JLG 15/20MSP Service Manual - Manual (Page 78)

SECTION 4 - CONTROL COMPONENTS
4-22 – JLG Lift – 3121231
After Filter Pressure Check
Reinstall the hydraulic oil filter and install the t-fitting
between the hydraulic filter and the extend line to the cyl-
inder. Recheck the hydraulic pressure and compare with
the previous readings when filter was removed. If a signifi-
cant drop in pressure reading has occurred, replace the
hydraulic filter and recheck the "after filter" pressure read-
ing.
Pump/Motor/Tank Installation
BE CERTAIN THE MAST IS FULLY LOWERED BEFORE REMOV-
ING ANY HYDRAULIC LINES FROM THE PUMP UNIT. WEAR PRO-
TECTIVE GEAR WHEN WORKING AROUND PRESSURIZED
HYDRAULIC LINES. REMOVE CONNECTIONS CAREFULLY AND
CAP ALL LINES.
1. Hydraulic Oil Filter 3. Pressure Gauge Assembly
2. T- Fitting 4. Extend Line
Figure 4-8. Typical Hydraulic Pressure Gauge
Installation (After Hydraulic Filter).
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2
3
4
Pump/Motor/Tank Assembly Installation
1. Pump/Motor/Tank Assembly 3. Detach and Cap Extend
2. Attach Screws/Washers and Return Lines
Note: See Figure 4-2. for wiring connection instructions.
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3
2
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