Fig. 9-4: Accumulator Charging - JLG Lull 1044C-54 II Series Service Manual

31200079
# Description
1 Capscrew
2 Valve Guard
3 Gas Valve Cap
4 Gauge Bleed Valve
5 Accumulator Test Gauge

Fig. 9-4: Accumulator Charging

Pre-charge the accumulator using the following steps (see Fig. 9-4):
1. Follow preparation procedures as outlined in Section 3 and in
Section 5 of this manual.
2. Make sure nitrogen supply is shut off.
3. Attach hose (Item 7) to nitrogen bottle.
4. Remove two (2) capscrews (Item 1), valve guard (Item 2), and gas
valve cap (Item 3).
5. Back "T" handle (Item 8) on accumulator test gauge (Item 5) all the
way out (counterclockwise). The pressure gauge must have 2500 psi
capacity (correctly calibrated).
6. Mount test gauge on accumulator gas valve (Item 9) and tighten. Be
sure of an air-tight connection when mounting gauge.
7. Close (turn in) bleed valve (Item 4).
8. Remove gauge cap (Item 6) from test valve.
9. While making sure not to loop or twist the hose, attach swivel nut on
nitrogen hose (Item 7) to gas valve.
1
4
2
3
#
6 Gauge Cap
7 Nitrogen Hose
8 "T" Handle
9 Gas Valve
10 Accumulator
Axles and Brakes
5
6
7
8
9
10
K1018
Description
9-15