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Section 1: Assembly & Set-Up
SGS1566 & SGS1578 Skeleton Grapples 380-053M
5/2/23
10
Installation of Hydraulic Components
Figure 1-2
Rod End
Grease Zerks Must
Point Up As Shown
79108
Base End
Rod End
Base End
Customer Supplied Hydraulics
Refer to Figure 1-3:
Hydraulic hoses with fabric sleeves (#9 & #10),
straight adapters (#12), elbows (#11), and couplers (#13
& #14) are not included with grapple as they will vary
depending upon which machine the grapple is attached.
To attach customer supplied hoses in the middle:
1. Remove locknuts (#4), carriage bolts (#2 & #3) and
cover (#1).
2. Remove caps (#5) from fittings (#6B & #7B).
3. Attach customer supplied hoses to the 3/4" MJIC
fittings (#6B & #7B).
4. Replace cover (#1) and secure with carriage bolts
(#2 & #3) and locknuts (#4). Tighten locknuts to the
correct torque.
To attach customer supplied hoses on the Left side:
1. Remove plugs (#8) from fittings (#6A & #7A).
2. Attach customer supplied hoses to the 9/16" FJIC
swivel nuts (#6A & 7A).
3. Secure customer supplied hoses behind 1/4"-20
GR5 bolt (#16) and nylock nut (#15). Tighten nylock
nut to the correct torque.
Installation of Hydraulic Components
For Upper Jaws
Refer to Figure 1-2:
1. Remove nuts (#9), bolts (#10), and hose cover (#11)
from grapple frame. Keep hardware and hose cover
for reinstallation.
2. Attach hydraulic lines (#1 & #2) to grapple frame with
clamps (#3), clamp caps (#4), and bolts (#5).
Position as shown and tighten bolts (#5). Reinstall
cover removed in step 1.
3. Remove port plugs from hydraulic cylinders.
4. Attach elbow fittings (#6) to cylinders. Rotate as
shown and tighten.
5. Attach the shorter hydraulic hoses (#7) to elbows
(#6) on rod end of cylinders and ports (A) on
hydraulic line (#1) as shown and tighten.
6. Attach the longer hydraulic hoses (#8) to elbow (#6)
on base end of cylinders and ports (B) on hydraulic
line (#2) as shown and tighten.
“Customer Supplied Hydraulics”
.