English
Electric pallet truck
EGU 14 P; EGU 22 P; EGU 30 P
F8.1.21
Design changes under reserve!
page 27
6. Description of Required Inspection and Maintenance
6.1. Hydraulic System
The hydraulic system consists of the hydraulic aggregate with mounted-on speed-adjustable lowering valve
and safety valve, as well as lifting cylinder with incorporated lowering brake valve.
The hydraulic system requires almost maintenance apart from the recommended tests (see
Fehler!
Verweisquelle konnte nicht gefunden werden.
- 3.4) and the required oil change (see
Fehler!
Verweisquelle konnte nicht gefunden werden.
- section 13 and oil recommendations 5.2).
Prior to maintenance or repair relieve the pressure in the hydraulic system. Lower the fork completely and
remove the load.
If repair is unavoidable on the extended lifting structure, secure all parts (fork, mast, cylinder) against unin-
tended lowering.
Do not run the hydraulic pump without oil !
Replace the pressure hoses in case of damage or on demand, but at least after 6 years.
For oil changing suck the oil out of the oil tank. For further details see
Fehler! Verweisquelle konnte nicht
gefunden werden.
- oil recommendation 5.2
Ventilate the hydraulic system after oil change or on demand.
Ventilation may only be effected in unloaded state.
Ventilation Process
Slightly open the screw plug
•
at the top of the hydraulic cylinder.
Operate the adjusting lever (see 4.3.3) until hydraulic oil discharges without bubbles.
Tighten the screw plug
•
before operating the lowering valve
6.2. Electro-magnetic Spring Brake
Works on the brake may only be executed by authorised
and competent personnel.
The brakes are virtually maintenance-free.
However, we recommend to check the ventilation gap S
Lü
= at regular intervals depending on type of application
(every 2000 operating hours). If the ventilation gap has
reached S
Lümax
]
0,5 mm, the nominal value S
Lü
= 0,2
mm has to be re-adjusted.
For that, loosen the fixing screws
(A)
and tighten the
sleeve screws
(3)
until on three points of the
circumference (measured between magnetic body and
anchor washer by means of thickness gage) the same
value for S
Lü
= 0,2 mm results. Then, re-tighten the fixing
screws.
release path
S
Lü
gage
A
6.3. Electric System
During all works on the electric system, pull the battery plug out of the
feeding socket.
Due to danger of short circuit, no metallic objects must be laid on the
battery.
7. Battery
7.1. Substituting the battery
1.
Remove the battery from its retainers;
2.
Remove the cables from the battery terminals;
3.
Slide out the battery;
4.
Mount the battery following the above instructions in reserve order, fixing in place and connecting it correctly.
Before assembly check the battery for correct mechanical condition.
Fix the pole terminals safely to the respective end poles + and - of the battery.
This is a permanent connection and shall not be used for continuous changes.
