-
tator (4), (Figure 6C-3).
18.Remove the five alignment pins (5), (Figure 6C-3).
19.Remove the drive link spacer (6), rotor (7), and
stator (8) from the drive plate (9), (Figure 6C-3).
Figure 6C-3. Metering Package Disassembly
20.Remove the face seal assembly (Face seal with o-
ring expander) (20) & (21), and seal spacer (22).
21.Remove the thrust bearing (19) and spacer (18).
22.Remove the upper cover plate (23) and retaining
ring (24).
23.Remove the special bolts (25).
24.Remove the steering shaft (26) out of tube (27).
25.Remove the bushing (28) and seal (29).
STEERING VALVE INSPECTION
1. Inspect the springs (7 and 10) for bent, broken, or
distorted coils.
2. Inspect the finished ground surfaces of all the
components.
3. Inspect the slot edges and surface for nicks, scor-
ing, and rounding.
4. Inspect the hex drive (11) for wear.
5. Inspect the isolation manifold (13) for nicks,
scratches, and scoring. A polished wear pattern
due to valve plate rotation is normal.
6. Inspect the drive link (14) for wear and damage.
7. Inspect the thrust bearing (19) for brinelling, spal-
ling, and missing rollers.
8. Discard all seals and seal rings.
9. Inspect the commutator cover (2) and drive plate
(9) for wear and damage. A polished wear pattern
is normal.
10.Inspect the rotor (7) and stator (8) fit, (Figure 6C-
4).
Figure 6C-4. Rotor and Stator Inspection
STEERING VALVE ASSEMBLY
1. Install a new seal (29) and bushing (28) in the
tube (27). Crimp the tube and end in two places,
90° apart.
NOTICE
The metering package should be disassembled for
inspection purposes only. Proceed with STEP 17 for
disassembly and inspection procedures.
NOTICE
Always replace springs as a set.
NOTICE
The valve ring (8) and valve plate (9) are a matched
set and are not serviceable.