G-B-6
PARTS-SERVICE
Date: June 20, 1987
Model: H70-110XL
GRAM
(H3.50 5.00XL)
Steering
Subject: Sluggish Steering on H70-110XL (H3.50 5.00XL) Units
When servicing new units or replacing the main hydraulic pump, the steering may react in a sluggish
manner when trying to steer rapidly. The hydraulic pump contains an internal flow divider with
priority flow to the steering system. To check for proper operation of this flow divider, check
steering time. Steering time when turning from stop to stop full right to left or left to right should be
3.0 seconds at engine speeds above 1200 R.P.M. Steering time at idle will be more than 3.0 sec-
onds and can vary considerably. If the steering does not meet this specification, re-adjustment of the
flow divider can be done. Access to this adjustment on the hydraulic pump can be obtained by
removing the battery/batteries and the battery tray. The adjustment is sensitive, these directions
should be followed carefully:
1. Refer to picture. Remove lock wire (11).
2. Remove cap nut (9).
3. Loosen locknut (10). It may be Loctited in place.
4. Turn priority valve (2) clockwise with a screwdriver until it stops.
5. Then turn priority valve (2) counterclockwise one quarter turn.
6. Tighten locknut (10) while holding priority valve (2).
7. Install cap nut (9) and tighten.
8. Install lockwire (11).
continued ...
We reserve the right to make changes in design or add improvements without incur-
ring the obligation to make such changes in equipment previously manufactured.
H6030
G-B-6
Page 2
INTERCHANGEABILITY: Not affected
PARTS STOCK: Not affected
EFFECTIVE SERIAL NUMBER: Not affected
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