Service Manual User guide
Table Of Contents
- 10709790_B_644B,6K,844C,8K,1044C,10K_Lull_Service_Mnl
- Quick Reference
- Revision Record
- Table Of Contents
- List Of Figures
- List Of Tables
- Section 1 Safety
- Section 2 Identification & Specifications
- Section 3 General Maintenance
- Section 4 Reference Diagrams
- Section 5 Supply, Pressure & Return Hydraulics
- Section 6 Boom & Transfer
- Section 7 Frame Tilt & Oscillation
- Section 8 Transmission
- Section 9 Brakes
- Section 10 Outriggers

Brakes
Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
9-23
Removal
Accumulator
Models with Control Manifold Hydraulics
6K-37 (S/N 101–317)
6K-42 (S/N 101–119)
8K-42 (S/N 101–220)
10K-42 (S/N 101–106)
10K-54 (S/N 101–103)
644B-37 (S/N 101–590, 592–666)
644B-42 (S/N 101–207)
844C42 (S/N 101–521)
1044C-42 (S/N 101–116)
1044C-54 (S/N 101–154)
Fig. 9-14: Accumulator Installation – Models with Control Manifold
Hydraulics
The following procedure refers to Fig. 9-14.
1. Follow preparation procedures as outlined in Section 3 and in
Section 5 of this manual.
2. With the engine off, install a brake pressure diagnostic port test gauge
to the hose into the brake diagnostic port. This test gauge kit sold by
JLG includes a 3-foot long hose making it possible to read the gauge
from the operator cab.
# Description
1 Capscrew
2 Gas Valve Guard
3Gas Valve Cap
4Gas Valve
5 Accumulator
6 Mounting Bracket
7Hex Nut
# Description
8 Lockwasher
9Capscrew
10 Hydraulic Hose to AC Port
on Control Manifold
11 Elbow
12 Lockwasher
13 Hex Capscrew
2
K1115
3
8
9
1
11
10
7
6
5
4
13
12